You will get following error when you try to update a windows form control from a separate thread. “Cross-thread operation not valid: Control ‘progressBar1’ accessed from a thread other than the thread it was created on.” This article guides you on how to overcome this problem. Problem To reproduce this error, insert a progress bar… Read More »
DATEDIFF (Transact-SQL) DATEDIFF ( datepart , startdate , enddate ) You can use SQL Server DateDiff function to calculate difference between two dates. This delay can be calculated in days, months, years, minutes,hours or seconds. Here is documentation from MSDN datepart Is the parameter that specifies on which part of the date to calculate the… Read More »
This article describes how a basic Error Provider class can be extended to include more functionality. This extended class can reduce significant coding for validating objects on windows form. Download Source (VB.Net – VS 2003) Download Source (C#.Net – VS 2005) Features 1) Allows you to validate multiple controls without writing events for each control… Read More »
Whenever we want to backup or move SQL Server database, most of us prefer to use regular backup utility which is available through Enterprise Manager in SQL Server 2000 or Management Studio in SQL Server 2005. Limitation of using Enterprise Manager or Management Studio is we have to use either complete or differential backups. This… Read More »
Problem You may receiving this error when you try to use javascript to call web methods defined in ASP.Net Web Service file (.ASMX). This error is usually faced when making javascript calls using ASP.Net AJAX framework. The server method failed with the following error: System.InvalidOperationException– Maximum length exceeded. Cause When you call ASP.Net Web Methods… Read More »
Problem I am trying to add a user control in Web.Config file as below, {codecitation style=”brush: xml; gutter:false”}<controls> <add tagPrefix=”MyControl” tagName=”MyUserControl” src=”MyUserControl.ascx”/> </controls> {/codecitation} It gives me following error, Configuration Error: The relative virtual path ‘MyUserControl.ascx’ is not allowed here. Solution To resolve this issue, move your WebUserControl from root directory to a sub directory.… Read More »
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