private clouds - Page 101

How to host multiple RRAS in same network?

- by Vijay

i have hosted w2003 RRAS in my network succesfully ( Natting with one public IP ) i need to host another RRAS setup same like above with different private IP address and public IP's,. when i configured so, both w2003 servers got frozen and internet not working. sometimes the gateway is same for both the servers. How can i host 2 RRAS in the same network, i am using RRAS to limit bandwidth for computers running private ip's through bandwithcontroller software.

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Apache Error Upgrading to PHP 5.5

- by user195385

I am trying to upgrade php and received this error at the command line: httpd: Syntax error on line 493 of /private/etc/apache2/httpd.conf: Syntax error on line 8 of /private/etc/apache2/other/+php-osx.conf: Cannot load /usr/local/php5/libphp5.so into server: dlopen(/usr/local/php5/libphp5.so, 10): Symbol not found: _libiconv\n Referenced from: /usr/local/php5/lib/libintl.8.dylib\n Expected in: /usr/lib/libiconv.2.dylib\n in /usr/local/php5/lib/libintl.8.dylib I was trying to upgrade at http://php-osx.liip.ch/ using the command: curl -s http://php-osx.liip.ch/install.sh | bash -s 5.5 Any help would be appreciated!

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SSH Socks Proxy wiith iptables REDIRECT

- by Radium

I have googled and haven`t found the answer on my question. Help me please. There are two servers: serverA with public IP 12.0.0.10 and an private IP 10.0.0.5 serverB with public IP 20.0.0.11 I have setup SOCKS proxy on serverB to serverA: ssh -D20.0.0.11:2222 [email protected] So when on my local machine in a browser i specify SOCKS proxy 20.0.0.11:2222 (serverB:2222) as external IP while browsing i get 12.0.0.10 (serverA IP). That is ok. As well if i go onto http://10.0.0.5 (serverA private IP) it is also reachable. That is what i need. I want to make servers A private IP to be available through servers B public IP on certain ports but without specifying SOCKS in my browser. I could use ssh port forward but the problem is - i need to forward many ports and do not know which exactly - i know only the range. So when i connect to 20.0.0.11 to any port , for example, from 3000:4000 range, i want that traffic to be redirected to 10.0.0.5 on the same port. That is why i`ve decided maybe SOCKS proxy via SSH and iptables REDIRECT could help me. Client - serverBPublicIP (any port from range 3000:4000) - serverAPublicIP - serverAPrivateIP (the port was requested on serverBPublicIP) On serverB i do: ssh -D20.0.0.11:2222 [email protected] iptables -t nat -A PREROUTING -d 20.0.0.11 -p tcp --dport 3000:4000 -j REDIRECT --to-port 2222 But that does not work - when i telnet on 20.0.0.11:3001 for example i do not see any proxied traffic on the serverA. What should i do else? I have tried tcpsocks like this (in example i am telneting to 20.0.0.11:3001) Client -> 20.0.0.11:3001 -> iptables REDIRECT from 3001 --to-port 1111 -> tcpsocks from 1111 to 2222 -> SOCKS proxy from serverB to serverA on port 2222 -> serverA But i do not know what to do with the traffic on serverA. How to route it to its private IP. Help me please. I know, VPN removes all the hell i am trying to create, but i have no ability to use tun/tap device. It is disabled.

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ESXi configuration

- by Simone Falcini

I just bought a dedicated server on online.net I have a public and a private ip. I installed esxi from their panel and I can connect successfully with my vsphere client. The problem is this: I want to create some instances and I want to give them different private ips. I also want to create some NAT rules to forward all users coming to my public ip port 80 to a specific instance. How can I do that? Thanks

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Building a Mac/PC Network in a Dorm with Network Restrictions

- by user70340

I have been a Windows XP user for the last few years, but I recently bought a 15'' MacBook Pro for research purposes. I would like to set up a no-hassle Mac/PC Network at home so that I can access the internet on both computers and hardware between computers (i.e. a harddrive, or a mouse/keyboard with Synergy). Unfortunately, I live in a dorm with silly network restrictions so a solution is not straightforward. In particular: The dorm has a wired and wireless network, both which provide an internet connection. The wired network provides way faster internet (download speeds of 15 MB/s vs. 2 MB/s on wireless), so I would like to somehow exploit this, at least on my PC for Bittorrent :) Multiple devices can connect to the wireless network, but cannot "see" each other on the network (so software like Synergy would not work). Only 1 MAC address can connect to the wired network at a time. Ideally I would just connect a wireless router to the wired network and then have both the Mac and the PC on that, but the 1 MAC address restriction will not allow the both computer to access the internet simultaneously. I cannot think of a way to bypass this restriction (though I'm not network savvy), so I am planning to create a private no-internet network to allow the devices to see each other and share hardware. Here are some thoughts. I would appreciate any feedback at all! If I build a private wireless network: (first choice) I will use a wireless router that is not connected to the internet. My PC and Mac will be connected to each other wirelessly. I can then connect the PC to the internet via a wired network, but then the Mac will not have internet access as its wireless card is already in use. In this case, could I stream internet access from the PC to the Mac via the wireless network? Or could I buy a USB wireless card for the Mac so that it can connect to both my private network and the dorm network? If I build a private wired network: (second choice) Then both the PC and the Mac will connect to the internet wirelessly, which means I cannot take advantage of the faster download speeds.

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Digitally sign my email (in WLM) with my GnuPG key?

- by Relequestual

Hi all, If I understand PGP correctly, I can digitally sign my email with my private key, which will prove they are from me, right? I created my public and private key on my server, but I can't work out how to set up digital signing with Windows Live Mail. Just to be clear, I'm talking about my own domain email account and not a hotmail account. Any ideas? Thanks in advance.

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Streaming audio/video in a publicly-hosted server increases bandwith usage

- by Eka

I have a website hosted in a public server (withoud any streaming content) ,using public hosting instead of private because its cheaper. But in public hosting their are limitations when compared to private hosting such as monthly bandwidth usage (1 GB), disk space, cpu usage etc. I am planning to embedd videos and audios (from other websites like youtube) to my already existing website. My question is if a client streams a embedded video/audio (hosted in another website) from my website any change in bandwidth occurs.

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s3fs changing s3 permissions?

- by magd1

My developer believes that s3fs is changing my bucket's permissions. Is this possible? I want my bucket to be public, but it keeps reverting back to private. Here's my fstab. s3fs#production /mnt/production fuse use_cache=/tmp,use_rrs=1,allow_other,uid=1000,gid=1000 0 0 My developer mentioned the "-o default_acl (default="private")" option. The documentation refers to "canned acl", but I don't understand what these are.

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Open Source App Stor

- by Kortex786

Hy Everyone, I want to manage a kind of private App Store. All users of my company can download apps or software from the Intranet. Here is a sample of what I want for a private use : http://www.01net.com/telecharger/ Does anyone know a open source service that can do that ? Thx.

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DNS Setting keeps changing on me

- by Chiggins

So on my Windows Server 2008 box, I have a DNS server installed on it. For some reason, every ten minutes or so, the Host (A) address for the computer keeps on changing to its internal private IP address. I want it to have its public address for Active Directory purposes, but it keeps changing itself back to the private IP address. Any idea as to why, and how to change it? If it makes a difference, this is an Amazon EC2 server. Thanks

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How can I block access to public server IP for OpenSSH in Debian?

- by VanDerSpar

I got a Debian server with a public and a private IP in a DMZ. I need to be able to connect to it through SSH on our private side, and then block all access to the public address. Both /etc/hosts.deny and sshd_config seems to only let one block incoming IP addresses. What I really want is to disable SSH connections for the public IP. I've been trying iptables, but I haven't had luck with that neither. Any help is appreciated.

