GridView--选择行

原理:

在我们点击GridView默认生成的选择,编辑,删除按钮时,会产生postback参数.可以查看源代码:

<td>
<a href="javascript:__doPostBack('ctl00$cp$GvDeparments','Edit$0')">编辑</a>
<a href="javascript:__doPostBack('ctl00$cp$GvDeparments','Delete$0')">删除</a>
<a href="javascript:__doPostBack('ctl00$cp$GvDeparments','Select$0')">选择</a>
</td>

<td>
<a href="javascript:__doPostBack('ctl00$cp$GvDeparments','Edit$1')">编辑</a>
<a href="javascript:__doPostBack('ctl00$cp$GvDeparments','Delete$1')">删除</a>
<a href="javascript:__doPostBack('ctl00$cp$GvDeparments','Select$1')">选择</a>
</td>

说明:

function __doPostBack(eventTarget, eventArgument) {
    if (!theForm.onsubmit || (theForm.onsubmit() != false)) {
        theForm.__EVENTTARGET.value = eventTarget;
        theForm.__EVENTARGUMENT.value = eventArgument;
        theForm.submit();
    }
}

 

此为asp.net内置函数.

我们可以使用Edit$,Delete$,Select$参数来做提交.具体如下:

以下代码都是在GridView的RowDataBound事件中写的.

代码	if (e.Row.RowType == DataControlRowType.DataRow) { e.Row.Attributes["onclick"] = "javascript:__doPostBack('" + GvDeparments.ClientID.Replace('_', '$') + "','Select$" + e.Row.RowIndex + "')"; }
源文件	<tr onclick="javascript:__doPostBack('ctl00$cp$GvDeparments','Select$3')"> ... </tr>

 

代码	if (e.Row.RowType == DataControlRowType.DataRow) { e.Row.Attributes["onclick"] = ClientScript.GetPostBackClientHyperlink(this.GvDeparments, "Select$" + e.Row.RowIndex); }
源文件	<tr onclick="javascript:__doPostBack('ctl00$cp$GvDeparments','Select$3')"> ... </tr>

 

代码	if (e.Row.RowType == DataControlRowType.DataRow) { e.Row.Attributes["onclick"] = ClientScript.GetPostBackEventReference(this.GvDeparments, "Select$" + e.Row.RowIndex); }
源文件	<tr onclick="__doPostBack('ctl00$cp$GvDeparments','Select$3')"> ... </tr>

 

注意查看源代码的onclick事件.