Strange behavior of invisible controls

Strange behavior of invisible controls

Post by Peter Afon » Fri, 21 May 2004 05:26:57


Hello:

I'm updating multiple rows in the datagrid, using the routine described in
the article "Top Questions about the DataGrid Web Server Control":

http://www.yqcomputer.com/

To determine which rows had been changed, I'm using the RowChanged sub:

Protected Sub RowChanged(ByVal sender As Object, _
ByVal e As System.EventArgs)
'---------------------------------------------------------------------------
---------------------
' Add ID's for changed rows
'---------------------------------------------------------------------------
---------------------
Try
Dim dgi As DataGridItem = _
CType(CType(sender, Control).NamingContainer, DataGridItem)
Dim IDlabel As Label = CType(dgi.FindControl("lblOrder"), Label)
Dim ID As Integer = CType(IDlabel.Text, Integer)
If Not (IDlist.Contains(ID)) Then
IDlist.Add(ID)
End If
Catch ex As Exception
Me.lblError.Text = "Error No.: " & Err.Number.ToString & " - " & ex.ToString
End Try
End Sub

<asp:CheckBox id="chkInHouse" ToolTip="Plates In House" runat="server"
OnCheckedChanged="RowChanged" Checked='<%# DataBinder.Eval(Container,
"DataItem.InHouse") %>'>

It works OK everywhere, except one datagrid where some of my checkboxes are
invisible - the user has to click a button to make them visible. These
invisible checkboxes always indicate that their values had been changed. As
a result all my data from the datagrid is sent to the database, even if no
changes has been made. As soon as I make these checkboxes visible -
everything works OK.

Why is this happening? Is there any workaround?

I would appreciate your help.

Thank you,

--
Peter Afonin
 
 
 

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I have a propertysheet object containing a number of propertypages. I
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I have a number of misc controls on the first propertypage. I have a
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The SysListView32 create() is done with WS_VISIBLE absent. A routine
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I then use a SetWindowPos() on the SysListView32, using
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When the propertysheet becomes visible, if I first click a control
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