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  • System.Net.WebProxy in .NET Client

    - by NealWalters
    I don't yet have a good understanding of how the network is set up at my current client, but here is my issue. The vendor has a normal URL, but it might be a leased line. I have a .NET program that calls an external .asmx service. If I go to IE, Connections, LAN Settings, and uncheck "Automatic detect settings" and uncheck "Use Automatic Configuration Sript", then the .NET program runs and access the web service fine. But then, to access internet again from the browser, I have to re-check the two boxes, and so on throughout the day while we are testing and browsing. I'm hoping to put some code like this in the .NET program to avoid us having to constantly change: if (chkUseProxy.Checked) { myclient.Proxy = new System.Net.WebProxy(""); } I tried null and empty string and so far not able to connect without errors. Is this possible, and if so, what might be the correct parms for the constructor? Or are there other objects or properties that would need to be set? Thanks, Neal Walters

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  • How to make exported .XLS file Editable

    - by nCdy
    How to make exported .XLS file Editable Thid code makes .XLS File Read Only :( using System; using System.Data; using System.Configuration; using System.IO; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; public class GridViewExportUtil { /// <param name="fileName"></param> /// <param name="gv"></param> public static void Export(string fileName, GridView gv) { HttpContext.Current.Response.Clear(); HttpContext.Current.Response.AddHeader( "content-disposition", string.Format("content-disposition", "attachment; filename={0}", fileName)); HttpContext.Current.Response.ContentType = "application/ms-excel"; HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache); HttpContext.Current.Response.Charset = System.Text.Encoding.Unicode.EncodingName; HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.Unicode; HttpContext.Current.Response.BinaryWrite(System.Text.Encoding.Unicode.GetPreamble()); using (StringWriter sw = new StringWriter()) { using (HtmlTextWriter htw = new HtmlTextWriter(sw)) { // Create a form to contain the grid Table table = new Table(); // add the header row to the table if (gv.HeaderRow != null) { GridViewExportUtil.PrepareControlForExport(gv.HeaderRow); table.Rows.Add(gv.HeaderRow); } // add each of the data rows to the table foreach (GridViewRow row in gv.Rows) { GridViewExportUtil.PrepareControlForExport(row); table.Rows.Add(row); } // add the footer row to the table if (gv.FooterRow != null) { GridViewExportUtil.PrepareControlForExport(gv.FooterRow); table.Rows.Add(gv.FooterRow); } // render the table into the htmlwriter table.RenderControl(htw); // render the htmlwriter into the response HttpContext.Current.Response.Write(sw.ToString()); HttpContext.Current.Response.End(); } } } /// <summary> /// Replace any of the contained controls with literals /// </summary> /// <param name="control"></param> private static void PrepareControlForExport(Control control) { for (int i = 0; i < control.Controls.Count; i++) { Control current = control.Controls[i]; if (current is LinkButton) { control.Controls.Remove(current); control.Controls.AddAt(i, new LiteralControl((current as LinkButton).Text)); } else if (current is ImageButton) { control.Controls.Remove(current); control.Controls.AddAt(i, new LiteralControl((current as ImageButton).AlternateText)); } else if (current is HyperLink) { control.Controls.Remove(current); control.Controls.AddAt(i, new LiteralControl((current as HyperLink).Text)); } else if (current is DropDownList) { control.Controls.Remove(current); control.Controls.AddAt(i, new LiteralControl((current as DropDownList).SelectedItem.Text)); } else if (current is CheckBox) { control.Controls.Remove(current); control.Controls.AddAt(i, new LiteralControl((current as CheckBox).Checked ? "True" : "False")); } if (current.HasControls()) { GridViewExportUtil.PrepareControlForExport(current); } } } }

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  • writing a data to App_Data

    - by Alexander
    I want to write an .xml file using the following code into the App_Data/posts, why is it causing an error: Stream writer = new FileStream("..'\'App_Data'\'posts'\'" + new Guid(post_ID.ToString()).ToString() + ".xml", FileMode.Create);

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  • iTextSharp everything works but getting strange error when opening pdf document

