Question

GridView绑定到Access Table，但我想使用asp：ButtonField更新复选框。我能做的最好的事情是用一个字符串值替换复选框。以下是我现在的代码：

Protected Sub GridView1_RowCommand(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewCommandEventArgs) Handles GridView1.RowCommand
    If e.CommandName = "check" Then
        'Enable Editing on the GridView
        GridView1.EditIndex = GridView1.SelectedIndex
        'Assign value to the row selected
        Dim index As Integer = Convert.ToInt32(e.CommandArgument)
        'Assign selected gridview row
        Dim selectedRow As GridViewRow = GridView1.Rows(index)
        'Assign checkbox cell as table cell
        Dim selectedCell As TableCell = selectedRow.Cells(0)

        'Assign a value to the checkbox, **but instead is replacing the checkbox**
        selectedCell.Text = "True"
    End If
End Sub

感谢任何和所有帮助！

Answer 1

我认为您需要使用.FindControl()。

GridViewCell与其中的CheckBox控件不同。您的代码应该看起来更像：

Protected Sub GridView1_RowCommand(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewCommandEventArgs) Handles GridView1.RowCommand
    If e.CommandName = "check" Then
        'Enable Editing on the GridView
        GridView1.EditIndex = GridView1.SelectedIndex
        'Assign value to the row selected
        Dim index As Integer = Convert.ToInt32(e.CommandArgument)
        'Assign selected gridview row
        Dim checkBox As CheckBox = GridView1.Rows(index).FindControl("checkBoxIdGoesHere")

        checkBox.Checked = true 'or false or whatever based on your command.
    End If
End Sub

Answer 2

我在GridViews中访问控件时遇到了一些问题。一个月前我解决了类似的问题。假设您的复选框控件是该单元格中唯一的东西，您可以尝试这样的事情：

'Assign a value to the checkbox
CType(GridView1.Rows(index).Cells(0).Controls(0), CheckBox).Checked = True

试一下，看看它是否有效。如果没有，请回复，我们可以再看看。

使用ASP.NET 2005中的asp：ButtonField以编程方式更新GridView中的绑定复选框

2 个答案: