先說說我的方法吧,不是最好的,卻是代碼量最少的
一行:
e.Row.Attributes["onclick"] = ClientScript.GetPostBackClientHyperlink(this.gvUsers, "select$" + e.Row.RowIndex);
呵呵有點誇張了,具體做法是在GridView的RowDataBound事件裡寫這麼寫:
protected void gvUsers_RowDataBound(object sender, GridViewRowEventArgs e)
{
e.Row.Attributes["onclick"] = ClientScript.GetPostBackClientHyperlink(this.gvUsers, "select$" + e.Row.RowIndex);
e.Row.Attributes["style"] = "cursor:pointer";
}
原理很簡單,在ASP.NET的頁面Render時,GridView的選擇、刪除、編輯 等事件會產生簡單的postback 參數,分別是select$, Update$, Edit$...
這樣就給我們帶來了很大的便利,在上面的例子中,就使用了Select$方式
與這個方法類似或幾乎相同的還有:
來自http://www.cnblogs.com/xioxu/articles/473369.html的:(這位園友添加了RowType的判斷,good!)
protected void grdView_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
e.Row.Attributes.Add("onClick", "javascript:__doPostBack('"+grdView.ID+"','Select$"+e.Row.RowIndex+"');");
}
}
來自http://www.cnblogs.com/easydata/articles/924947.html的:(確實,我們還可以像這位園友一樣,給Row添加許多用戶端效果,比如onmouseover之類的)
protected override void Render(HtmlTextWriter writer)
{
foreach (GridViewRow Row in GridView1.Rows)
{
if (Row.RowType == DataControlRowType.DataRow)
{
Row.Attributes["ondblclick"] = ClientScript.GetPostBackEventReference(GridView1, "Select$" + Row.RowIndex.ToString(), true);
Row.Attributes["style"] = "cursor:pointer";
Row.Attributes["title"] = "雙擊選擇行";
}
}
base.Render(writer);
}
OK,上面的做法都是通過JavaScript實現,但還是發生了PostBack,如果想實現完全的AJAX選取,還是請參考李永京前輩的文章:
http://www.cnblogs.com/lyj/archive/2008/05/10/1191275.html
其原理是藉助HiddenField來實現用戶端的"Select"(不是真正的select了那一行..)