如何排序gridview数据

Question

请参阅下面的代码，我尝试通过调用微软vs 2008提供的函数对网格视图数据进行排序，但分页完成但排序过程不起作用，请告诉我应该在哪里我改变了下面的代码，是的，我把网格视图更新为刑罚，是否有更新刑罚的问题？

protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e) 
{ 
    GridView1.PageIndex = e.NewPageIndex; 
    showData(); 
} 
protected void GridView1_Sorting(object sender, GridViewSortEventArgs e) 
{ 
    try 
    { 
     SqlCommand cmd = new SqlCommand("showData", con); 
     cmd.CommandType = CommandType.StoredProcedure; 
     SqlDataAdapter da = new SqlDataAdapter(cmd); 
     DataSet ds = new DataSet(); 
     da.Fill(ds); 
     if (ds.Tables[0] != null) 
     { 

      ds.Tables[0].DefaultView.Sort = e.SortExpression + " " + sortType(e.SortDirection); 
      GridView1.DataSource = ds; 
      GridView1.DataBind(); 
     } 
    } 
    catch (Exception ex) 
    { 
     Label1.Text = ex.ToString(); 
    } 
} 


private string sortType(SortDirection sortDirection) 
{ 
    string newSortDirection = String.Empty; 

    switch (sortDirection) 
    { 
     case SortDirection.Ascending: 
      newSortDirection = "DESC"; 
      break; 

     case SortDirection.Descending: 
      newSortDirection = "ASC"; 
      break; 
    } 

    return newSortDirection; 
} 

Answer 1

可以保证AllowSorting = “true” 和OnSorting = “GridView1_Sorting”

另请参阅

http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.gridview.sorting.aspx

http://www.codeproject.com/Articles/26882/Gridview-Sorting-with-Up-and-Down-Icons-Paging

sorting and paging with gridview asp.net

http://www.c-sharpcorner.com/uploadfile/afenster/gridview-sorting/

希望这有助于

Answer 2

我认为你必须分配给数据视图的GridView的DataSource属性，而不是数据集对象。像这样

DataTable dt = ds.Tables[0]; 

DataView dv = new DataView(dt); 
dv.Sort = e.SortExpression + " " + sortType(e.SortDirection); 
GridView1.DataSource = dv; 
GridView1.DataBind(); 

Answer 3

您缺少newSortDirection的默认值。

private string sortType(SortDirection sortDirection) 
{ 
    string newSortDirection = "ASC"; 

    switch (sortDirection) 
    { 
     case SortDirection.Ascending: 
      newSortDirection = "DESC"; 
      break; 

     case SortDirection.Descending: 
      newSortDirection = "ASC"; 
      break; 
    } 

    return newSortDirection; 
}