/// <summary>
/// 對GridView抬頭增加排序的圖案(DataTable)
/// </summary>
/// <param name="e"></param>
/// <param name="lsSortExpression"></param>
/// <param name="lsSortDirection"></param>
public void AddSortIcon(GridViewRowEventArgs e, string lsSortExpression, string lsSortDirection)
{
foreach (TableCell MyHeader in e.Row.Cells) //對每一格
{
if (MyHeader.HasControls())
{
if (MyHeader.Controls[0] is LinkButton) //避免GridView中的CheckBox全選的錯誤
{
if (((LinkButton)MyHeader.Controls[0]).CommandArgument == lsSortExpression) //是否為為排序欄位
{
if (lsSortDirection.ToUpper() == "ASC") //依排序方向加入箭號
{
MyHeader.Controls.Add(new LiteralControl("▽")); //可以換圖片"<img src='../images/btnDown.png' border='0'>"
}
else
{
MyHeader.Controls.Add(new LiteralControl("△"));
}
}
else
{
//MyHeader.Controls.Add(new LiteralControl(""));
}
}
}
}
}
protected void Grid_Material_RowCreated(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.Header) //如果是表头
{
foreach (TableCell MyHeader in e.Row.Cells) //对每一单元格
{
if (MyHeader.HasControls())
{
if (((LinkButton)MyHeader.Controls[0]).CommandArgument == Grid_Material.SortExpression)
{
//是否为排序列
if (Grid_Material.SortDirection == SortDirection.Ascending) //依排序方向加入方向箭头
{
MyHeader.Controls.Add(new LiteralControl("▲"));
}
else
{
MyHeader.Controls.Add(new LiteralControl("▼"));
}
}
}
}
}
}