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How to call a WCF service using ksoap2 on android?

- by Qing

Hi all, Here is my code import org.ksoap2.*; import org.ksoap2.serialization.*; import org.ksoap2.transport.*; import android.app.Activity; import android.os.Bundle; import android.widget.TextView; public class ksop2test extends Activity { /** Called when the activity is first created. */ private static final String METHOD_NAME = "SayHello"; // private static final String METHOD_NAME = "HelloWorld"; private static final String NAMESPACE = "http://tempuri.org"; // private static final String NAMESPACE = "http://tempuri.org"; private static final String URL = "http://192.168.0.2:8080/HelloWCF/Service1.svc"; // private static final String URL = "http://192.168.0.2:8080/webservice1/Service1.asmx"; final String SOAP_ACTION = "http://tempuri.org/IService1/SayHello"; // final String SOAP_ACTION = "http://tempuri.org/HelloWorld"; TextView tv; StringBuilder sb; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); tv = new TextView(this); sb = new StringBuilder(); call(); tv.setText(sb.toString()); setContentView(tv); } public void call() { try { SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME); request.addProperty("name", "Qing"); SoapSerializationEnvelope envelope = new SoapSerializationEnvelope( SoapEnvelope.VER11); envelope.dotNet = true; envelope.setOutputSoapObject(request); HttpTransportSE androidHttpTransport = new HttpTransportSE(URL); androidHttpTransport.call(SOAP_ACTION, envelope); sb.append(envelope.toString() + "\n");//cannot get the xml request send SoapPrimitive result = (SoapPrimitive)envelope.getResponse(); //to get the data String resultData = result.toString(); // 0 is the first object of data sb.append(resultData + "\n"); } catch (Exception e) { sb.append("Error:\n" + e.getMessage() + "\n"); } } } I can successfully access .asmx service, but when I try to call a wcf service the virtual machine said : Error: expected:END_TAG{http://schemas.xmlsoap.org/soap/envelope/}Body(position:END_TAG@1:712 in java.io.InputStreamReader@43ba6798 How to print what the request send? Here is the wcf wsdl: <wsdl:definitions name="Service1" targetNamespace="http://tempuri.org/"> - <wsdl:types> - <xsd:schema targetNamespace="http://tempuri.org/Imports"> <xsd:import schemaLocation="http://para-bj.para.local:8080/HelloWCF/Service1.svc?xsd=xsd0" namespace="http://tempuri.org/"/> <xsd:import schemaLocation="http://para-bj.para.local:8080/HelloWCF/Service1.svc?xsd=xsd1" namespace="http://schemas.microsoft.com/2003/10/Serialization/"/> </xsd:schema> </wsdl:types> - <wsdl:message name="IService1_SayHello_InputMessage"> <wsdl:part name="parameters" element="tns:SayHello"/> </wsdl:message> - <wsdl:message name="IService1_SayHello_OutputMessage"> <wsdl:part name="parameters" element="tns:SayHelloResponse"/> </wsdl:message> - <wsdl:portType name="IService1"> - <wsdl:operation name="SayHello"> <wsdl:input wsaw:Action="http://tempuri.org/IService1/SayHello" message="tns:IService1_SayHello_InputMessage"/> <wsdl:output wsaw:Action="http://tempuri.org/IService1/SayHelloResponse" message="tns:IService1_SayHello_OutputMessage"/> </wsdl:operation> </wsdl:portType> - <wsdl:binding name="BasicHttpBinding_IService1" type="tns:IService1"> <soap:binding transport="http://schemas.xmlsoap.org/soap/http"/> - <wsdl:operation name="SayHello"> <soap:operation soapAction="http://tempuri.org/IService1/SayHello" style="document"/> - <wsdl:input> <soap:body use="literal"/> </wsdl:input> - <wsdl:output> <soap:body use="literal"/> </wsdl:output> </wsdl:operation> </wsdl:binding> - <wsdl:service name="Service1"> - <wsdl:port name="BasicHttpBinding_IService1" binding="tns:BasicHttpBinding_IService1"> <soap:address location="http://para-bj.para.local:8080/HelloWCF/Service1.svc"/> </wsdl:port> </wsdl:service> </wsdl:definitions> It uses in tag and the asmx uses in tag what's the difference? Thanks. -Qing

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What is the equivalent of Oracle’s REF CURSOR in MySQL when using JDBC?

- by dacracot

In Oracle I can declare a reference cursor... TYPE t_spool IS REF CURSOR RETURN spool%ROWTYPE; ...and use it to pass a cursor as the return value... FUNCTION end_spool RETURN t_spool AS v_spool t_spool; BEGIN COMMIT; OPEN v_spool FOR SELECT * FROM spool WHERE key = g_spool_key ORDER BY seq; RETURN v_spool; END end_spool; ...and then capture it as a result set using JDBC... private Connection conn; private CallableStatement stmt; private OracleResultSet rset; [...clip...] stmt = conn.prepareCall("{ ? = call " + call + "}"); stmt.registerOutParameter(1, OracleTypes.CURSOR); stmt.execute(); rset = (OracleResultSet)stmt.getObject(1); What is the equivalent in MySQL?

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Pure Server-Side Filtering with RadGridView and WCF RIA Services

