解决asp.net中radio button的排他性在DataList控件中失效的BUG

来源：互联网发布：linux vim颜色设置编辑：程序博客网时间：2024/05/29 19:25

微软已证实这是一个Bug，要解决此问题，首先将下面的JavasScript代码放入前台文件：

function SetUniqueRadioButton(nameregex, current)

   re = new RegExp(nameregex);

   for(i = 0; i < document.forms[0].elements.length; i++)

      elm = document.forms[0].elements[i]

      if (elm.type == 'radio')

         if (re.test(elm.name))

            elm.checked = false;

   current.checked = true;

.csharpcode, .csharpcode pre{font-size: small;color: black;font-family: consolas, "Courier New", courier, monospace;background-color: #ffffff;/*white-space: pre;*/}.csharpcode pre { margin: 0em; }.csharpcode .rem { color: #008000; }.csharpcode .kwrd { color: #0000ff; }.csharpcode .str { color: #006080; }.csharpcode .op { color: #0000c0; }.csharpcode .preproc { color: #cc6633; }.csharpcode .asp { background-color: #ffff00; }.csharpcode .html { color: #800000; }.csharpcode .attr { color: #ff0000; }.csharpcode .alt {background-color: #f4f4f4;width: 100%;margin: 0em;}.csharpcode .lnum { color: #606060; }

然后将下面的VB.net代码加入后台文件：

    Protected Sub DataList1_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DataListItemEventArgs) Handles DataList1.ItemDataBound

        If e.Item.ItemType = ListItemType.Item Or e.Item.ItemType = ListItemType.AlternatingItem Then

            Dim rdo As RadioButton = CType(e.Item.FindControl("RadioButton1"), RadioButton)

            Dim script As String = "SetUniqueRadioButton('DataList1.*RadioGroup',this)"

            rdo.Attributes.Add("onclick", script)

        End If

    End Sub

这样就大功告成了。注意这里假设你的DataList控件ID为DataList1，RadioButton控件ID为RadioButton1，GroupName为RadioGroup，请按照你自己的实际情况修改。

参考链接：http://www.codeguru.com/csharp/csharp/cs_controls/custom/article.php/c12371/