Question

I have a dynamic gridview with data pulled from oracle database.

<asp:GridView ID="gvData" OnRowDataBound="gvData_RowDataBound" OnPreRender="gvData_PreRender" OnSelectedIndexChanged="gvData_SelectedIndexChanged" OnLoad="gvData_Load" OnRowCommand="gvData_RowCommand" runat="server" CellPadding="4" ForeColor="#333333" AllowPaging="True" AutoGenerateDeleteButton="True" AutoGenerateEditButton="True" DataSourceID="DS" AllowSorting="True" AutoGenerateSelectButton="True" PageSize="10" ShowFooter="True">
        <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
        <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
        <PagerStyle BackColor="#284775" ForeColor="White" />
        <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
        <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
        <EditRowStyle BackColor="#CCCCCC" />
        <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
    </asp:GridView>
    <asp:SqlDataSource ID="DS" runat="server">
    </asp:SqlDataSource>

I am trying to write DELETE/UPDATE statements. I am having a problem with getting values from gridview and adding them to the parameters os SQL statements.

protected void gvData_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
    DS.DeleteCommand =
            "DELETE FROM TABLE " +
            "WHERE PROBLEM_DEPTH_MD = :PROBLEM_DEPTH_MD";
            "AND API = :API " +
            "AND BUS_AREA_ID = :BUS_AREA_ID";
    DS.DeleteParameters.Add(new Parameter("PROBLEM_DEPTH_MD", TypeCode.String, ??GridViewItemValue??));
}

I don’t know how to get a value from the gridview. Any suggestions? Thanks!

Answer 1

First off you need to mention the DataKeyName to your gridview of your Primary key Column and then you can access the value of the Selected row of the Gridview like… e.Keys["DataKeyName"]

If you want to access a non key field, then it should be like… e.Values["FieldName"]

Mention DataKeyName like… <asp:GridView ID="gvData" DataKeyNames="PrimaryKeyColumn"