Those of you who are familiar with WCF RIA Services know that the DomainDataSource control provides a FilterDescriptors collection that enables you to filter data returned by the query on the server. We have been using this DomainDataSource feature in our RIA Services with DomainDataSource online example for almost an year now. In the example, we are listening for RadGridViews Filtering event in order to intercept any filtering that is performed on the client and translate it to something that the DomainDataSource will understand, in this case a System.Windows.Data.FilterDescriptor being added or removed from its FilterDescriptors collection. Think of RadGridView.FilterDescriptors as client-side filtering and of DomainDataSource.FilterDescriptors as server-side filtering. We no longer need the client-side one. With the introduction of the Custom Filtering Controls feature many new possibilities have opened. With these custom controls we no longer need to do any filtering on the client. I have prepared a very small project that demonstrates how to filter solely on the server by using a custom filtering control. As I have already mentioned filtering on the server is done through the FilterDescriptors collection of the DomainDataSource control. This collection holds instances of type System.Windows.Data.FilterDescriptor. The FilterDescriptor has three important properties: PropertyPath: Specifies the name of the property that we want to filter on (the left operand). Operator: Specifies the type of comparison to use when filtering. An instance of FilterOperator Enumeration. Value: The value to compare with (the right operand). An instance of the Parameter Class. By adding filters, you can specify that only entities which meet the condition in the filter are loaded from the domain context. In case you are not familiar with these concepts you might find Brad Abrams blog interesting. Now, our requirements are to create some kind of UI that will manipulate the DomainDataSource.FilterDescriptors collection. When it comes to collections, my first choice of course would be RadGridView. If you are not familiar with the Custom Filtering Controls concept I would strongly recommend getting acquainted with my step-by-step tutorial Custom Filtering with RadGridView for Silverlight and checking the online example out. I have created a simple custom filtering control that contains a RadGridView and several buttons. This control is aware of the DomainDataSource instance, since it is operating on its FilterDescriptors collection. In fact, the RadGridView that is inside it is bound to this collection. In order to display filters that are relevant for the current column only, I have applied a filter to the grid. This filter is a Telerik.Windows.Data.FilterDescriptor and is used to filter the little grid inside the custom control. It should not be confused with the DomainDataSource.FilterDescriptors collection that RadGridView is actually bound to. These are the RIA filters. Additionally, I have added several other features. For example, if you have specified a DataFormatString on your original column, the Value column inside the custom control will pick it up and format the filter values accordingly. Also, I have transferred the data type of the column that you are filtering to the Value column of the custom control. This will help the little RadGridView determine what kind of editor to show up when you begin edit, for example a date picker for DateTime columns. Finally, I have added four buttons two of them can be used to add or remove filters and the other two will communicate the changes you have made to the server. Here is the full source code of the DomainDataSourceFilteringControl. The XAML: <UserControl x:Class="PureServerSideFiltering.DomainDataSourceFilteringControl" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:telerikGrid="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.GridView" xmlns:telerik="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls" Width="300"> <Border x:Name="LayoutRoot" BorderThickness="1" BorderBrush="#FF8A929E" Padding="5" Background="#FFDFE2E5"> <Grid> <Grid.RowDefinitions> <RowDefinition Height="Auto"/> <RowDefinition Height="150"/> <RowDefinition Height="Auto"/> </Grid.RowDefinitions> <StackPanel Grid.Row="0" Margin="2" Orientation="Horizontal" HorizontalAlignment="Center"> <telerik:RadButton Name="addFilterButton" Click="OnAddFilterButtonClick" Content="Add Filter" Margin="2" Width="96"/> <telerik:RadButton Name="removeFilterButton" Click="OnRemoveFilterButtonClick" Content="Remove Filter" Margin="2" Width="96"/> </StackPanel> <telerikGrid:RadGridView Name="filtersGrid" Grid.Row="1" Margin="2" ItemsSource="{Binding FilterDescriptors}" AddingNewDataItem="OnFilterGridAddingNewDataItem" ColumnWidth="*" ShowGroupPanel="False" AutoGenerateColumns="False" CanUserResizeColumns="False" CanUserReorderColumns="False" CanUserFreezeColumns="False" RowIndicatorVisibility="Collapsed" IsFilteringAllowed="False" CanUserSortColumns="False"> <telerikGrid:RadGridView.Columns> <telerikGrid:GridViewComboBoxColumn DataMemberBinding="{Binding Operator}" UniqueName="Operator"/> <telerikGrid:GridViewDataColumn Header="Value" DataMemberBinding="{Binding Value.Value}" UniqueName="Value"/> </telerikGrid:RadGridView.Columns> </telerikGrid:RadGridView> <StackPanel Grid.Row="2" Margin="2" Orientation="Horizontal" HorizontalAlignment="Center"> <telerik:RadButton Name="filterButton" Click="OnApplyFiltersButtonClick" Content="Apply Filters" Margin="2" Width="96"/> <telerik:RadButton Name="clearButton" Click="OnClearFiltersButtonClick" Content="Clear Filters" Margin="2" Width="96"/> </StackPanel> </Grid> </Border> </UserControl> And the code-behind: using System; using System.Collections.Generic; using System.Linq; using System.Net; using System.Windows; using System.Windows.Controls; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Animation; using System.Windows.Shapes; using Telerik.Windows.Controls.GridView; using System.Windows.Data; using Telerik.Windows.Controls; using Telerik.Windows.Data; namespace PureServerSideFiltering { /// <summary> /// A custom filtering control capable of filtering purely server-side. /// </summary> public partial class DomainDataSourceFilteringControl : UserControl, IFilteringControl { // The main player here. DomainDataSource domainDataSource; // This is the name of the property that this column displays. private string dataMemberName; // This is the type of the property that this column displays. private Type dataMemberType; /// <summary> /// Identifies the <see cref="IsActive"/> dependency property. /// </summary> /// <remarks> /// The state of the filtering funnel (i.e. full or empty) is bound to this property. /// </remarks> public static readonly DependencyProperty IsActiveProperty = DependencyProperty.Register( "IsActive", typeof(bool), typeof(DomainDataSourceFilteringControl), new PropertyMetadata(false)); /// <summary> /// Gets or sets a value indicating whether the filtering is active. /// </summary> /// <remarks> /// Set this to true if you want to lit-up the filtering funnel. /// </remarks> public bool IsActive { get { return (bool)GetValue(IsActiveProperty); } set { SetValue(IsActiveProperty, value); } } /// <summary> /// Gets or sets the domain data source. /// We need this in order to work on its FilterDescriptors collection. /// </summary> /// <value>The domain data source.</value> public DomainDataSource DomainDataSource { get { return this.domainDataSource; } set { this.domainDataSource = value; } } public System.Windows.Data.FilterDescriptorCollection FilterDescriptors { get { return this.DomainDataSource.FilterDescriptors; } } public DomainDataSourceFilteringControl() { InitializeComponent(); } public void Prepare(GridViewBoundColumnBase column) { this.LayoutRoot.DataContext = this; if (this.DomainDataSource == null) { // Sorry, but we need a DomainDataSource. Can't do anything without it. return; } // This is the name of the property that this column displays. this.dataMemberName = column.GetDataMemberName(); // This is the type of the property that this column displays. // We need this in order to see which FilterOperators to feed to the combo-box column. this.dataMemberType = column.DataType; // We will use our magic Type extension method to see which operators are applicable for // this data type. You can go to the extension method body and see what it does. ((GridViewComboBoxColumn)this.filtersGrid.Columns["Operator"]).ItemsSource = this.dataMemberType.ApplicableFilterOperators(); // This is very nice as well. We will tell the Value column its data type. In this way // RadGridView will pick up the best editor according to the data type. For example, // if the data type of the value is DateTime, you will be editing it with a DatePicker. // Nice! ((GridViewDataColumn)this.filtersGrid.Columns["Value"]).DataType = this.dataMemberType; // Yet another nice feature. We will transfer the original DataFormatString (if any) to // the Value column. In this way if you have specified a DataFormatString for the original // column, you will see all filter values formatted accordingly. ((GridViewDataColumn)this.filtersGrid.Columns["Value"]).DataFormatString = column.DataFormatString; // This is important. Since our little filtersGrid will be bound to the entire collection // of this.domainDataSource.FilterDescriptors, we need to set a Telerik filter on the // grid so that it will display FilterDescriptor which are relevane to this column ONLY! Telerik.Windows.Data.FilterDescriptor columnFilter = new Telerik.Windows.Data.FilterDescriptor("PropertyPath" , Telerik.Windows.Data.FilterOperator.IsEqualTo , this.dataMemberName); this.filtersGrid.FilterDescriptors.Add(columnFilter); // We want to listen for this in order to activate and de-activate the UI funnel. this.filtersGrid.Items.CollectionChanged += this.OnFilterGridItemsCollectionChanged; } /// <summary> // Since the DomainDataSource is a little bit picky about adding uninitialized FilterDescriptors // to its collection, we will prepare each new instance with some default values and then // the user can change them later. Go to the event handler to see how we do this. /// </summary> void OnFilterGridAddingNewDataItem(object sender, GridViewAddingNewEventArgs e) { // We need to initialize the new instance with some values and let the user go on from here. System.Windows.Data.FilterDescriptor newFilter = new System.Windows.Data.FilterDescriptor(); // This is a must. It should know what member it is filtering on. newFilter.PropertyPath = this.dataMemberName; // Initialize it with one of the allowed operators. // TypeExtensions.ApplicableFilterOperators method for more info. newFilter.Operator = this.dataMemberType.ApplicableFilterOperators().First(); if (this.dataMemberType == typeof(DateTime)) { newFilter.Value.Value = DateTime.Now; } else if (this.dataMemberType == typeof(string)) { newFilter.Value.Value = "<enter text>"; } else if (this.dataMemberType.IsValueType) { // We need something non-null for all value types. newFilter.Value.Value = Activator.CreateInstance(this.dataMemberType); } // Let the user edit the new filter any way he/she likes. e.NewObject = newFilter; } void OnFilterGridItemsCollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e) { // We are active only if we have any filters define. In this case the filtering funnel will lit-up. this.IsActive = this.filtersGrid.Items.Count > 0; } private void OnApplyFiltersButtonClick(object sender, RoutedEventArgs e) { if (this.DomainDataSource.IsLoadingData) { return; } // Comment this if you want the popup to stay open after the button is clicked. this.ClosePopup(); // Since this.domainDataSource.AutoLoad is false, this will take into // account all filtering changes that the user has made since the last // Load() and pull the new data to the client. this.DomainDataSource.Load(); } private void OnClearFiltersButtonClick(object sender, RoutedEventArgs e) { if (this.DomainDataSource.IsLoadingData) { return; } // We want to remove ONLY those filters from the DomainDataSource // that this control is responsible for. this.DomainDataSource.FilterDescriptors .Where(fd => fd.PropertyPath == this.dataMemberName) // Only "our" filters. .ToList() .ForEach(fd => this.DomainDataSource.FilterDescriptors.Remove(fd)); // Bye-bye! // Comment this if you want the popup to stay open after the button is clicked. this.ClosePopup(); // After we did our housekeeping, get the new data to the client. this.DomainDataSource.Load(); } private void OnAddFilterButtonClick(object sender, RoutedEventArgs e) { if (this.DomainDataSource.IsLoadingData) { return; } // Let the user enter his/or her requirements for a new filter. this.filtersGrid.BeginInsert(); this.filtersGrid.UpdateLayout(); } private void OnRemoveFilterButtonClick(object sender, RoutedEventArgs e) { if (this.DomainDataSource.IsLoadingData) { return; } // Find the currently selected filter and destroy it. System.Windows.Data.FilterDescriptor filterToRemove = this.filtersGrid.SelectedItem as System.Windows.Data.FilterDescriptor; if (filterToRemove != null && this.DomainDataSource.FilterDescriptors.Contains(filterToRemove)) { this.DomainDataSource.FilterDescriptors.Remove(filterToRemove); } } private void ClosePopup() { System.Windows.Controls.Primitives.Popup popup = this.ParentOfType<System.Windows.Controls.Primitives.Popup>(); if (popup != null) { popup.IsOpen = false; } } } } Finally, we need to tell RadGridViews Columns to use this custom control instead of the default one. Here is how to do it: using System; using System.Collections.Generic; using System.Linq; using System.Net; using System.Windows; using System.Windows.Controls; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Animation; using System.Windows.Shapes; using System.Windows.Data; using Telerik.Windows.Data; using Telerik.Windows.Controls; using Telerik.Windows.Controls.GridView; namespace PureServerSideFiltering { public partial class MainPage : UserControl { public MainPage() { InitializeComponent(); this.grid.AutoGeneratingColumn += this.OnGridAutoGeneratingColumn; // Uncomment this if you want the DomainDataSource to start pre-filtered. // You will notice how our custom filtering controls will correctly read this information, // populate their UI with the respective filters and lit-up the funnel to indicate that // filtering is active. Go ahead and try it. this.employeesDataSource.FilterDescriptors.Add(new System.Windows.Data.FilterDescriptor("Title", System.Windows.Data.FilterOperator.Contains, "Assistant")); this.employeesDataSource.FilterDescriptors.Add(new System.Windows.Data.FilterDescriptor("HireDate", System.Windows.Data.FilterOperator.IsGreaterThan, new DateTime(1998, 12, 31))); this.employeesDataSource.FilterDescriptors.Add(new System.Windows.Data.FilterDescriptor("HireDate", System.Windows.Data.FilterOperator.IsLessThanOrEqualTo, new DateTime(1999, 12, 31))); this.employeesDataSource.Load(); } /// <summary> /// First of all, we will need to replace the default filtering control /// of each column with out custom filtering control DomainDataSourceFilteringControl /// </summary> private void OnGridAutoGeneratingColumn(object sender, GridViewAutoGeneratingColumnEventArgs e) { GridViewBoundColumnBase dataColumn = e.Column as GridViewBoundColumnBase; if (dataColumn != null) { // We do not like ugly dates. if (dataColumn.DataType == typeof(DateTime)) { dataColumn.DataFormatString = "{0:d}"; // Short date pattern. // Notice how this format will be later transferred to the Value column // of the grid that we have inside the DomainDataSourceFilteringControl. } // Replace the default filtering control with our. dataColumn.FilteringControl = new DomainDataSourceFilteringControl() { // Let the control know about the DDS, after all it will work directly on it. DomainDataSource = this.employeesDataSource }; // Finally, lit-up the filtering funnel through the IsActive dependency property // in case there are some filters on the DDS that match our column member. string dataMemberName = dataColumn.GetDataMemberName(); dataColumn.FilteringControl.IsActive = this.employeesDataSource.FilterDescriptors .Where(fd => fd.PropertyPath == dataMemberName) .Count() > 0; } } } } The best part is that we are not only writing filters for the DomainDataSource we can read and load them. If the DomainDataSource has some pre-existing filters (like I have created in the code above), our control will read them and will populate its UI accordingly. Even the filtering funnel will light-up! Remember, the funnel is controlled by the IsActive property of our control. While this is just a basic implementation, the source code is absolutely yours and you can take it from here and extend it to match your specific business requirements. Below the main grid there is another debug grid. With its help you can monitor what filter descriptors are added and removed to the domain data source. Download Source Code. (You will have to have the AdventureWorks sample database installed on the default SQLExpress instance in order to run it.) Enjoy!Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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Nested class - calling the nested class from the parent class

