javascript - 在服务器端检索 anchor 的颜色

Question

我正在检索服务器端 html anchor 控件的颜色。以下是我试过的代码

设计:

<a id="lkdelete" onclick="SingleDel(this);" runat="server" style="font-weight:bold ">Delete</a>

Javascript:

function SingleDel(ctrl)
{
    var row=ctrl.parentNode.parentNode;//to get row containing image
    var rowIndex=row.rowIndex;//row index of that row.
    var hsingle_del=document.getElementById('<%hsingle_del.ClientId %>');
    hsingle_del.value=rowIndex;
    var modalPopupBehaviorCtrl = $find('bmpe');            
    modalPopupBehaviorCtrl.set_PopupControlID("pnlPopup");  
    modalPopupBehaviorCtrl.show();   
}

Vb.Net:

    Dim pid As String = ""
    For Each r As GridViewRow In gridview.Rows
        Dim lnk As HtmlAnchor = CType(r.Cells(1).FindControl("lkdelete"), HtmlAnchor)

        If lnk.Style("Color") = "Red" Then  
            pid = CType(r.FindControl("lblposid"), Label).Text
        End If
    Next

此处 gridview 的第一行颜色为红色。但它返回“”。有什么解决办法吗？

Answer 1

对您的代码进行少量更改。在您的页面上添加隐藏字段。

function SingleDel(ctrl)
{
    var rowIndex=ctrl.offsetParent.parentNode.rowIndex-1;
    var hsingle_del=document.getElementById('<%=hsingle_del.ClientId %>');
    hsingle_del.value=rowIndex;
    var modalPopupBehaviorCtrl = $find('bmpe');            
    modalPopupBehaviorCtrl.set_PopupControlID("pnlPopup");  
    modalPopupBehaviorCtrl.show();   
}

vb(代替 for 循环)

pid = CType(gridview.Rows(hsingle_del.Value).FindControl("lblposid"), Label).Text