    - by Dmitris
    Hello everybody, I am using iTextSharp to create my PDF document on the fly. Everything works fine, and i get no errors in the code; however, when i open created PDF it gives me error saying that document will be not displayed properly because it contain errors. Here is the code bellow that gives me a problem: public class pdfevents : PdfPageEventHelper { public override void OnEndPage(PdfWriter writer, Document document) { base.OnEndPage(writer, document); PdfContentByte cb = writer.DirectContent; cb.BeginText(); cb.SetTextMatrix(20, document.GetBottom(-30)); BaseFont bf = BaseFont.CreateFont(BaseFont.TIMES_ROMAN, BaseFont.CP1252, BaseFont.NOT_EMBEDDED); cb.SetFontAndSize(bf, 10); //thats is the piece of code that makes problems //if i remove it then document displays without error cb.MoveTo(15F, document.GetBottom(-15)); cb.SetLineWidth(0.5F); cb.LineTo(document.GetRight(0), document.GetBottom(-15)); cb.Stroke(); cb.ShowText(DateTime.Now.ToLongDateString()); int n = writer.PageNumber; cb.SetTextMatrix(document.GetRight(20), document.GetBottom(-30)); cb.ShowText(" - " + n + " - "); cb.EndText(); } } If i remove following lines : //thats is the piece of code that makes problems //if i remove it then document displays without error cb.MoveTo(15F, document.GetBottom(-15)); cb.SetLineWidth(0.5F); cb.LineTo(document.GetRight(0), document.GetBottom(-15)); Then i am getting no error opening generated PDF, otherwise i can open PDF and see the document and it's content including the line. However, then i get error that document been generated with error. Can somebody tell me what is wrong ? Thanks in advance. cb.Stroke();

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  • Grid View Pagination.

    - by Wondering
    Dear All, I have a grid view and I want to implement Pagination functionality.This is working fine. protected DataSet FillDataSet() { string source = "Database=GridTest;Server=Localhost;Trusted_Connection=yes"; con = new SqlConnection(source); cmd = new SqlCommand("proc_mygrid", con); ds = new DataSet(); da = new SqlDataAdapter(cmd); da.Fill(ds); GridView1.DataSource = ds; GridView1.DataBind(); return ds; } protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e) { int newPagenumber = e.NewPageIndex; GridView1.PageIndex = newPagenumber; GridView1.DataSource = FillDataSet(); GridView1.DataBind(); } But the problem is for each pagination I have to call FillDataSet(); Is there any way to stop that.Any other coding approach? Thanks.

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  • Display Image in Crystal reports Using URL

    - by Shantanu Gupta
    I want to show image in a crystal report. Scenario is something like this. I have a database where my path of an image is persisting. eg ftp://Images/1.jpg Now i want to repeat this image in a crystal report. When i fills my datatable it shows me complete url. When i displays this field in GridView i uses imageBox to display my image and it works for me very fine. But when i tries to do the same with crystal reports, it starts me showing image path as it is. Now here instead of path i want an image to be displayed.

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  • PreApplicationStartMethod Attribute causes exception

    - by Joop
    Strange thing happening to me with the PreApplicationStartMethod Attribute. I did implement it in my latest project. In the AssemblyInfo.cs I have the following line: [assembly: PreApplicationStartMethod(typeof(MyAssembly.Initializer), "Initialize")] The Type and method look like this: namespace MyAssembly { public static class Initializer { public static void Initialize() { TranslationKeys.Initialize(); } } } When I rebuild my application and load it in the browser I get the following error: The method specified by the PreApplicationStartMethodAttribute on assembly 'MyWebApp, Version=0.0.1.0, Culture=neutral, PublicKeyToken=null' cannot be resolved. Type: 'MyAssembly.Initializer', MethodName: 'Initialize'. Verify that the type is public and the method is public and static (Shared in Visual Basic). I really have no idea what the problem is.

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  • How to get previous day using datetime.