- by insanepaul

I have a class whereby a method calls a nested class. I want to access the parent class properties from within the nested class. public class ParentClass { private x; private y; private z; something.something = new ChildClass public class ChildClass { need to get x, y and z; } } How do I access x,y and z from within the child class. Something to do with referencing the parent class but how? }

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How to set tooltips on ListView Subitems in .Net

- by Ryan

I am trying to set the tool tip text for some of my subitems in my listview control. I am unable to get the tool tip to show up. Anyone have any suggestions? Private _timer As Timer Private Sub Timer() If _timer Is Nothing Then _timer = New Timer _timer.Interval = 500 AddHandler _timer.Tick, AddressOf TimerTick _timer.Start() End If End Sub Private Sub TimerTick(ByVal sender As Object, ByVal e As EventArgs) _timer.Enabled = False End Sub Protected Overrides Sub OnMouseMove(ByVal e As System.Windows.Forms.MouseEventArgs) If Not _timer.Enabled Then Dim item = Me.HitTest(e.X, e.Y) If Not item Is Nothing AndAlso Not item.SubItem Is Nothing Then If item.SubItem.Text = "" Then Dim tip = New ToolTip Dim p = item.SubItem.Bounds tip.ToolTipTitle = "Status" tip.ShowAlways = True tip.Show("FOO", Me, e.X, e.Y, 1000) _timer.Enabled = True End If End If End If MyBase.OnMouseMove(e) End Sub

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insert/update/delete with xml in .net 3.5

