Right-click on your Startup Project in the Solution Explorer and choose Properties. Then, on the Debug page you can enter command line arguments.

from a solution provided by Viv Phillips in Message #1241577

If (dataRow.Table.Columns.Contains("FirstName"))
	' do something
End If

from a solution provided by John Baird in Message #1170955

If the status is 'P', change it to display 'Pass'.
If the status is 'F', change it to display 'Fail'.

There are at least two ways to handle this, maybe more.

First, you can put a subroutine into the code-behind of the page, coded to accept a string character and return a string value. Then, use an ItemTemplate to define the binding expression for that column as the return value of your sub call (passing in the Container.DataItem as the parameter). You can see an example of this in VB here (there is also a C# example linked on that page, too):

http://dotnetjunkies.com/QuickStartv20/util/srcview.aspx?path=~/aspnet/samples/data/DataBind6.src&file=DataBind6_vb.aspx

Or, you can trap the RowDataBound event of the DataGrid, check the RowType property to see if it's a data row, and refer to the cell and change its Text value according to the value you find already there. Here is an example from .NET help for RowDataBound event that sets the text to italic tags around the existing value. You could put IF logic there to check the existing value and set a different value accordingly.

Here is the VB italics sample from RowDataBound help, to point you in the right direction (NOTE: you have to either set the OnRowDataBound property of the GridView to point to this subroutine or you have to add a "Handles" clause at the end of the first line that declares the Sub):

Sub CustomersGridView_RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs)

    If e.Row.RowType = DataControlRowType.DataRow Then
    
      ' Display the company name in italics.
      e.Row.Cells(1).Text = "<i>" & e.Row.Cells(1).Text & "</i>"
        
    End If
    
  End Sub

The RowDataBound looks like a good solution if you can count on the column staying in the SAME order -- because you refer to the Cell by position in the cells collection (zero-based). If the column order changes for some reason, the code will fail. Therefore, the subroutine in the page-behind and a binding expression looks like the safest approach to me.

from a solution provided by David Stevenson in Message #1141576

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=233259&SiteID=1

from a solution provided by Naomi Nosonovsky in Message #1244475