我在数据网格外使用Checkbox。当我选中复选框autopostback为true时,这将显示图像,但我无法使用该脚本访问datagrid中的图像。如果我在数据网格之外使用单独的图像,则脚本可以正常工作。如何检查数据网格的复选框输出然后在数据网格中显示图像时,如何才能找到此脚本?
我正在使用的脚本是
<script runat="server">
Sub Check(sender As Object, e As EventArgs)
If checkShowImages.Checked Then
img.Visible = True
Else
img.Visible = False
End If
End Sub
</script>
答案 0 :(得分:1)
试试这个(假设您的checkbox
的ID是“CheckBox1”而且DataGrid
的ID是“Datagrid1”)...
Sub Check(sender As Object, e As EventArgs)
For Each r As DataGridItem In Datagrid1.Items
Try
r.FindControl("img").Visible = CheckBox1.Checked
Catch ex As Exception
End Try
Next
end sub
希望这会有所帮助。祝你好运。
答案 1 :(得分:0)
如果我理解正确,当您选择外部复选框时,您希望在GridView中显示图像。为此,您需要迭代遍历GridView的行,如下所示:
foreach (GridViewRow row in myGrid.Rows)
{
Image myImage = row.FindControl("HiddenImage") as Image;
//Hide or show image based on checkbox state
myImage.Visible = checkShowImages.Checked;
}
VB(有点生疏):
For Each row As GridViewRow In myGrid.Rows
Dim myImage As Image = TryCast(row.FindControl("HiddenImage"), Image)
'Hide or show image based on checkbox state
myImage.Visible = checkShowImages.Checked
Next