    - by Niike2
    I want to set a DateTime property to previous day at 00:00:00. I don't know why DateTime.AddDays(-1) isn't working. Or why DateTime.AddTicks(-1) isn't working. First should this work? I have 2 objects. Each object have DateTime fields ValidFrom, ValidTo. First i save an object with ValidTo using the application setting MaxDate (SQL-server maxdate 9999-12-12). Then when I save a new object and that object ValidFrom is within the first objects ValidFrom - ValidTo timespan I want to change first objects ValidTo datetime to previous day of new objects ValidTo datetime.

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  • show reports using graphs.

    - by user175084
    i am currently using MScharts to display information from my reports... is there a way i can display the reports in a better way.. using silverlight or something whic is free for commercial use// i want the reports to graphs to just stand out.. any suggestions?? thanks

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  • adding users, membership, and roles to site

    - by Alexander
    I have followed scott's gu tutorial here I uploaded the whole database to my site. Before doing what Scott's says I had one username stored in the membership. How can I create an additional user now that the table is in the web host? I can see that there's aspnet_Membership, aspnet_Applications, etc..etc

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  • what variable i can use instead of shared?

    - by SmartestVEGA
    I have the following variable which creates problem when i use multiples instance of the same web form. Could you please let me know how i could what variables other than shared i can use to achieve this purpose? Public strRoleType As String = String.Empty Protected Shared isAreaSelected As Integer = 0 Protected Shared isStoreSelected As Integer = 0 Protected Shared isHeadOfficeSelected As Integer = 0 Protected Shared isRegionSelected As Integer = 0

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  • Who moved this PC here aka Locate which port on switch a PC is plugged into

    - by ggonsalv
    The catch is you have no SNMP access, not even public. The end vision is locate a PC in building easily even if PC's are moved around. The MAC address of the PC is known and the software would run as client on each desktop, reporting back which port the PC was plugged into. Well from a programmer perspective, my network skills are not the best. Yes I could use SNMP, download the MAC port table, load it into SQL, match it to the PC name. Seems alot of work. Lets say I ping a single point from the PC. Would the echo have some thing unique for each device on the same switch? All I need to identify some thing unique for each PC plugged into each port. If the PC was moved from location A to a different location then the unique response would change.

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  • Ninject InThreadScope Binding

    - by e36M3
    I have a Windows service that contains a file watcher that raises events when a file arrives. When an event is raised I will be using Ninject to create business layer objects that inside of them have a reference to an Entity Framework context which is also injected via Ninject. In my web applications I always used InRequestScope for the context, that way within one request all business layer objects work with the same Entity Framework context. In my current Windows service scenario, would it be sufficient to switch the Entity Framework context binding to a InThreadScope binding? In theory when an event handler in the service triggers it's executed under some thread, then if another file arrives simultaneously it will be executing under a different thread. Therefore both events will not be sharing an Entity Framework context, in essence just like two different http requests on the web. One thing that bothers me is the destruction of these thread scoped objects, when you look at the Ninject wiki: .InThreadScope() - One instance of the type will be created per thread. .InRequestScope() - One instance of the type will be created per web request, and will be destroyed when the request ends. Based on this I understand that InRequestScope objects will be destroyed (garbage collected?) when (or at some point after) the request ends. This says nothing however on how InThreadScope objects are destroyed. To get back to my example, when the file watcher event handler method is completed, the thread goes away (back to the thread pool?) what happens to the InThreadScope-d objects that were injected? EDIT: One thing is clear now, that when using InThreadScope() it will not destroy your object when the handler for the filewatcher exits. I was able to reproduce this by dropping many files in the folder and eventually I got the same thread id which resulted in the same exact Entity Framework context as before, so it's definitely not sufficient for my applications. In this case a file that came in 5 minutes later could be using a stale context that was assigned to the same thread before.

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  • Extend LDAP Membership to append a prefix/sufix to the username

    - by Romias
    Our web applications are using LDAP Membership Provider to authenticate and register users in Active Directory. In order to allow users to provide usernames that exist in other applications, we need to add a prefix in its username and it should be as transparent and painless as possible. What I need is a way to extend the LDAP Membership Provider to be able to add (concatenate) a prefix to the username just before Membership authenticate or register it. For example, if user input is "JohnS" in application 1... I want to authenticate: "App1_JohnS". How could I extend the membership to accomplish this? Any idea what is triggered just before authenticate and register (create user)? Update: Each web app has an "OU" in AD where create users to and authenticate from. But as it is just ONE Active Directory Controller the usernames must be unique. We need to solve this issue using Membership providers and not adding more ADs.

