ASP.net - 将焦点设置为编辑行

发布于 2024-08-14 16:17:32 字数 805 浏览 3 评论 0原文

单击编辑按钮后，如何将焦点设置到 datagridview 行中的特定控件？当网格绑定时，我可以对新行执行此操作，但不能对现有行执行此操作。该控件似乎还不存在。

'这不起作用（现有行）

Protected Sub gvDays_RowEditing(ByVal sender As Object, ByVal e As GridViewEditEventArgs) Handles gvDays.RowEditing
        Try
            gvDays.EditIndex = e.NewEditIndex
            gvDays.Rows(e.NewEditIndex).FindControl("txtDayText").Focus()
        Catch ex As Exception
            Helper.WriteException(ex)
        End Try
    End Sub

'这对新绑定的行有效

Private Sub gvDays_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles gvDays.RowDataBound
        If e.Row.RowState = DataControlRowState.Edit Then
            e.Row.Cells(3).Controls(0).Focus()
        End If
    End Sub

原文

How do you set focus to a specific control in a datagridview row after clicking the edit button? I'm able to do it for a new row when the grid is binding, but not for an existing row. The control doesn't seem to exist yet.

'This doesn't work (existing row)

Protected Sub gvDays_RowEditing(ByVal sender As Object, ByVal e As GridViewEditEventArgs) Handles gvDays.RowEditing
        Try
            gvDays.EditIndex = e.NewEditIndex
            gvDays.Rows(e.NewEditIndex).FindControl("txtDayText").Focus()
        Catch ex As Exception
            Helper.WriteException(ex)
        End Try
    End Sub

'This does work for a newly bound row

Private Sub gvDays_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles gvDays.RowDataBound
        If e.Row.RowState = DataControlRowState.Edit Then
            e.Row.Cells(3).Controls(0).Focus()
        End If
    End Sub

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我一向站在原地 2024-08-21 16:17:32

gvDays_RowDataBound 应该可以工作，问题是您正在使用 = 运算符查看 e.Row.RowState，但 RowState 是一个位标志，

试试这个

Private Sub gvDays_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles gvDays.RowDataBound
        If (e.Row.RowState And DataControlRowState.Edit) = DataControlRowState.Edit Then
            e.Row.Cells(3).Controls(0).Focus()
        End If
End Sub

gvDays_RowDataBound should work, the problem is you are looking at e.Row.RowState using the = operator, but RowState is a bitflag

try this

Private Sub gvDays_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles gvDays.RowDataBound
        If (e.Row.RowState And DataControlRowState.Edit) = DataControlRowState.Edit Then
            e.Row.Cells(3).Controls(0).Focus()
        End If
End Sub

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