GridView 加载空行并点击编辑每一个单元格

代码

< script runat = " server " >
protected void Button1_Click( object sender, System.EventArgs e)
{
GridView1.DataSource = GetData();
GridView1.DataBind();
}

protected void Button2_Click( object sender, System.EventArgs e)
{
string s = String.Empty;
for ( int i = 0 ; i < 5 ; i ++ )
{
for ( int j = 0 ; j < 5 ; j ++ )
{
s = s + " <li>第 " + i.ToString() + " 行第 " + j.ToString() + " 列的值是： " + Request.Form[ " txt " + i.ToString() + " _ " + j.ToString()];
}
}
ret.Text = s;
// 以下代码只是为了实现在表格里面保留原来的值，如果不需要则可以删除。
GridView1.DataSource = GetData();
GridView1.DataBind();
}

protected void GridView1_RowDataBound( object sender, System.Web.UI.WebControls.GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
System.Data.DataRowView dv = (System.Data.DataRowView)e.Row.DataItem;
for ( int i = 0 ; i < e.Row.Cells.Count; i ++ )
{
e.Row.Cells[i].Attributes.Add( " onclick " , " showEdit( " + e.Row.RowIndex.ToString() + " , " + i.ToString() + " ) " );
e.Row.Cells[i].Text = " <input onblur='lostfocus(this)' name='txt " + e.Row.RowIndex.ToString() + " _ " + i.ToString() + " ' readonly='readonly' class='noborder' value=' " + dv[i].ToString() + " '/> " ;
}
}
}

private System.Data.DataTable GetData()
{
System.Data.DataTable dt = new System.Data.DataTable();
for ( int i = 0 ; i < 5 ; i ++ )
{
dt.Columns.Add( new System.Data.DataColumn( "" , typeof (System.String)));
}

for ( int i = 0 ; i < 5 ; i ++ )
{
dt.Rows.Add(dt.NewRow());
for ( int j = 0 ; j < 5 ; j ++ )
{
dt.Rows[i][j] = Request.Form[ " txt " + i.ToString() + " _ " + j.ToString()];
}
}
return dt;
}

</ script >

< html xmlns = " http://www.w3.org/1999/xhtml " >
< head id = " Head1 " runat = " server " >
< title ></ title >
< style type = " text/css " >
.noborder{border - width: 0px;margin:2px;}
.hasborder{border - width: 2px;}
</ style >

< script type = " text/javascript " >
function showEdit(r, c) {
document.forms[ 0 ].elements[ " txt " + r + " _ " + c].readOnly = false ;
document.forms[ 0 ].elements[ " txt " + r + " _ " + c].className = ' hasborder ' ;
document.forms[ 0 ].elements[ " txt " + r + " _ " + c].select();
}
function lostfocus(o) {
o.className = ' noborder '
o.readOnly = true ;
}
</ script >

</ head >
< body >
< form id = " form1 " runat = " server " >
< asp:GridView ID = " GridView1 " runat = " server " ShowHeader = " false " OnRowDataBound = " GridView1_RowDataBound " >
</ asp:GridView >
< asp:Button ID = " Button1 " runat = " server " OnClick = " Button1_Click " Text = " 加载表格 " />
< asp:Button ID = " Button2 " runat = " server " Text = " 保存数据 " OnClick = " Button2_Click " />
< asp:Label ID = " ret " runat = " server " ></ asp:Label >
</ form >
</ body >
</ html >