Question

我在GridView中有列（验证），此列包含两个值'v'或'notv'我想从myGridview获取值' v '并将其更改为' 有效'和其他' notv '到'未验证'..我已经尝试GridView1.Rows(i).Cells(10).Text但是没有任何改变我的Gridview会显示出来。

这是我的代码：

当我点击Button：

时，GridView显示出来

<asp:GridView ID="GridView1" runat="server" CssClass="table" GridLines="None">
                           </asp:GridView>

“page.aspx.vb

cmd.Connection = cx
        cmd.CommandText = "select .., validate from table"
        da = New SqlDataAdapter(cmd)
        da.Fill(dt)
        GridView1.DataSource = dt
        GridView1.DataBind()
        For i = 0 To GridView1.Rows.Count - 1
            GridView1.Rows(i).Cells(0).ForeColor = System.Drawing.Color.Blue
            If GridView1.Rows(i).Cells(10).Text = "v" Then
                GridView1.Rows(i).Cells(10).Text = "VALIDATE"
                GridView1.Rows(i).Cells(10).ForeColor = System.Drawing.Color.Green
            ElseIf GridView1.Rows(i).Cells(10).Text = "Notv" Then
                GridView1.Rows(i).Cells(10).Text = "Not VALIDATE"
                GridView1.Rows(i).Cells(10).ForeColor = System.Drawing.Color.Red
            End If
        Next

感谢您的时间！

Answer 1

首先应该在rowdatabound事件

上

然后你可以尝试修剪空格，可能会造成问题

If GridView1.Rows(i).Cells(10).Text = "v" Then
                GridView1.Rows(i).Cells(10).Text = "VALIDATE"

更改为

If GridView1.Rows(i).Cells(10).Text.Trim() = "v" Then
                GridView1.Rows(i).Cells(10).Text = "VALIDATE"

还检查rowdatabound事件中的标题行

如果gridview有绑定字段然后它应该工作，如果你使用模板，那么你应该使用find控件来查找特定控件然后更改其值

Answer 2

对我来说就像没有使用RowDataBound那样：

这是背后的代码：

For i = 0 To GridView1.Rows.Count - 1
        GridView1.Rows(i).Cells(0).ForeColor = System.Drawing.Color.Blue
        If GridView1.Rows(i).Cells(10).Text = "v" Then
            GridView1.Rows(i).Cells(10).Text = "VALIDATE"
            GridView1.Rows(i).Cells(10).ForeColor = System.Drawing.Color.Green
        ElseIf GridView1.Rows(i).Cells(10).Text = "Notv" Then
            GridView1.Rows(i).Cells(10).Text = "Not VALIDATE"
            GridView1.Rows(i).Cells(10).ForeColor = System.Drawing.Color.Red
        End If
    Next

谢谢大家的回答！

Answer 3

尝试在GridView RowDataBound事件中进行更改，例如

 Protected Sub GridView1_RowDataBound(sender As Object, e As GridViewRowEventArgs) Handles GridView1.RowDataBound
        'Do stuff with e.Row.Cells(0)
        'Do stuff with e.Row.Cells(10)
        'etc...
 End Sub

它会为绑定到数据表的每一行触发，因此您不必循环遍历行。

使用VB.net从gridview获取列值

3 个答案: