在gridview和datagrid里设置列宽

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无论是gridview还是datagrid,在绑定数据后，列宽都不是固定的，在设计时是没法设定的，只能通过绑定是触发的事件来重新设定。参考http://msdn2.microsoft.com/zh-cn/library/ms178296(VS.80).aspx 的解释。

gridview的代码：

protectedintwidestData;
protectedvoidGridView1_RowDataBound(objectsender,
GridViewRowEventArgse)
{
System.Data.DataRowViewdrv;
drv=(System.Data.DataRowView)e.Row.DataItem;
if(e.Row.RowType==DataControlRowType.DataRow)
{
if(drv!=null)
{
StringcatName=drv[1].ToString();
Response.Write(catName+?¡ã/?¡À);
intcatNameLen=catName.Length;
if(catNameLen>widestData)
{
widestData=catNameLen;
GridView1.Columns[2].ItemStyle.Width=
widestData*30;
GridView1.Columns[2].ItemStyle.Wrap=false;
}
}
}
}
protectedvoidPage_Load(objectsender,EventArgse)
{
widestData=0;
}

datagrid 的代码：

protectedvoiddatagrid_ItemCreated(objectsender,DataGridItemEventArgse)
{
ListItemTypeitemType=e.Item.ItemType;
if(itemType==ListItemType.Header)
{
for(inti=0;i<e.Item.Cells.Count;i++)
{
e.Item.Cells[i].Width=Unit.Pixel(80);
e.Item.Cells[i].Wrap=false;
}
}
}