While I was debugging an ASP.NET Application, I wanted to get an object values I got this error message instead:"Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack"This problem occurs when using Response.Redirect or Server.Transfer method, because the Response.End method...
I got this unusual exception while working on an ASP.NET project:"Adding the specified count to the semaphore would cause it to exceed its maximum count error".I thought it is something related to SQL Server Database Connection String.After using Query Profiler I was able to run SQL queries directly without any...
There is an event named "OnClientContextMenuShowing" for Rad Treeview that calls javascipt function and passes 2 arguments "sender, args".The Args parameter contains The current selected TreeNode and Context Menu Items.You can enable or disable any Context menu item based on any attributes for the Current Selected Tree Node.Here is a...
Sometimes we may need to create iFrames and use it within GridView or Repeater, and we want to pass some values to it.This example will show you how to create iFrame Programmatically and add it to a PlaceHolder.HtmlGenericControl myFrame = new HtmlGenericControl();myFrame.TagName = "IFRAME"; myFrame.Attributes["src"] = "MyPagePath"; myFrame.Attributes["id"] = "myFrame1"; myFrame.Attributes["name"] = "myFrame1"; myFrame.Attributes["width"] =...
I got this error when I tried to save a Page with lots of form fields to SQL Server Database.The default max number of form fields that can be post is 1000.In order to solve this error add this Line to your Web.Config File:<appSettings> <add key="aspnet:MaxHttpCollectionKeys" value="10000" /> </appSettings>
A junior developer asked me can I select some rows from a GridView and copy them to another GridView?I told him sure all you have to do is to create a DataTable and the columns that will be added to it.Now you will loop for each row in the first...
Boundfields are great in the Gridview, but they do have their limitations.One is that it only has room for one bound field. So, what do you do when you want two or data fields.For example, First and Last names returned to the same column.Turn the BoundField into a TemplateField, with...
The declarative controls of ASP.NET are really great. However, there are some times, when it may not seem so.Let's say you have a DropDownList which is bound by a DataSource control.Also, you have other pages hitting this page, with querystrings, and based on the item in the querystring, you'd like...
The Following code sample shows how to get selected text out from ASP .NET Drop Down List.<script type="text/javascript"> function GetSelectedText() { var ddlID = '#' + '<%= ddlEmployees.ClientID %>'; var selectedText = $(ddlID...
I got this error message when I try to submit a form with HTML Code, the default settings of the .NET Framework will not allow me to submit HTML Code to prevent cross-site scripting (XSS) attacks.To avoid this error set Validate Request to false in the Page Directive.ValidateRequest="false" but this is...
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