ASP.NET web controls

I have been presented with this challenge. I need to build a image viewer type of control.  Basically, a specific part has different views, and when one part is selected, I need to display an image on a medium size and all the ...

Hi - I have set up a number of CustomValidators all of which specify the same method as on their 'OnServerValidate' property. Within the method handling the custom validation how can I determine which CustomValidator is calling ? I would like to modify the error message dynamically but without ...

I got a drop down list, but  when  i try to  selected  an index it dose not work. can someone give me some help? here the code:      Dim dsCountry As New DataSet ...

Hi, I am trying to get my web app to do some maths... The user enters a number in a textbox, then i want the app to deduct 2 from every multiple of 12. ie 12 =10 24 =20 36 =30 ...

Hello, I am using an ASP Menu Control as a user control (.ascx file) on a Master Page. I am having problems with the drop down menus rendering properly in IE 7. I found multiple articles describing this problem and how to fix it ...

Hi there I have a RequiredFieldValidator that displays the text "Required field" for a textbox. The problem is, that the text "Required field" is displayed BEFORE the user presses the button to accept the form. Why does this occure? Must be some setting I've missed, cause in other forms it works as it ...

Hello, in Visual Studio 2005/Visual Web Developer, if I add SQLCommand, SQLCommandBuilder,SQLConnection, SQLDataAdapter to the toolbox, they don't show up until I check "show all items"; then they appear disabled, and can't be added to the page. Still, I see that I can create those objects ...

This Error on page load attempt: A control with ID 'AttachButton' could not be found for the trigger in UpdatePanel 'UpdatePanel1'. Condition: File Upload Control inside of and Ajax UpdatePanel, which is inside of a FormView Insert Template. File Upload Control needs this Trigger ...

I have a datagrid that has a dropdownlist in each row.  When a user changes one of these drop down values, the autopostback allows me to handle the event using the OnSelectedIndexChanged event for the drop down.  This works fine, but I cannot find a way to retrieve which row the drop down ...

I have a webpage (aspx) in .net using visual basic as my code behind it.  I have a gridview that when I push a button it adds a comment box to the gridview, which works, but the page does not refresh to show the data unless ...