- by Radhi

Hello guys, i have "UserProfile" in my site which we have stored in xml fromat of xml is as below <UserProfile xmlns=""> <BasicInfo> <Title value="Basic Details" /> <Fields> <UserId title="UserId" display="No" right="Public" value="12" /> <EmailAddress title="Email Address" display="Yes" right="Public" value="[email protected]" /> <FirstName title="First Name" display="Yes" right="Public" value="Radhi" /> <LastName title="Last Name" display="Yes" right="Public" value="Patel" /> <DisplayName title="Display Name" display="Yes" right="Public" value="Radhi Patel" /> <RegistrationStatusId title="RegistrationStatusId" display="No" right="Public" value="10" /> <RegistrationStatus title="Registration Status" display="Yes" right="Private" value="Registered" /> <CountryName title="Country" display="Yes" right="Public" value="India" /> <StateName title="State" display="Yes" right="Public" value="Maharashtra" /> <CityName title="City" display="Yes" right="Public" value="Mumbai" /> <Gender title="Gender" display="Yes" right="Public" value="FeMale" /> <CreatedBy title="CreatedBy" display="No" right="Public" value="0" /> <CreatedOn title="CreatedOn" display="No" right="Public" value="Nov 27 2009 3:08PM " /> <ModifiedBy title="ModifiedBy" display="No" right="Public" value="12" /> <ModifiedOn title="ModifiedOn" display="No" right="Public" value="Feb 18 2010 1:43PM " /> <LogInStatusId title="LogInStatusId" display="No" right="Public" value="1" /> <LogInStatus title="LogIn Status" display="Yes" right="Private" value="Free" /> <ProfileImagePath title="Profile Pic" display="No" right="Public" value="~/Images/96.jpg" /> </Fields> </BasicInfo> <PersonalInfo> <Title value="Personal Details" /> <Fields> <Nickname title="Nick Name" display="Yes" right="Public" value="Rahul" /> <NativeLocation title="Native" display="Yes" right="Public" value="Amreli" /> <DateofAnniversary title="Anniversary Dt." display="Yes" right="Public" value="12/29/2008" /> <BloodGroupId title="BloodGroupId" display="No" right="Public" value="25" /> <BloodGroupName title="Blood Group" display="Yes" right="Public" value="25" /> <MaritalStatusId title="MaritalStatusId" display="No" right="Public" value="34" /> <MaritalStatusName title="Marital status" display="Yes" right="Private" value="34" /> <DateofDeath title="Death dt" display="Yes" right="Private" value="" /> <CreatedBy title="CreatedBy" display="No" right="Public" value="12" /> <CreatedOn title="CreatedOn" display="No" right="Public" value="Jan 6 2010 2:59PM " /> <ModifiedBy title="ModifiedBy" display="No" right="Public" value="12" /> <ModifiedOn title="ModifiedOn" display="No" right="Public" value="3/10/2010 5:34:14 PM" /> </Fields> </PersonalInfo> <FamilyInfo> <Title value="Family Details" /> <Fields> <GallantryHistory title="Gallantry History" display="Yes" right="Public" value="Gallantry history rahul" /> <Ethinicity title="Ethinicity" display="Yes" right="Public" value="ethnicity rahul" /> <KulDev title="KulDev" display="Yes" right="Public" value="Krishna" /> <KulDevi title="KulDevi" display="Yes" right="Public" value="Khodiyar" /> <Caste title="Caste" display="Yes" right="Private" value="Brhamin" /> <SunSignId title="SunSignId" display="No" right="Public" value="20" /> <SunSignName title="SunSignName" display="Yes" right="Public" value="Scorpio" /> <CreatedBy title="CreatedBy" display="No" right="Public" value="12" /> <CreatedOn title="CreatedOn" display="No" right="Public" value="Dec 29 2009 4:59PM " /> <ModifiedBy title="ModifiedBy" display="No" right="Public" value="12" /> <ModifiedOn title="ModifiedOn" display="No" right="Public" value="3/10/2010 6:29:56 PM" /> </Fields> </FamilyInfo> <HobbyInfo> <Title value="Hobbies/Interests" /> <Fields> <AbountMe title="Abount Me" display="Yes" right="Public" value="Naughty.... " /> <Hobbies title="Hobbies" display="Yes" right="Public" value="Dance, Music, decoration, Shopping" /> <Food title="Food" display="Yes" right="Public" value="Maxican salsa, Pizza, Khoya kaju " /> <Movies title="Movies" display="Yes" right="Public" value="day after tommorrow. wake up sid. avatar" /> <Music title="Music" display="Yes" right="Public" value="Chu kar mere man ko... wake up sid songs, slow music, apgk songs" /> <TVShows title="TV Shows" display="Yes" right="Public" value="business bazzigar, hanah montana" /> <Books title="Books" display="Yes" right="Public" value="mystry novels" /> <Sports title="Sports" display="Yes" right="Public" value="Badminton" /> <Will title="Will" display="Yes" right="Public" value="do photography, to have my own super home... and i can decorate it like anything..." /> <FavouriteQuotes title="Favourite Quotes" display="Yes" right="Public" value="Live like a king nothing lasts forever. not even your troubles smooth sea do not makes skillfull sailors" /> <CremationPrefernces title="Cremation Prefernces" display="Yes" right="Public" value="" /> <CreatedBy title="CreatedBy" display="No" right="Public" value="12" /> <CreatedOn title="CreatedOn" display="No" right="Public" value="Feb 24 2010 2:13PM " /> <ModifiedBy title="ModifiedBy" display="No" right="Public" value="12" /> <ModifiedOn title="ModifiedOn" display="No" right="Public" value="Mar 2 2010 4:34PM " /> </Fields> </HobbyInfo> <PermenantAddr> <Title value="Permenant Address" /> <Fields> <Address title="Address" display="Yes" right="Public" value="Test Entry" /> <CityId title="CityId" display="No" right="Public" value="93" /> <CityName title="City" display="Yes" right="Public" value="Chennai" /> <StateId title="StateId" display="No" right="Public" value="89" /> <StateName title="State" display="Yes" right="Public" value="Tamil Nadu" /> <CountryId title="CountryId" display="No" right="Public" value="108" /> <CountryName title="Country" display="Yes" right="Public" value="India" /> <ZipCode title="ZipCode" display="Yes" right="Private" value="360019" /> <CreatedBy title="CreatedBy" display="No" right="Public" value="12" /> <CreatedOn title="CreatedOn" display="No" right="Public" value="Jan 6 2010 1:29PM " /> <ModifiedBy title="ModifiedBy" display="No" right="Public" value="0" /> <ModifiedOn title="ModifiedOn" display="No" right="Public" value=" " /> </Fields> </PermenantAddr> <PresentAddr> <Title value="Present Address" /> <Fields> <Address title="Ethinicity" display="Yes" right="Public" value="" /> <CityId title="CityId" display="No" right="Public" value="" /> <CityName title="City" display="Yes" right="Public" value="" /> <StateId title="StateId" display="No" right="Public" value="" /> <StateName title="State" display="Yes" right="Public" value="" /> <CountryId title="CountryId" display="No" right="Public" value="" /> <CountryName title="Country" display="Yes" right="Public" value="" /> <ZipCode title="ZipCode" display="Yes" right="Public" value="" /> <CreatedBy title="CreatedBy" display="No" right="Public" value="" /> <CreatedOn title="CreatedOn" display="No" right="Public" value="" /> <ModifiedBy title="ModifiedBy" display="No" right="Public" value="" /> <ModifiedOn title="ModifiedOn" display="No" right="Public" value="" /> </Fields> </PresentAddr> <ContactInfo> <Title value="Contact Details" /> <Fields> <DayPhoneNo title="Day Phone" display="Yes" right="Public" value="" /> <NightPhoneNo title="Night Phone" display="Yes" right="Public" value="" /> <MobileNo title="Mobile No" display="Yes" right="Private" value="" /> <FaxNo title="Fax No" display="Yes" right="CUG" value="" /> <CreatedBy title="CreatedBy" display="No" right="Public" value="12" /> <CreatedOn title="CreatedOn" display="No" right="Public" value="Jan 5 2010 12:37PM " /> <ModifiedBy title="ModifiedBy" display="No" right="Public" value="12" /> <ModifiedOn title="ModifiedOn" display="No" right="Public" value="Feb 17 2010 1:37PM " /> </Fields> </ContactInfo> <EmailInfo> <Title value="Alternate Email Addresses" /> <Fields /> </EmailInfo> <AcademicInfo> <Title value="Education Details" /> <Fields> <Record right="Public"> <Education title="Education" display="Yes" value="Full Attendance" /> <Institute title="Institute" display="Yes" value="Attendance" /> <PassingYear title="Passing Year" display="Yes" value="2000" /> <IsActive title="IsActive" display="No" value="false" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Dec 31 2009 12:41PM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Dec 31 2009 12:41PM " /> </Record> <Record right="Public"> <Education title="Education" display="Yes" value="D.C.E." /> <Institute title="Institute" display="Yes" value="G.P.G" /> <PassingYear title="Passing Year" display="Yes" value="2005" /> <IsActive