Question

我这样做：

 if (e.Row.Cells[3].Text != null && e.Row.Cells[3].Text != "&nbsp;" 
          && e.Row.Cells[3].Text != "")
 {
     e.Row.Cells[3].Attributes.Add("readonly", "true");
 }

但它不起作用。当cell为空或包含“”时，我需要将readonly属性设置为true。

Answer 1

没有direct way将Gridview column设置为readonly 但是，您可以在Gridivew的controls to readonly事件中设置该列中的RowDataBound。 e.g。

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowState == DataControlRowState.Edit || e.Row.RowState == DataControlRowState.Alternate)
    {
        TextBox txt = (TextBox)e.Row.FindControl("ControlID");
        txt.ReadOnly = true;
    }
}

Answer 2

对于绑定字段，您可以假设Controls（0）是您想要的控件。

因此这有效：

    Protected Sub DropDownListNoVariation_SelectedIndexChanged(sender As Object, e As EventArgs)
    Dim sourceGridViewRow As GridViewRow
    Dim sourceDropDown As DropDownList
    Dim TargetTextBox As TextBox

    sourceGridViewRow = sender.Parent.Parent
    sourceDropDown = sender
    If sourceDropDown.Text = "True" Then
        TargetTextBox = sourceGridViewRow.Cells(4).Controls(0)
        TargetTextBox.ReadOnly = True
        TargetTextBox = sourceGridViewRow.Cells(5).Controls(0)
        TargetTextBox.ReadOnly = True
    Else
        TargetTextBox = sourceGridViewRow.Cells(4).Controls(0)
        TargetTextBox.ReadOnly = False
        TargetTextBox = sourceGridViewRow.Cells(5).Controls(0)
        TargetTextBox.ReadOnly = False
    End If

End Sub

Answer 3

这会有用吗？

if (e.Row.Cells[3].Text != null && e.Row.Cells[3].Text != "&nbsp;" && e.Row.Cells[3].Text != "")
 {
     e.Row.Cells[3].ReadOnly = true;
 }

似乎BoundField似乎有ReadOnly property。但我现在不确定e.Row.Cells[3]是BoundField类型。也许您可能需要将其投射到BoundField

如何在BoundFiled Cell中设置readonly属性为true？

3 个答案: