Strange Datagrid behavior.

Posted on 2004-09-29
Medium Priority
Last Modified: 2010-04-17
I'm trying to populate a datagrid with an untyped datatable in a winform. Below is the code I'm running. Can anyone explain why, after I set the datasource property, the code keeps running (exception free), and the form never appears? This code resides in the form load event. When I comment out the DataSource line, the form comes up fine, so I'm guessing whatever the problem is in that line. I've verified that I'm getting back a valid Datatable with populated values. I've used grids many times before without ever seeing this problem. I haven't set any of the Datagrid properties, they're all the defaults.

I've tried populating a Dataset, dataview, etc...Nothing works.

Dim i As Integer
Dim dt As New DataTable

            olMgr = New SystemMgr

            dt = olPlayerMgr.GetMembers
            DataGrid1.DataSource = dt

        Catch ex As Exception
            Dim Err As ErrorLogger = New ErrorLogger
            Err.HandleError(slErrLogPath & slErrLogFile, ex, "")
            Err = Nothing

        End Try
Question by:wgyger12

Accepted Solution

blksht earned 1500 total points
ID: 12185584
Hi wgyger12,

Reading your problem I don't exactly why the form isn't showing up but offer the following suggestions:
1) have you setting break points in the form load sub to see the process execution? I don't see anything wrong with what you are doing that would be causing it to hang like that but by stepping through the code you may discover the code is not hanging where you think it is. For example, an exception might be thrown and you might actually be hanging in the catch statement.

2) as I understand it you need to call datagrid1.databind() to bind the data source to the datagrid.

sorry if this wasn't much help.....

Author Comment

ID: 12185617
Thanks for the post. Shortly after I submitted my query here, I created a new form, copied all controls and code into it from the original, and ran it again. Oddly enough, it worked fine. Something was corrupt with the original, but I can only guess.  Wish I'd done that before I spent 4 hours looking into why the form wouldn't appear.

I've personally never had any problems with winforms or controls even remotely similar to this.


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