title="IsActive" display="No" value="true" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Dec 31 2009 12:45PM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Dec 31 2009 12:45PM " /> </Record> <Record right="Public"> <Education title="Education" display="Yes" value="MCSE" /> <Institute title="Institute" display="Yes" value="MCSE" /> <PassingYear title="Passing Year" display="Yes" value="2009" /> <IsActive title="IsActive" display="No" value="true" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Dec 31 2009 6:12PM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Mar 2 2010 4:33PM " /> </Record> <Record right="Public"> <Education title="Education" display="Yes" value="H.S.C." /> <Institute title="Institute" display="Yes" value="G.H.S.E.B." /> <PassingYear title="Passing Year" display="Yes" value="2002" /> <IsActive title="IsActive" display="No" value="true" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Dec 31 2009 6:17PM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Dec 31 2009 6:17PM " /> </Record> <Record right="Public"> <Education title="Education" display="Yes" value="S.S.C." /> <Institute title="Institute" display="Yes" value="G.S.E.B." /> <PassingYear title="Passing Year" display="Yes" value="2000" /> <IsActive title="IsActive" display="No" value="true" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Dec 31 2009 6:17PM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Dec 31 2009 6:17PM " /> </Record> </Fields> </AcademicInfo> <AchievementInfo> <Title value="Achievement Details" /> <Fields> <Record right="Public"> <Awards title="Award" display="Yes" value="Test Entry" /> <FieldOfAward title="Field Of Award" display="Yes" value="Test Entry" /> <Tournament title="Tournament" display="Yes" value="Test Entry" /> <AwardDescription title="Description" display="Yes" value="Test Entry" /> <AwardYear title="Award Year" display="Yes" value="2002" /> <IsActive title="IsActive" display="No" value="true" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Dec 31 2009 3:51PM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Dec 31 2009 3:51PM " /> </Record> <Record right="Public"> <Awards title="Award" display="Yes" value="Test Entry" /> <FieldOfAward title="Field Of Award" display="Yes" value="Test Entry" /> <Tournament title="Tournament" display="Yes" value="Test Entry" /> <AwardDescription title="Description" display="Yes" value="Test Entry" /> <AwardYear title="Award Year" display="Yes" value="2005" /> <IsActive title="IsActive" display="No" value="true" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Jan 8 2010 10:19AM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Jan 8 2010 10:19AM " /> </Record> <Record right="Public"> <Awards title="Award" display="Yes" value="Test Entry3" /> <FieldOfAward title="Field Of Award" display="Yes" value="Test Entry3" /> <Tournament title="Tournament" display="Yes" value="Test Entry3" /> <AwardDescription title="Description" display="Yes" value="Test Entry3" /> <AwardYear title="Award Year" display="Yes" value="2007" /> <IsActive title="IsActive" display="No" value="true" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Dec 31 2009 11:47AM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Dec 31 2009 11:47AM " /> </Record> <Record right="Public"> <Awards title="Award" display="Yes" value="Test Entry4" /> <FieldOfAward title="Field Of Award" display="Yes" value="Test Entry4" /> <Tournament title="Tournament" display="Yes" value="Test Entry4" /> <AwardDescription title="Description" display="Yes" value="Test Entry3" /> <AwardYear title="Award Year" display="Yes" value="2000" /> <IsActive title="IsActive" display="No" value="false" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Dec 31 2009 11:47AM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Dec 31 2009 11:47AM " /> </Record> </Fields> </AchievementInfo> <ProfessionalInfo> <Title value="Professional Details" /> <Fields> <Record right="Public"> <Occupation title="Occupation" display="Yes" value="Test Entry" /> <Organization title="Organization" display="Yes" value="Test Entry" /> <ProjectsDescription title="Description" display="Yes" value="Test Entry" /> <Duration title="Duration" display="Yes" value="26" /> <IsActive title="IsActive" display="No" value="false" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Jan 4 2010 3:01PM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Jan 4 2010 3:01PM " /> </Record> <Record right="Public"> <Occupation title="Occupation" display="Yes" value="Test Entry" /> <Organization title="Organization" display="Yes" value="Test Entry" /> <ProjectsDescription title="Description" display="Yes" value="Test Entry" /> <Duration title="Duration" display="Yes" value="10" /> <IsActive title="IsActive" display="No" value="false" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Jan 4 2010 3:01PM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Jan 4 2010 3:01PM " /> </Record> <Record right="Public"> <Occupation title="Occupation" display="Yes" value="Test Entry" /> <Organization title="Organization" display="Yes" value="Test Entry" /> <ProjectsDescription title="Description" display="Yes" value="Test Entry" /> <Duration title="Duration" display="Yes" value="15" /> <IsActive title="IsActive" display="No" value="false" /> <CreatedBy title="CreatedBy" display="No" value="12" /> <CreatedOn title="CreatedOn" display="No" value="Jan 4 2010 3:01PM " /> <ModifiedBy title="ModifiedBy" display="No" value="12" /> <ModifiedOn title="ModifiedOn" display="No" value="Jan 4 2010 3:01PM " /> </Record> </Fields> </ProfessionalInfo> </UserProfile> now for tags like PersonalInfo,contactInfo,Address there will be only one record, but for tags like "OtherInfo","academicInfo","ProfessionalInfo" there will be multiple records so in xml there are tags for that. now to edit tags having one record only for one user i did coding like: private void FillFamilyInfoControls(XElement rootElement) { ddlSunsign.DataBind(); XElement parentElement; string xPathQuery = "FamilyInfo/Fields"; parentElement = rootElement.XPathSelectElement(xPathQuery); txtGallantryHistory.Text = parentElement.Element("GallantryHistory").Attribute("value").Value; txtEthinicity.Text = parentElement.Element("Ethinicity").Attribute("value").Value; txtKulDev.Text = parentElement.Element("KulDev").Attribute("value").Value; txtKulDevi.Text = parentElement.Element("KulDevi").Attribute("value").Value; txtCaste.Text = parentElement.Element("Caste").Attribute("value").Value; ddlSunsign.SelectedValue = parentElement.Element("SunSignId").Attribute("value").Value; ddlSunsign.SelectedItem.Text = parentElement.Element("SunSignName").Attribute("value").Value; } private XElement UpdateFamilyInfoXML(XElement rootElement) { XElement parentElement; string xPathQuery = "FamilyInfo/Fields"; parentElement = rootElement.XPathSelectElement(xPathQuery); parentElement.Element("GallantryHistory").Attribute("value").Value = txtGallantryHistory.Text; parentElement.Element("Ethinicity").Attribute("value").Value = txtEthinicity.Text; parentElement.Element("KulDev").Attribute("value").Value = txtKulDev.Text; parentElement.Element("KulDevi").Attribute("value").Value = txtKulDevi.Text; parentElement.Element("Caste").Attribute("value").Value = txtCaste.Text; parentElement.Element("SunSignId").Attribute("value").Value = ddlSunsign.SelectedItem.Value; parentElement.Element("SunSignName").Attribute("value").Value = ddlSunsign.SelectedItem.Text; parentElement.Element("ModifiedBy").Attribute("value").Value = UMSession.CurrentLoggedInUser.UserId.ToString(); parentElement.Element("ModifiedOn").Attribute("value").Value = System.DateTime.Now.ToString(); return rootElement; //rootElement.XPathSelectElement(xPathQuery) = parentElement; } these 2 functions i have used to update xml and to get data from xml and fill into controls. but for the tags where there are multiple records... i am not able to find any solution /control using which i an do it easily. coz my field's value is in attribute named "Value" when in the examples i saw its between opening and closing tag.. i have 2 methods to do so. 1 . i make one page to edit a single record and pass id of record to that page on editing. open the page in iframe on same page to edit and in page_load get data from database for id passed and fill it in control. 2 . i store xml on server as physical file and use it in page i opened in iframe to edit the record. so i am confused... can anybody please guide me that what shpould i do to let user provide interface to edit this xml data/user profile ?

