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我想在我的GridView gvTaskDashboard中为OnRowUpdating构建一些处理。我希望检查是否状态下拉列表中的“已完成”选中,日期已输入完整日期文本框中。我敢肯定,问题出在我的if语句试图测试Complete,但因为下拉列表绑定到一个sql表的索引,我不知道如何检查所选索引的文本值。我相信我可以通过使用if (ddlStatus.SelectedValue == "5")
例如,但作为一个编码器,我认为从维护的角度来看,检查“完成”更有意义。需要访问下拉列表中的记录文本
标记为DDL
<asp:DropDownList ID="ddlStatus" runat="server" AutoPostBack="True" DataSourceID="ddlStatusSQL"
DataTextField="TaskStatusName" DataValueField="TaskStatusID" SelectedValue='<%# Bind("TaskStatusID") %>'>
</asp:DropDownList>
SQL数据源的DDL
<asp:SqlDataSource ID="ddlStatusSQL" runat="server" ConnectionString="<%$ ConnectionStrings:ProWorxConnectionString %>"
SelectCommand="SELECT [TaskStatusID], [TaskStatusName] FROM [tblTaskStatus]
ORDER BY [TaskStatusType], [TaskStatusName]">
</asp:SqlDataSource>
代码隐藏
protected void gvTask_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
GridViewRow gvr = gvTaskDashboard.Rows[e.RowIndex];
// Get Controls
DropDownList ddlStatus = (DropDownList)gvr.FindControl("ddlStatus");
TextBox txtCompDate = (TextBox)gvr.FindControl("txtCompDate");
// Test for Complete Date if Complete status selected
if (string.IsNullOrWhiteSpace(txtCompDate.Text) && ddlStatus.SelectedValue == "Complete")
{
// Throw Error
ClientScript.RegisterStartupScript(GetType(), "error", "alert('Enter Complete Date if Status is Complete.');", true);
}
else { TaskDashboardSQL.Update(); }
}