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  • How can I limit access to a particular class to one caller at a time in a web service?

    - by MusiGenesis
    I have a web service method in which I create a particular type of object, use it for a few seconds, and then dispose it. Because of problems arising from multiple threads creating and using instances of this class at the same time, I need to restrict the method so that only one caller at a time ever has one of these objects. To do this, I am creating a private static object: private static object _lock = new object(); ... and then inside the web service method I do this around the critical code: lock (_lock) { using (DangerousObject do = new DangerousObject()) { do.MakeABigMess(); do.CleanItUp(); } } I'm not sure this is working, though. Do I have this right? Will this code ensure that only one instance of DangerousObject is instantiated and in use at a time?

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  • how to get the table primary key after saving an item via AdoNetServiceProxy

    - by Jronny
    I have a js proxy class: function ProxyClass() { this.Properties = null; this.Insert = function () { try { var service = new Sys.Data.AdoNetServiceProxy("/WcfDataService1.svc"); service.insert(this, "TheTable"); } catch (ex) { alert("error: " + ex); } }; } The insert has been working, but I need to get the primary key of TheTable right after. How could we be able to pull it up? Thanks a lot

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  • code to send email

    - by Alexander
    What am I doing wrong here? private void SendMail(string from, string body) { string mailServerName = "plus.pop.mail.yahoo.com"; MailMessage message = new MailMessage(from, "[email protected]", "feedback", body); SmtpClient mailClient = new SmtpClient(); mailClient.Host = mailServerName; mailClient.Send(message); message.Dispose(); } I got the following error: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 209.191.108.191:25

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  • IValidator.Validate method and adding error message to a custom type

    - by user102533
    I have several server controls that implement the IValidator interface. As such, they have their own Validate() methods that look like this. public void Validate() { this.IsValid = true; if (someConditionFails()) { ErrorMessage = "Condition failed!"; this.IsValid = false; } } I understand that these Validate() methods are executed on postback before the load completed event that is executed before the save button's event handler. What I would like to do is pass in a reference to an instance of a custom class that collects all the error messages that I can access from Save button event handler. In other words, I would like to do something like this: public void Validate(ref SummaryOfErrorMessages sum) I guess I can't do this as the signature is different from what the IValidator interface has. The other option I can think of is on Load Completed event, I would iterate through all the validators on page, get the ones with IsValid = false and create my SummaryOfErrorMessages there. Does this sound right? Is there a better way of doing it?

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  • VB Equivalent of C# Event Creation

    - by Steven
    I'm trying to extend the GridView class to always show the header and footer even when the datasource is empty. I found this website: link. However, it is written in C# but I use VB. What's the VB equivalent of line 76 (public event MustAddARowHandler MustAddARow;)?

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  • Gridview - Is it necessary to grab data from database every time a filter, sort, or paging event occ

    - by hamlin11
    Regarding gridviews that are not bound to a Data Source Control: In most GridView tutorials that I have seen, when just about any GridView event occurs, the end of the event handler will include BindDataGrid(). In some form, these BindDataGrid() functions 1) Grab data from the database 2) Assign any Filter or Sort expressions to the data, and 3) Bind the gridview to that data source (usually a DataView or DataTable. Is there a better way to provide filterable & sortable data to a GridView without having to hit the database so often? Thanks

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  • Problem with Efficient Gridview paging without datasource control

    - by Ronnie Overby
    I am trying to do efficient paging with a gridview without using a datasource control. By efficient, I mean I only retrieve the records that I intend to show. I am trying to use the PagerTemplate to build my pager functionality. In short, the problem is that if I bind only the records that I intend to show on the current page, the gridview doesn't render its pager template, so I don't get the paging controls. It's almost as if I MUST bind more records than I intend to show on a given page, which is not something I want to do.

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  • Form Based Authentication problem?