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.NET WebClient tag property, or keeping track of downloads ?

- by GX

Hello, I am trying to implement an Asynchronous file download from a web server using private void btnDownload_Click(object sender, EventArgs e) { WebClient webClient = new WebClient(); webClient.Credentials = new NetworkCredential("test", "test"); webClient.DownloadFileCompleted += new AsyncCompletedEventHandler(Completed); webClient.DownloadProgressChanged += new DownloadProgressChangedEventHandler(ProgressChanged); webClient.DownloadFileAsync(new Uri("ftp://2.1.1.1:17865/zaz.txt"), @"c:\myfile.txt"); } private void ProgressChanged(object sender, DownloadProgressChangedEventArgs e) { progressBar1.Value = e.ProgressPercentage; } private void Completed(object sender, AsyncCompletedEventArgs e) { MessageBox.Show("Download completed!"); } Now the download works fine, what I would like to know is the following: assuming that I will have more than 1 download at a time, what is the best way to keep track of each download and report progress separately ? I was looking for a tag property of the WebClient, but could not find one. Thank you

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Flex actionscript extending DateChooser, events in calendar

- by Nemi

ExtendedDateChooser class is great solution for simple event calendar used in my flex project. You can find it if google for "Adding-Calendar-Event-Entries-to-the-Flex-DateChooser-Component" with a link of updated solution in comments of the post. I posted files below. Problem in that calendar is text events are missing when month is changed. Is there updateCompleted event in Actionscript just like in dateChooser flex component? Like in: <mx:DateChooser id="dc" updateCompleted="goThroughDateChooserCalendarLayoutAndSetEventsInCalendarAgain()"</mx> When scroll event is added, which is available in Actionscript, it gets dispatched but after updateDisplayList() is fired, so didn't manage to answer, why are calendar events erased? Any suggestions, what to add in code, maybe override some function? ExtendedDateChooserClass.mxml <?xml version='1.0' encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" xmlns:mycomp="cyberslingers.controls.*" layout="absolute" creationComplete="init()"> <mx:Script> <![CDATA[ import cyberslingers.controls.ExtendedDateChooser; import mx.rpc.events.ResultEvent; import mx.rpc.events.FaultEvent; import mx.controls.Alert; public var mycal:ExtendedDateChooser = new ExtendedDateChooser(); // collection to hold date, data and label [Bindable] public var dateCollection:XMLList = new XMLList(); private function init():void { eventList.send(); } private function readCollection(event:ResultEvent):void { dateCollection = event.result.calendarevent; //Position and size the calendar mycal.width = 400; mycal.height = 400; //Add the data from the XML file to the calendar mycal.dateCollection = dateCollection; //Add the calendar to the canvas this.addChild(mycal); } private function readFaultHandler(event:FaultEvent):void { Alert.show(event.fault.message, "Could not load data"); } ]]> </mx:Script> <mx:HTTPService id="eventList" url="data.xml" resultFormat="e4x" result="readCollection(event);" fault="readFaultHandler(event);"/> </mx:Application> ExtendedDateChooser.as package cyberslingers.controls { import flash.events.Event; import flash.events.TextEvent; import mx.collections.ArrayCollection; import mx.controls.Alert; import mx.controls.CalendarLayout; import mx.controls.DateChooser; import mx.core.UITextField; import mx.events.FlexEvent; public class ExtendedDateChooser extends DateChooser { public function ExtendedDateChooser() { super(); this.addEventListener(TextEvent.LINK, linkHandler); this.addEventListener(FlexEvent.CREATION_COMPLETE, addEvents); } //datasource public var dateCollection:XMLList = new XMLList(); //-------------------------------------- // Add events //-------------------------------------- /** * Loop through calendar control and add event links * @param e */ private function addEvents(e:Event):void { // loop through all the calendar children for(var i:uint = 0; i < this.numChildren; i++) { var calendarObj:Object = this.getChildAt(i); // find the CalendarLayout object if(calendarObj.hasOwnProperty("className")) { if(calendarObj.className == "CalendarLayout") { var cal:CalendarLayout = CalendarLayout(calendarObj); // loop through all the CalendarLayout children for(var j:uint = 0; j < cal.numChildren; j++) { var dateLabel:Object = cal.getChildAt(j); // find all UITextFields if(dateLabel.hasOwnProperty("text")) { var day:UITextField = UITextField(dateLabel); var dayHTML:String = day.text; day.selectable = true; day.wordWrap = true; day.multiline = true; day.styleName = "EventLabel"; //TODO: passing date as string is not ideal, tough to validate //Make sure to add one to month since it is zero based var eventArray:Array = dateHelper((this.displayedMonth+1) + "/" + dateLabel.text + "/" + this.displayedYear); if(eventArray.length > 0) { for(var k:uint = 0; k < eventArray.length; k++) { dayHTML += "<br><A HREF='event:" + eventArray[k].data + "' TARGET=''>" + eventArray[k].label + "</A>"; } day.htmlText = dayHTML; } } } } } } } //-------------------------------------- // Events //-------------------------------------- /** * Handle clicking text link * @param e */ private function linkHandler(event:TextEvent):void { // What do we want to do when user clicks an entry? Alert.show("selected: " + event.text); } //-------------------------------------- // Helpers //-------------------------------------- /** * Build array of events for current date * @param string - current date * */ private function dateHelper(renderedDate:String):Array { var result:Array = new Array(); for(var i:uint = 0; i < dateCollection.length(); i++) { if(dateCollection[i].date == renderedDate) { result.push(dateCollection[i]); } } return result; } } } data.xml <?xml version="1.0" encoding="utf-8"?> <rss> <calendarevent> <date>8/22/2009</date> <data>This is a test 1</data> <label>Stephens Test 1</label> </calendarevent> <calendarevent> <date>8/23/2009</date> <data>This is a test 2</data> <label>Stephens Test 2</label> </calendarevent> </rss>

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Brute force characters into a textbox in c#

