GridView控件在不使用数据源控件时，实现排序和分页

有时你想在不使用数据源控件如SqlDataSource或ObjectDataSource控件的情况下绑定GridView控件到数据，这意味着排序和分页将不会借助数据源控件被自动处理，为了实现排序和分页，你必须要处理GridView控件的PageIndexChanging和 Sorting事件，如下例所示：

 

protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)

{

GridView1.DataSource = SortDataTable(GetYourDataSource(), true);

GridView1.PageIndex = e.NewPageIndex;

GridView1.DataBind();

}

private stringGridViewSortDirection

{

get { returnViewState["SortDirection"] as string ?? "ASC"; }

set { ViewState["SortDirection"] = value; }

}

private stringGridViewSortExpression

{

get { returnViewState["SortExpression"] as string ?? string.Empty; }

set { ViewState["SortExpression"] = value; }

}

private stringToggleSortDirection()

{

switch (GridViewSortDirection)

{

case"ASC":

GridViewSortDirection = "DESC";

break;

case"DESC":

GridViewSortDirection = "ASC";

break;

}

returnGridViewSortDirection;

}

protectedDataView SortDataTable(DataTable dataTable, boolisPageIndexChanging)

{

if (dataTable != null)

{

DataView dataView = newDataView(dataTable);

if (GridViewSortExpression != string.Empty)

{

if (isPageIndexChanging)

{

dataView.Sort = string.Format("{0} {1}",  GridViewSortExpression,GridViewSortDirection);

}

else

{

dataView.Sort = string.Format("{0} {1}",GridViewSortExpression,ToggleSortDirection());

}

}

returndataView;

}

else

{

return newDataView();

}

}

protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)

{

GridViewSortExpression = e.SortExpression;

intpageIndex = GridView1.PageIndex;

GridView1.DataSource = SortDataTable(GetYourDataSource(), false);

GridView1.PageIndex = pageIndex;

GridView1.DataBind();

}

转载于:https://www.cnblogs.com/aspx-net/archive/2010/08/30/1812357.html