how to add +/- button to a gridview for expanding and collapsing it( in relationship to the code in the link below)

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how to add +/- button to a gridview for expanding and collapsing it( in relationship to the code in the link below)
How to Create TreeView Type GridView[^]

Posted 25-Jan-14 20:50pm

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Karthik_Mahalingam 26-Jan-14 3:06am

what problem u r facing?

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idenizeni · Accepted Answer · 2014-01-25T23:16:00

For the GridView to work with the code in the link you provided you need, at minimum, the following settings.

ASP.NET

<asp:GridView ID="GridView1" runat="server" OnRowCommand="GridView1_RowCommand" OnRowCreated="GridView1_RowCreated" OnRowDataBound="GridView1_RowDataBound">
<Columns>
    <asp:TemplateField HeaderText="Root">
        <ItemTemplate>
            <asp:Button ID="MinBT" runat="server" CommandName="_Hide" Text="-" />
            <asp:Button ID="PluseBT" runat="server" CommandName="_Show" Text="+" Visible="false"/>
        </ItemTemplate>
    </asp:TemplateField>
</Columns>
</asp:GridView>