- by Fred Dunly

Hey everyone, I am VERY new to programming and the only language I know is C# So I will have to stick with that... I want to make a program that "test passwords" to see how long they would take to break with a basic brute force attack. So what I did was make 2 text boxes. (textbox1 and textbox2) and wrote the program so if the text boxes had the input, a "correct password" label would appear, but i want to write the program so that textbox2 will run a brute force algorithm in it, and when it comes across the correct password, it will stop. I REALLY need help, and if you could just post my attached code with the correct additives in it that would be great. The program so far is extremely simple, but I am very new to this, so. Thanks in advance. private void textBox2_TextChanged(object sender, EventArgs e) { } private void button1_Click(object sender, EventArgs e) { if (textBox2.Text == textBox1.Text) { label1.Text = "Password Correct"; } else { label1.Text = "Password Wrong"; } } private void label1_Click(object sender, EventArgs e) { } } } `

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Auto increment column i JDO, GAE

- by Viktor

Hi, I have a data class with some fields, one is a URL that I consider the PK, if I add a new item (do a new sync) and save it it should overwrite the item in the database if it's the same URL. But I also need a "normal" Long id that is incremented for every object in the database and for this one I always get null unless I tags it as a PK, how can a get this incrementation but not have the column as my PK? @Persistent(valueStrategy=IdGeneratorStrategy.IDENTITY) private Long _id; @Persistent private String _title; @PrimaryKey @Persistent private String _url; /Viktor

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Blackberry - Exception when sending SMS programmatically

- by user213199

Hello all, I am developing a Blackberry application. I am trying to send SMS programmatically to GSM number. I have gone through many queries and answers related to that and finally added the code for that as below. When the code tries to execute sending some text message to the particular mobile number, it doesn't send and throws exception as "blocking operation not permitted on event dispatch thread". So i created a separate background thread where i put the SMS code and running the code now. But still observing the same exception. Could someone please suggest what am i doing wrong (or) how to do that? class DummyFirst extends MainScreen { private Bitmap background; private VerticalFieldManager _container; private VerticalFieldManager mainVerticalManager; private HorizontalFieldManager horizontalFldManager; private BackGroundThread _thread; CustomControl buttonControl1; public DummyFirst() { super(); LabelField appTitle = new LabelField("Dummy App"); setTitle(appTitle); background = Bitmap.getBitmapResource("HomeBack.png"); _container = new VerticalFieldManager(Manager.NO_VERTICAL_SCROLL | Manager.NO_VERTICAL_SCROLLBAR) { protected void paint(Graphics g) { // Instead of these next two lines, draw your bitmap int y = DummyFirst.this.getMainManager() .getVerticalScroll(); g.clear(); g.drawBitmap(0, 0, background.getWidth(), background .getHeight(), background, 0, 0); super.paint(g); } protected void sublayout(int maxWidth, int maxHeight) { int width = background.getWidth(); int height = background.getHeight(); super.sublayout(width, height); setExtent(width, height); } }; mainVerticalManager = new VerticalFieldManager( Manager.NO_VERTICAL_SCROLL | Manager.NO_VERTICAL_SCROLLBAR) { protected void sublayout(int maxWidth, int maxHeight) { int width = background.getWidth(); int height = background.getHeight(); super.sublayout(width, height); setExtent(width, height); } }; HorizontalFieldManager horizontalFldManager = new HorizontalFieldManager(Manager.USE_ALL_WIDTH); buttonControl1 = new CustomControl("Send", ButtonField.CONSUME_CLICK, 83, 15); horizontalFldManager.add(buttonControl1); this.setStatus(horizontalFldManager); FieldListener listner = new FieldListener(); buttonControl1.setChangeListener(listner); _container.add(mainVerticalManager); this.add(_container); } class FieldListener implements FieldChangeListener { public void fieldChanged(Field f, int context) { if (f == buttonControl1) { _thread = new BackGroundThread(); _thread.start(); } } } private class BackGroundThread extends Thread { public BackGroundThread() { /*** initialize parameters in constructor *****/ } public void run() { // UiApplication.getUiApplication().invokeLater(new Runnable() UiApplication.getUiApplication().invokeLater(new Runnable() { public void run() { try { MessageConnection msgConn = (MessageConnection) Connector .open("sms://:0"); Message msg = msgConn .newMessage( MessageConnection.TEXT_MESSAGE); TextMessage txtMsg = (TextMessage) msg; String msgAdr = "sms://+919861348735"; txtMsg.setAddress(msgAdr); txtMsg.setPayloadText("Test Message"); // here exception is thrown msgConn.send(txtMsg); System.out.println("Sending" + " SMS success !!!"); } catch (Exception e) { System.out.println(e.getMessage()); e.printStackTrace(); } } // run }); } } public boolean onClose() { System.out.println("close event called, request to be" + " in the backgroud...."); UiApplication.getUiApplication().requestBackground(); return true; } } I resolved this issue by creating a separate thread and then not using Port etc. Here it is: SMSThread smsthread = new SMSThread("Some message",mobNumber); smsthread.start(); class SMSThread extends Thread { Thread myThread; MessageConnection msgConn; String message; String mobilenumber; public SMSThread( String textMsg, String mobileNumber ) { message = textMsg; mobilenumber = mobileNumber; } public void run() { try { msgConn = (MessageConnection) Connector.open("sms://+"+ mobilenumber); TextMessage text = (TextMessage) msgConn.newMessage(MessageConnection.TEXT_MESSAGE); text.setPayloadText(message); msgConn.send(text); msgConn.close(); } catch (Exception e) { System.out.println("Exception: " + e); } } }

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C# DataGridViewComboBoxCell setting value manually, value not valid

- by Jay

Hi, here is my code: private class Person { private string myName; private int myValue; public Person(string name, int value) { myName = name; myValue = value; } public override string ToString() { return myName; } public string Name { get { return myName; } set { myName = value; } } public int Value { get { return myValue; } set { myValue = value; } } } I use it to fill a DataGridViewComboBoxCell like this: myDataGridViewComboBoxCell.ValueMember = "Value"; myDataGridViewComboBoxCell.DisplayMember = "Name"; myDataGridViewComboBoxCell.Items.Add(new Person("blabla", someNumber)); all I want to do now is to select a person: myDataGridViewComboBoxCell.Value = someNumber; but keep getting "value is not valid"-error. Any Idea why? When I select an Item in my program I can see the right Value (someNumber) so Display and ValueMember are set correctly...

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Avoiding unsafe cast for generic situation involving runtime passing of class

- by Bart van Heukelom

public class AutoKeyMap<K,V> { public interface KeyGenerator<K> { public K generate(); } private KeyGenerator<K> generator; public AutoKeyMap(Class<K> keyType) { // WARNING: Unchecked cast from AutoKeyMap.IntKeyGen to AutoKeyMap.KeyGenerator<K> if (keyType == Integer.class) generator = (KeyGenerator<K>) new IntKeyGen(); else throw new RuntimeException("Cannot generate keys for " + keyType); } public void put(V value) { K key = generator.generate(); ... } private static class IntKeyGen implements KeyGenerator<Integer> { private final AtomicInteger ai = new AtomicInteger(1); @Override public Integer generate() { return ai.getAndIncrement(); } } } In the code sample above, what is the correct way to prevent the given warning, without adding a @SuppressWarnings, if any?

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how does public key cryptography work

- by rap-uvic

Hello, What I understand about RSA is that Alice can create a public and a private key combination, and then send the public key over to Bob. And then afterward Bob can encrypt something using the public key and Alice will use the public and private key combo to decrypt it. However, how can Alice encrypt something to be sent over to Bob? How would Bob decrypt it? I ask because I'm curious how when I log onto my banking site, my bank sends me data such as my online statements. How does my browser decrypt that information? I don't have the private key.

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