Question

DeleteCommand in GridView Not Responding

Asked by: NP2322

I have a gridview on me .aspx page and i'm trying to get the deletecommand to work. When i click it, the page gets refreshed but the item i clicked to delete remains both on the page and in the database. Below is an example of my source. I had it working at one point and then I changed some things around and it stopped responding.

        <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
            SelectCommand="SELECT [UserName], [Email], [PermissionName], [LastLoginDate] FROM [vw_aspnet_UserInfo]"
            Deletecommand="DELETE FROM aspnet_Users WHERE UserName = @original_UserName">
            <DeleteParameters >
                <asp:Parameter Name="original_UserName" Type="String" />
            </DeleteParameters>
       
        </asp:SqlDataSource>

Does anyone see where i'm going wrong or what i could be doing differently? I'm new to ASP.Net and so i'm still trying to get a hold of things.

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Asked On
2006-10-27 at 15:00:05ID22040513
Tags

gridview

,

delete

,

deletecommand

Topic

Programming for ASP.NET

Participating Experts
4
Points
250
Comments
6

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Answers

 

by: daniel_ballaPosted on 2006-10-27 at 15:03:44ID: 17822738

Hi NP2322,
can you post your gridview source as well?

Cheers!
Dani

 

by: NP2322Posted on 2006-10-27 at 15:44:04ID: 17822939

just left work, i'll get it on here on Monday.

Thanks!

 

by: rhencullenPosted on 2006-10-27 at 15:48:27ID: 17822972

Check the definition of your SqlDataSource.

If you're not using optimistic  concurrency, but have an updatable key-column then In the definition for your SqlDataSource you need to make sure that you have "OldValuesParameterFormatString="original_" defined.

Paul

 

by: craskinPosted on 2006-10-27 at 16:31:10ID: 17823243

rhen is probably right. the reason you see the page refresh is because the datasource is running the sql, but there's nothing telling it what that parameter is, so it doesn't delete anything.

 

by: sammePosted on 2006-10-28 at 11:24:29ID: 17826385

You can also try adding  ", UserName" in the datakeynames property of the gridview

 

by: NP2322Posted on 2006-10-30 at 06:39:02ID: 17833858

Gridview source:

                    <asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"
                        CellPadding="4" DataSourceID="SqlDataSource1" ForeColor="#333333" GridLines="None">
                        <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
                        <Columns>
                            <asp:CommandField ShowDeleteButton="True" />
                            <asp:BoundField DataField="UserName" HeaderText="UserName" SortExpression="UserName" />
                            <asp:BoundField DataField="Email" HeaderText="Email" SortExpression="Email" />
                            <asp:BoundField DataField="PermissionName" HeaderText="PermissionName" SortExpression="PermissionName" />
                            <asp:BoundField DataField="LastLoginDate" HeaderText="LastLoginDate" SortExpression="LastLoginDate" />
                        </Columns>
                        <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
                        <EditRowStyle BackColor="#999999" />
                        <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
                        <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
                        <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
                        <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
                    </asp:GridView>


I tried adding "OldValuesParameterFormatString="original_", didn't seem to work. Any other ideas?

20120131-EE-VQP-002

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