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Data binding won't update source.

Posted on 2009-07-15
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Last Modified: 2013-11-26
I have a checkbox in a template field in a gridview.  Two way binding is set for the checkbox control.  But, checking the checkbox does not update the source table.

(Line 26 in the code is the actual bind)

What might I be missing?  Thanks.
<asp:GridView ID="GridViewBrowse" runat="server" AllowSorting="True" 
                        BackColor="White" BorderColor="White" BorderStyle="Ridge"
                        BorderWidth="2px" CellPadding="3" CellSpacing="1" CssClass="TableFont" DataSourceID="SqlDataSourceBrowse"
                        EmptyDataText="Records will be displayed here.  Click select on a record for detailed data"
                        GridLines="None" Height="1px" PageSize="6" TabIndex="3" Width="762px" 
                        AutoGenerateColumns="False">
                        <FooterStyle BackColor="#C6C3C6" ForeColor="Black" />
                        <Columns>
                            <asp:BoundField DataField="TicketID" HeaderText="TicketID" SortExpression="TicketID" />
                            <asp:BoundField DataField="Reception Number" HeaderText="Reception Number" SortExpression="Reception Number" />
                            <asp:BoundField DataField="Submitted By" HeaderText="Submitted By" SortExpression="Submitted By" />
                            <asp:BoundField DataField="Submit Date" HeaderText="Submit Date" 
                                SortExpression="Submit Date" />
                            <asp:BoundField DataField="Update Type" HeaderText="Update Type" SortExpression="Update Type" />
                            <asp:BoundField DataField="Brief Desc" HeaderText="Brief Desc" 
                                SortExpression="Brief Desc">
                            </asp:BoundField>
                            <asp:BoundField DataField="Submiters Comments" HeaderText="Submiters Comments" 
                                SortExpression="Submiters Comments" />
                            <asp:BoundField DataField="Complete" HeaderText="Complete" 
                                SortExpression="Complete" />
                            <asp:BoundField DataField="Schedule Count" HeaderText="Schedule Count" 
                                SortExpression="Schedule Count" />
                            <asp:TemplateField HeaderText="test templet">
                                <ItemTemplate>
                                    <asp:CheckBox ID="CheckBox2" runat="server" Checked='<%# Bind("Archived") %>' 
                                        AutoPostBack="True" oncheckedchanged="CheckBox2_CheckedChanged" />
                                </ItemTemplate>
                            </asp:TemplateField>
                        </Columns>
                        <RowStyle BackColor="#DEDFDE" ForeColor="Black" />
                        <EditRowStyle Wrap="False" />
                        <SelectedRowStyle BackColor="#9471DE" Font-Bold="True" ForeColor="White" />
                        <PagerStyle BackColor="#C6C3C6" ForeColor="Black" HorizontalAlign="Right" />
                        <HeaderStyle BackColor="#4A3C8C" Font-Bold="True" ForeColor="#E7E7FF" />
                    </asp:GridView>

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Question by:sabev
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Author Comment

by:sabev
ID: 24863062
Or, if when CheckBox_CheckedChanged event is fired, if I could determine the row of the GridView the checkbox is in, that would be even better.  It should have some parent and location information, shouldn't it?

thanks
0
 

Author Comment

by:sabev
ID: 24869082
(Notes for the OP):

The original databinding problem is not so much an issue as getting the RowIndex when the checkbox is changed.

hmm....  I have tried adding onRowCommand="MyDataGrid_EditCommand" to the <asp:GridView object, hoping it would call the code behind "MyDataGrid_EditCommand" sub routine when the checkbox is checked but it does not call it.

It does not seem like I can pass the RowIndex on the CheckBox_CheckedChanged event.

Is there some event within the GridView that I can get to fire when a checkbox located in a template is checked?

I've tried -
OnRowCommand
OnRowEditing
OnRowUpdating

With no luck.

Thanks
0
 

Accepted Solution

by:
sabev earned 0 total points
ID: 24870376
I figured it out...  at least how the get the row index on check box changed.  That will solve my problem
It's simple.

    Protected Sub CheckBox2_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs)
        Dim gvRow As GridViewRow
        Dim chkbx As CheckBox
        Dim intRowIndex As Integer

        chkbx = sender
        gvRow = chkbx.Parent.Parent
        intRowIndex = gvRow.RowIndex
' perform work agains that row here
end sub


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