我有一个gridview,在其中一个单元格中填充了下拉列表。 这是gridview代码:
<asp:GridView ID="viewThemeTypeAssociationsGridView" runat="server" AutoGenerateColumns="False" BackColor="#DEBA84" BorderColor="#DEBA84" BorderStyle="None" BorderWidth="1px" CellPadding="3" CellSpacing="2" DataSourceID="SqlDataSource6" OnRowDataBound="viewThemeTypeAssociationsGridView_OnRowDataBound">
<Columns>
<asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" />
<asp:BoundField DataField="Type" HeaderText="Type" SortExpression="Type" />
<asp:TemplateField HeaderText="Choose Theme Type">
<ItemTemplate>
<asp:DropDownList ID="chooseThemeTypeDropDown" runat="server" DataTextField="Type" DataValueField="PK_ThemeType" AutoPostBack="true" DataSourceID="SqlDataSource9" CssClass="dropDownList" OnDataBound="chooseThemeTypeDropDown_OnDataBound" Visible="false" OnSelectedIndexChanged="chooseThemeTypeDropDown_OnSelectedIndexChanged"> </asp:DropDownList>
<asp:SqlDataSource ID="SqlDataSource9" runat="server" ConnectionString="<%$ ConnectionStrings:ApplicationServices %>"
SelectCommand="SELECT [Type], [PK_ThemeType] FROM [ThemeType] WHERE [Deleted] = 0 ORDER BY [Type] ASC">
</asp:SqlDataSource>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="#F7DFB5" ForeColor="#8C4510" />
<HeaderStyle BackColor="#A55129" Font-Bold="True" ForeColor="White" />
<PagerStyle ForeColor="#8C4510" HorizontalAlign="Center" />
<RowStyle BackColor="#FFF7E7" ForeColor="#8C4510" />
<SelectedRowStyle BackColor="#738A9C" Font-Bold="True" ForeColor="White" />
<SortedAscendingCellStyle BackColor="#FFF1D4" />
<SortedAscendingHeaderStyle BackColor="#B95C30" />
<SortedDescendingCellStyle BackColor="#F1E5CE" />
<SortedDescendingHeaderStyle BackColor="#93451F" />
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource6" runat="server" ConnectionString="<%$ ConnectionStrings:ApplicationServices %>"
SelectCommand="SELECT [Theme].[Name], [ThemeType].[Type] FROM [Theme] LEFT OUTER JOIN [ThemeType] ON [Theme].[ThemeTypeId] = [ThemeType].[PK_ThemeType] JOIN [ProductTheme] ON [ProductTheme].[ThemeId]=[Theme].[PK_Theme] WHERE ProductTheme.ProductID LIKE @productParam AND ProductTheme.ThemeId = Theme.PK_Theme AND COALESCE([THEME].[THEMETYPEID], 'null') LIKE @assignedParam GROUP BY [Theme].[Name], [ThemeType].[Type] ORDER BY CASE WHEN [ThemeType].[Type] IS NULL THEN 0 ELSE 1 END, [Theme].[Name]">
<SelectParameters>
<asp:QueryStringParameter Name="productParam" Type="String" />
<asp:QueryStringParameter Name="assignedParam" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
以下是使用下拉列表填充单元格的代码:
protected void viewThemeTypeAssociationsGridView_OnRowDataBound(Object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
if (e.Row.Cells[1].Text == " ")
{
e.Row.Cells[1].Text = "Not Assigned";
DropDownList chooseThemeTypeDropDown = (DropDownList)e.Row.FindControl("chooseThemeTypeDropDown");
chooseThemeTypeDropDown.Visible = true;
}
}
}
我不仅需要访问所选下拉列表的数据键值,还需要访问它所在的行。以下是我到目前为止的情况:
protected void chooseThemeTypeDropDown_OnSelectedIndexChanged(object sender, EventArgs e)
{
DropDownList chooseThemeTypeDropDown = sender as DropDownList;
if (chooseThemeTypeDropDown != null)
{
System.Diagnostics.Debug.WriteLine(chooseThemeTypeDropDown.SelectedItem.Value.ToString());
}
}
上面的方法没有做任何具体的让我只是想获取值。我正在获取数据键值但是如何获取它所在的行?
答案 0 :(得分:1)
您可以通过查找下拉列表中的祖父母(.Parent.Parent
)找到网格视图行,因为下拉列表位于行的单元格内,该行是行本身的一部分,因此你需要升级两级,如下:
protected void chooseThemeTypeDropDown_OnSelectedIndexChanged(object sender, EventArgs e)
{
DropDownList chooseThemeTypeDropDown = sender as DropDownList;
if (chooseThemeTypeDropDown != null)
{
System.Diagnostics.Debug.WriteLine(chooseThemeTypeDropDown.SelectedItem.Value.ToString());
GridViewRow row = (GridViewRow)chooseThemeTypeDropDown.Parent.Parent;
}
}