Asp.net 如何查找GridView行命令事件上的控件?
我尝试过类似的方法,但没有成功:Asp.net 如何查找GridView行命令事件上的控件?,asp.net,gridview,aspxgridview,Asp.net,Gridview,Aspxgridview,我尝试过类似的方法,但没有成功: GridViewRow row = (GridViewRow)(((Repeater)e.CommandSource).NamingContainer); Repeater _rpt1 = row.Cells[8].FindControl("rptReg") as Repeater; 错误: Unable to cast object of type 'System.Web.UI.WebControls.Button' to type 'System.Web
GridViewRow row = (GridViewRow)(((Repeater)e.CommandSource).NamingContainer);
Repeater _rpt1 = row.Cells[8].FindControl("rptReg") as Repeater;
错误:
Unable to cast object of type 'System.Web.UI.WebControls.Button' to type 'System.Web.UI.WebControls.Repeater'.
是否有一种方法可以使用GridView在OnRowCommand
事件中生成以下代码
实际上,我正在尝试从gridview控件中删除该行,当用户单击该行时,我将获取多个ID并将其传递给SP并更新该表,然后数据绑定gridview
GridViewRow row = gv.SelectedRow;
Repeater _rpt = gv.Rows[e.RowIndex].Cells[8].FindControl("rptReg") as Repeater;
Repeater _rpt1 = gv.Rows[e.RowIndex].Cells[9].FindControl("rptVisitor") as Repeater;
foreach (RepeaterItem item in _rpt.Items)
{
TextBox _txt = item.FindControl("txtId") as TextBox;
TextBox _txt1 = item.FindControl("txtName") as TextBox;
//update db
}
您的错误告诉我名为“rptReg”的控件是一个按钮 GridView有一个名为DataKeys的属性,它可以保存多个ID 所以你会拿出“人形”像: 请试试这个:
var viewRow = (GridViewRow)(((ImageButton)e.CommandSource).NamingContainer);
foreach (GridViewRow gvr in gvDetails.Rows)
{
var btnSelect = (ImageButton)viewRow.FindControl("btnSelect");
if (gvr == viewRow)
{
if (btnSelect.ImageUrl.ToLower() == "~/images/rbnormal.jpg")
{
btnSelect.ImageUrl = "~/Images/rbSelected.jpg";
btnSelect.Enabled = false;
}
}
else
{
btnSelect.ImageUrl = "~/Images/rbnormal.jpg";
btnSelect.Enabled = true;
}
}
我不确定我是否遵循,但在OnRowCommand中,您可以检查e.CommandName==“delete”是否正确,但我遇到了一种情况,我正在寻找一种方法在RowCommand中执行FindControl?我猜中继器将为空?也许您应该将gv定义为“Gridview gv=(Gridview)sender”;如果我更改为
Gridview
,那么您将如何获取单元格
?您是否在Gridview中使用中继器控件?gvDetails未定义。
var viewRow = (GridViewRow)(((ImageButton)e.CommandSource).NamingContainer);
foreach (GridViewRow gvr in gvDetails.Rows)
{
var btnSelect = (ImageButton)viewRow.FindControl("btnSelect");
if (gvr == viewRow)
{
if (btnSelect.ImageUrl.ToLower() == "~/images/rbnormal.jpg")
{
btnSelect.ImageUrl = "~/Images/rbSelected.jpg";
btnSelect.Enabled = false;
}
}
else
{
btnSelect.ImageUrl = "~/Images/rbnormal.jpg";
btnSelect.Enabled = true;
}
}