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  • IIS Browser caching not working

    - by Karthik
    Hi, I have enabled caching in IIS 6 for all our static images and CSS(by right clicking on those folders in IIS and enabled Content Expiration after 30 days under HTTP Headers). When I run Google PageSpeed, and look at the resources tab, the status of those images and css shows up as 200, but I was expecting a 304(not modified). When I checked Yahoo.com in Pagespeed, all its images have a 304 status. So my caching is not working? or is this how IIS content expiration works. Any help would be appreciated.

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  • System.exit(0) in java

    - by Ram
    I am writing an application program in java. If i need to exit from the application can i use system.exit or should i use some other method, which is good practice. If calling system.exit is not good practice then tell the reason and tell the alternative way to exit from the application.

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  • How do I figure out which SOC or SDK board to use?

    - by Ram Bhat
    Hey guys Basically I'm working on a model of an automated vacuum cleaner. I currently have made software simulation of the same. How do I figure out which SOC or SDK board to use for the hardware implementation? My code is mostly written in C. Will this be compatible with the sdk provided by board manufacturers? How do i know what clock speed,memory etc the hardware will need? I'm a software guy and have only basic knowledge about practical hardware implementations. Have some experience in programming the 8086 to carry out basic tasks.

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  • How to determine if an event is already subscribed

    - by Ram
    Hi, In my .NET application I am subscribing to events from another class. The subscription is conditional. I am subscribing to events when the control is visible and de-subscribing it when it become invisible. However in some conditions I do not want to de-subscribe the event even if the control is not visible as I want the result of an operation which is happening on background thread . Is there any way through which I can determine if a that class has already subscribed to that event. I know we can do it in the class which will raise that event by checking event with null but I don not know how to do it in a class which will subscribe to that event.

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  • Generics vs inheritance (whenh no collection classes are involved)

    - by Ram
    This is an extension of this questionand probably might even be a duplicate of some other question(If so, please forgive me). I see from MSDN that generics are usually used with collections The most common use for generic classes is with collections like linked lists, hash tables, stacks, queues, trees and so on where operations such as adding and removing items from the collection are performed in much the same way regardless of the type of data being stored. The examples I have seen also validate the above statement. Can someone give a valid use of generics in a real-life scenario which does not involve any collections ? Pedantically, I was thinking about making an example which does not involve collections public class Animal<T> { public void Speak() { Console.WriteLine("I am an Animal and my type is " + typeof(T).ToString()); } public void Eat() { //Eat food } } public class Dog { public void WhoAmI() { Console.WriteLine(this.GetType().ToString()); } } and "An Animal of type Dog" will be Animal<Dog> magic = new Animal<Dog>(); It is entirely possible to have Dog getting inherited from Animal (Assuming a non-generic version of Animal)Dog:Animal Therefore Dog is an Animal Another example I was thinking was a BankAccount. It can be BankAccount<Checking>,BankAccount<Savings>. This can very well be Checking:BankAccount and Savings:BankAccount. Are there any best practices to determine if we should go with generics or with inheritance ?

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  • Stored Procedure to create Insert statements in MySql ??

    - by karthik
    I need a storedprocedure to get the records of a Table and return the value as Insert Statements for the selected records. For Instance, The stored procedure should have three Input parameters... 1- Table Name 2- Column Name 3- Column Value If 1- Table Name = "EMP" 2- Column Name = "EMPID" 3- Column Value = "15" Then the output should be, select all the values of EMP where EMPID is 15 Once the values are selected for above condition, the stored procedure must return the script for inserting the selected values. The purpose of this is to take backup of selected values. when the SP returns a value {Insert statements}, c# will just write them to a .sql file. I have no idea about writing this SP, any samples of code is appreicated. Thanks..

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  • Most optimal order (of joins) for left join

    - by Ram
    I have 3 tables Table1 (with 1020690 records), Table2(with 289425 records), Table 3(with 83692 records).I have something like this SELECT * FROM Table1 T1 /* OK fine select * is bad when not all columns are needed, this is just an example*/ LEFT JOIN Table2 T2 ON T1.id=T2.id LEFT JOIN Table3 T3 ON T1.id=T3.id and a query like this SELECT * FROM Table1 T1 LEFT JOIN Table3 T3 ON T1.id=T3.id LEFT JOIN Table2 T2 ON T1.id=T2.id The query plan shows me that it uses 2 Merge Join for both the joins. For the first query, the first merge is with T1 and T2 and then with T3. For the second query, the first merge is with T1 and T3 and then with T2. Both these queries take about the same time(40 seconds approx.) or sometimes Query1 takes couple of seconds longer. So my question is, does the join order matter ?

