求一断asp.net2005中GridView排序方法

[MARS_MJ]

rt
谢谢！

[zhuangyan2004]

UP

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http://valenhua.go3.icpcn.com/

[artak]

private string ConvertSortDirectionToSql(SortDirection sortDireciton)
{
string m_SortDirection = String.Empty;

switch (sortDirection)
{
case SortDirection.Ascending:
m_SortDirection = "ASC";
break;

case SortDirection.Descending:
m_SortDirection = "DESC";
break;
}

return m_SortDirection
}

protected void gridView_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
gridView.PageIndex = e.NewPageIndex;
gridView.DataBind();
}

protected void gridView_Sorting(object sender, GridViewSortEventArgs e)
{
DataTable m_DataTable = gridView.DataSource as DataTable;

if (m_DataTable != null)
{
DataView m_DataView = new DataView(m_DataTable);
m_DataView.Sort = e.SortExpression + " " + ConvertSortDirectionToSql(e.SortDirection);

gridView.DataSource = m_DataView;
gridView.DataBind();
}
}

[CH_MARS]

在GridView的gvProjectView_Sorting事件中添加
protected void gvProjectView_Sorting(object sender, GridViewSortEventArgs e)
{
string SortExpression = e.SortExpression.ToString();

string SortDirection = "ASC";

if (SortExpression == this.gvProjectView.Attributes["SortExpression"])
{
SortDirection = (this.gvProjectView.Attributes["SortDirection"].ToString() == SortDirection ? "DESC" : "ASC");
}

this.gvProjectView.Attributes["SortExpression"] = SortExpression;

this.gvProjectView.Attributes["SortDirection"] = SortDirection;

this.InitForm();//databind GridView
}
RowCreated 用来对某一字段排序后变换排序图片
protected void gvProjectView_RowCreated(object sender, GridViewRowEventArgs e)
{
if(e.Row != null && e.Row.RowType == DataControlRowType.Header)
{
foreach (TableCell cell in e.Row.Cells)
{
if (cell.HasControls())
{
LinkButton button = cell.Controls[0] as LinkButton;
if (button != null)
{
Image image = new Image();
image.ImageUrl = "images/i_pulldown.gif";
if (gvProjectView.Attributes["SortExpression"].ToString() == button.CommandArgument)
{
if (gvProjectView.Attributes["SortDirection"].ToString() == "ASC")
image.ImageUrl = "images/i_pulldown.gif";
else
image.ImageUrl = "images/tonext.gif";
}
cell.Controls.Add(image);
}
}
}
}

}

页面初始化的时候加
//sort gvProjectView
if (this.gvProjectView.Attributes["SortExpression"] == null)
{
this.gvProjectView.Attributes["SortExpression"] = "PROJECT_CD";
this.gvProjectView.Attributes["SortDirection"] = "ASC";
}

[ldw701]

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