将下拉绑定到网格视图

Question

i have a one drop down list containing the list of items. each item is further connecting to different table. there is gridview that show the selected table by selecetd item in drop down list. how is it possible? that to show the selected table f

Answer 1

gridView.DataSource = tableCollection[dropDownList.SelectedValue];

Answer 2

You can use this for your dropdown in your gridview.

  <asp:TemplateField HeaderText="Item Condition" HeaderStyle-Width="80px" HeaderStyle-HorizontalAlign="Center" ItemStyle-Width="40px>
          <ItemTemplate>
            <asp:DropDownList ID="ddlConditions" runat="server" >  
            </asp:DropDownList>
          </ItemTemplate>
        </asp:TemplateField>

Under your grid "RowDataBound" event, you will bind your dropdown in code behind using dropdown id.

DropDownList ddlConditions2 = (e.Row.FindControl("ddlConditions") as DropDownList);
                DataTable dt = _reader.GetDataTableByCommandFromStoredProc("getYourDropdownData");
                ddlConditions2.DataSource = dt;
                ddlConditions2.DataTextField = "ConditionName";
                ddlConditions2.DataValueField = "Id";
                ddlConditions2.DataBind();
                ddlConditions2.Items.Insert(0, new ListItem("--Select--", "0"));