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  • How to expose MEX when I need the service to have NTLM authentication

    - by Ram Amos
    I'm developing a WCF service that is RESTful and SOAP, now both of them needs to be with NTLM authentication. I also want to expose a MEX endpoint so that others can easily reference the service and work with it. Now when I set IIS to require windows authentication I can use the REST service and make calls to the service succesfully, but when I want to reference the service with SVCUTIL it throws an error that it requires to be anonymous. Here's my web.config: <system.serviceModel> <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true"/> <bindings> <basicHttpBinding> <binding name="basicHttpBinding" maxReceivedMessageSize="214748563" maxBufferSize="214748563" maxBufferPoolSize="214748563"> <security mode="TransportCredentialOnly"> <transport clientCredentialType="Ntlm"> </transport> </security> </binding> </basicHttpBinding> <webHttpBinding> <binding name="webHttpBinding" maxReceivedMessageSize="214748563" maxBufferSize="214748563" maxBufferPoolSize="214748563"> <security mode="TransportCredentialOnly"> <transport clientCredentialType="Ntlm"> </transport> </security> </binding> </webHttpBinding> <mexHttpBinding> <binding name="mexHttpBinding"></binding> </mexHttpBinding> </bindings> <standardEndpoints> <webHttpEndpoint> <standardEndpoint name="" automaticFormatSelectionEnabled="true" helpEnabled="True"> </standardEndpoint> </webHttpEndpoint> </standardEndpoints> <services> <service name="Intel.ResourceScheduler.Service" behaviorConfiguration="Meta"> <clear /> <endpoint address="soap" name="SOAP" binding="basicHttpBinding" contract="Intel.ResourceScheduler.Service.IResourceSchedulerService" listenUriMode="Explicit" /> <endpoint address="" name="rest" binding="webHttpBinding" behaviorConfiguration="REST" contract="Intel.ResourceScheduler.Service.IResourceSchedulerService" /> <endpoint address="mex" name="mex" binding="mexHttpBinding" behaviorConfiguration="" contract="IMetadataExchange" /> </service> </services> <behaviors> <endpointBehaviors> <behavior name="REST"> <webHttp /> </behavior> <behavior name="WCFBehavior"> <dataContractSerializer maxItemsInObjectGraph="2147483647" /> </behavior> </endpointBehaviors> <serviceBehaviors> <behavior name="Meta"> <serviceMetadata httpGetEnabled="true"/> </behavior> <behavior name="REST"> <dataContractSerializer maxItemsInObjectGraph="2147483647" /> </behavior> <behavior name="WCFBehavior"> <serviceMetadata httpGetEnabled="true"/> <dataContractSerializer maxItemsInObjectGraph="2147483647" /> </behavior> <behavior name=""> <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment --> <serviceMetadata httpGetEnabled="true" /> <!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information --> <serviceDebug includeExceptionDetailInFaults="false" /> </behavior> </serviceBehaviors> </behaviors> Any help will be appreciated.

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  • Thread to receive the messages from serial port is not working using c#

    - by karthik
    I am using Serial port to receive the messages. The below function is running in a thread. When i debug i find that the thread is running properly. But "if (sp.IsOpen)" is always false, due to which the code is not executing inside the IF condition at all. It says the Port is closed. I will be having multiple serial ports in my system and i will not know, which port will receive the message. So i need to listen to all the ports in one Thread. How can i solve my problem here ? private void ListenerPorts() { log.Info("Listening Thread Started"); while (true) { //foreach (SerialPort sp in storeport) foreach (SerialPort sp in comPortsList) { if (sp.IsOpen) { sp.ReadTimeout = readTimeoutInMs; sp.WriteTimeout = writeTimeoutInMs; try { string msg = sp.ReadLine(); this.GetMessageRichTextBox("Message : " + msg + "\n"); sp.WriteLine(sp.PortName); if (msg.Contains("COM")) { // is AutoScan receiverPortName = sp.ReadLine(); this.updateLblStatusRichTextBox(sp.PortName + " is connected to " + msg + "\n"); } else { //standalone is uppercase ReceiverPortName = sp.ReadLine(); this.updateLblStatusRichTextBox(sp.PortName + " is connected to " + ReceiverPortName + "\n"); } } catch (Exception ex) { // no data System.Diagnostics.Debug.WriteLine(sp.PortName + " : " + ex.Message); } } } } }

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  • convert MsSql StoredPorcedure to MySql