    - by programmerist
    i have 2 pages : Login.aspx and Satis.aspx. i redirected from Login.aspx to Satis.aspx if authentication is correct . if i signout from satis i redirected to Login.aspx. But if i write satis.aspx' url on web scanner i entered satis.aspx. But i am not sign in Satis.aspx. i should't enter Satis.aspx directly. my web config: <authentication mode="Forms"> <forms loginUrl="Login.aspx" name=".ASPXFORMSAUTH" path="/" protection="All"> <credentials> <user name="a" password="a"></user> </credentials> </forms> </authentication> <authorization> <allow users="*"/> </authorization> </system.web> <location path="~/ContentPages/Satis/Satis.aspx"> <system.web> <authorization> <deny users="?"/> </authorization> </system.web> </location> Login.aspx.cs: protected void lnkSubmit_Click(object sender, EventArgs e) { if(FormsAuthentication.Authenticate(UserEmail.Value,UserPass.Value)) { FormsAuthentication.RedirectFromLoginPage (UserEmail.Value, PersistForms.Checked); } else Msg.Text = "Invalid Credentials: Please try again"; } Satis.aspx protected void LogoutSystem_Click(object sender, EventArgs e) { FormsAuthentication.SignOut(); Response.Redirect("~/Login/Login.aspx"); }

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  • How to fire server-side methods with jQuery

    - by Nasser Hajloo
    I have a large application and I'm going to enabling short-cut key for it. I'd find 2 JQuery plug-ins (demo plug-in 1 - Demo plug-in 2) that do this for me. you can find both of them in this post in StackOverFlow My application is a completed one and I'm goining to add some functionality to it so I don't want towrite code again. So as a short-cut is just catching a key combination, I'm wonder how can I call the server methods which a short-cut key should fire? So How to use either of these plug-ins, by just calling the methods I'd written before? Actually How to fire Server methods with Jquery? You can also find a good article here, by Dave Ward Update: here is the scenario. When User press CTRL+Del the GridView1_OnDeleteCommand so I have this protected void grdDocumentRows_DeleteCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e) { try { DeleteRow(grdDocumentRows.DataKeys[e.Item.ItemIndex].ToString()); clearControls(); cmdSaveTrans.Text = Hajloo.Portal.Common.Constants.Accounting.Documents.InsertClickText; btnDelete.Visible = false; grdDocumentRows.EditItemIndex = -1; BindGrid(); } catch (Exception ex) { Page.AddMessage(GetLocalResourceObject("AProblemAccuredTryAgain").ToString(), MessageControl.TypeEnum.Error); } } private void BindGrid() { RefreshPage(); grdDocumentRows.DataSource = ((DataSet)Session[Hajloo.Portal.Common.Constants.Accounting.Session.AccDocument]).Tables[AccDocument.TRANSACTIONS_TABLE]; grdDocumentRows.DataBind(); } private void RefreshPage() { Creditors = (decimal)((AccDocument)Session[Hajloo.Portal.Common.Constants.Accounting.Session.AccDocument]).Tables[AccDocument.ACCDOCUMENT_TABLE].Rows[0][AccDocument.ACCDOCUMENT_CREDITORS_SUM_FIELD]; Debtors = (decimal)((AccDocument)Session[Hajloo.Portal.Common.Constants.Accounting.Session.AccDocument]).Tables[AccDocument.ACCDOCUMENT_TABLE].Rows[0][AccDocument.ACCDOCUMENT_DEBTORS_SUM_FIELD]; if ((Creditors - Debtors) != 0) labBalance.InnerText = GetLocalResourceObject("Differentiate").ToString() + "?" + (Creditors - Debtors).ToString(Hajloo.Portal.Common.Constants.Common.Documents.CF) + "?"; else labBalance.InnerText = GetLocalResourceObject("Balance").ToString(); lblSumDebit.Text = Debtors.ToString(Hajloo.Portal.Common.Constants.Common.Documents.CF); lblSumCredit.Text = Creditors.ToString(Hajloo.Portal.Common.Constants.Common.Documents.CF); if (grdDocumentRows.EditItemIndex == -1) clearControls(); } Th other scenario are the same. How to enable short-cut for these kind of code (using session , NHibernate, etc)

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