    - by karthik
    I need to covert the following SP of MsSql To MySql. I am new to MySql.. Help needed. CREATE PROC InsertGenerator (@tableName varchar(100)) as --Declare a cursor to retrieve column specific information --for the specified table DECLARE cursCol CURSOR FAST_FORWARD FOR SELECT column_name,data_type FROM information_schema.columns WHERE table_name = @tableName OPEN cursCol DECLARE @string nvarchar(3000) --for storing the first half --of INSERT statement DECLARE @stringData nvarchar(3000) --for storing the data --(VALUES) related statement DECLARE @dataType nvarchar(1000) --data types returned --for respective columns SET @string='INSERT '+@tableName+'(' SET @stringData='' DECLARE @colName nvarchar(50) FETCH NEXT FROM cursCol INTO @colName,@dataType IF @@fetch_status<0 begin print 'Table '+@tableName+' not found, processing skipped.' close curscol deallocate curscol return END WHILE @@FETCH_STATUS=0 BEGIN IF @dataType in ('varchar','char','nchar','nvarchar') BEGIN SET @stringData=@stringData+'''''''''+ isnull('+@colName+','''')+'''''',''+' END ELSE if @dataType in ('text','ntext') --if the datatype --is text or something else BEGIN SET @stringData=@stringData+'''''''''+ isnull(cast('+@colName+' as varchar(2000)),'''')+'''''',''+' END ELSE IF @dataType = 'money' --because money doesn't get converted --from varchar implicitly BEGIN SET @stringData=@stringData+'''convert(money,''''''+ isnull(cast('+@colName+' as varchar(200)),''0.0000'')+''''''),''+' END ELSE IF @dataType='datetime' BEGIN SET @stringData=@stringData+'''convert(datetime,''''''+ isnull(cast('+@colName+' as varchar(200)),''0'')+''''''),''+' END ELSE IF @dataType='image' BEGIN SET @stringData=@stringData+'''''''''+ isnull(cast(convert(varbinary,'+@colName+') as varchar(6)),''0'')+'''''',''+' END ELSE --presuming the data type is int,bit,numeric,decimal BEGIN SET @stringData=@stringData+'''''''''+ isnull(cast('+@colName+' as varchar(200)),''0'')+'''''',''+' END SET @string=@string+@colName+',' FETCH NEXT FROM cursCol INTO @colName,@dataType END

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  • Update panel problem

    - by ram
    Here is my code: <body> <form id="form1" runat="server"> <div> <asp:ScriptManager ID="ScriptManager1" runat="server"> </asp:ScriptManager> <asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" ChildrenAsTriggers="false" runat="server"> <ContentTemplate> <asp:Button ID="Button1" runat="server" Text="Click1" OnClick="Button1_Click" /> <br /> <br /> Last refresh <%=DateTime.Now.ToString() %> <br /> <br /> <asp:UpdatePanel ID="UpdatePanel2" UpdateMode="Conditional" ChildrenAsTriggers="true" runat="server"> <ContentTemplate> <asp:Button ID="Button2" runat="server" Text="Click2" OnClick="Button2_Click" /> <br /> <br /> Last refresh <%=DateTime.Now.ToString() %> <br /> <br /> </ContentTemplate> <Triggers> <asp:AsyncPostBackTrigger ControlID="Button2" EventName="Click" /> </Triggers> </asp:UpdatePanel> </ContentTemplate> <Triggers> <asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click" /> </Triggers> </asp:UpdatePanel> </div> </form> </body> Im using two update panels here, when i click "Button2" then "UpdatePanel2" was refreshed, if i click "Button1" then both update panel were refreshed, but my need is if i click "Button1" then "UpdatePanel1" have to be refreshed. Thanks.

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  • Find Month difference in php?

    - by Karthik
    Is there anyway to find the month difference in php? I have the input of from date 2003-10-17 and todate 2004-03-24. I need the results how many month is there within these two days. Say if 6 months, i need the output in months only. Thanks for guide me for day difference. I find the solution through mysql but i need in php. Anyone help me, Thanks in advance.

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  • How to trigger a postback using JQuery Droppable plugin ?

    - by Sandeep K Ram
    Hi, This is my script for the draggable and droppable <script type="text/javascript"> $(function() { $(".Source li").draggable({ appendTo: "body", helper: "clone", revert: "invalid" }); $(".Destination ").droppable({ activeClass: "ui-state-default", hoverClass: "ui-state-hover", accept: ".Source li", drop: function(event, ui) { $(this).find(".placeholder").remove(); $("#Hf1").val(ui.draggable.text()); $("#TxtItemId").val($("#Hf1").val()); } }); }); </script> Now I want to access the value of the "TxtItemId" control in the code-behind through a postback. How do I go about doing this ? BTW, this is for a scenario where a person will drag an item from a panel into a shopping cart and I need to capture the Id of the dropped item and trigger a postback after the drop to update the quantity of that item in the cart.

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  • how do redirect values to other page without click event in html. Below code is fine IE. But Not in

    - by karthik
    I have implemented paypal in my web page. Process is 'given inputs are redirect to other page(2 nd page) which have to get that input and redirect to paypal page(third page). Here we submit data on first page. value pass to second page(in this page user interaction not allowed) after pass to third page.It works fine in IE . But Not In Mozila.Send any Solution. Code sample(second page): <%string product = Request.QueryString["productName"].ToString();% <% string amount = Request.QueryString["price"].ToString(); % " " document.all.frmpaypal.submit(); Fine in IE, Not In Mozila

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  • Migrate Vb to Vb.net

    - by vigna hari karthik
    Hai Friends I having the project in Vb i want to migrate that project in the vb.net.any tool available pls inform me.i have tried a lot.i have not installed the visual basic.with the help of remote server i am running that project.

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