Question

我开发了一个具有Gridview控件的asp.net应用程序。当我点击asp.net中的Gridview头文本时，我想要它进行排序。实体框架用于绑定gridview。

protected void grdmortgagesaver_Sorting(object sender, GridViewSortEventArgs e)
{
    string sortExpression = e.SortExpression;

    if (GridViewSortDirection == SortDirection.Ascending)
    {
        GridViewSortDirection = SortDirection.Descending;
        SortGridView(sortExpression, DESCENDING);
    }
    else
    {
        GridViewSortDirection = SortDirection.Ascending;
        SortGridView(sortExpression, ASCENDING);
    }   

}

private void SortGridView(string sortExpression, string direction)
{

 //  You can cache the DataTable for improving performance
     var databind = from i in mortgageentites.Clients orderby i.LastName select i;
    if (databind.Count() > 0)
    {    
        grdmortgagesaver.DataSource = databind.ToList();
        grdmortgagesaver.DataBind();
        DataTable dt = clients;
        if (dt != null)
        {
            // DataTable dt = ds.Tables[0];
            DataView dv = new DataView(dt);
            dv.Sort = sortExpression + direction;
            grdmortgagesaver.DataSource = dv;
            grdmortgagesaver.DataBind();
        }
    }
}

Answer 1

如果您使用的是标准ASP.NET System.Web.UI.WebControls.GridView，则可以在属性窗格中通过将“AllowSorting”设置为true或通过“弹出”来简单地“启用排序”通过选中“启用排序”

来控制右上角

Answer 2

在gridview控件中添加AllowSorting =“true”并

protected void grd_Sorting(object sender, GridViewSortEventArgs e)
    {
        if (e.SortExpression == hdfSortExp.Value)
        {
            if (hdfUpDown.Value == "1")
                hdfUpDown.Value = "0";
            else
                hdfUpDown.Value = "1";
        }
        else //New Column clicked so the default sort direction will be incorporated
            hdfUpDown.Value = "0";

        hdfSortExp.Value = e.SortExpression; //Update the sort column
        BindGrid(hdfSortExp.Value, this.CBool(hdfUpDown.Value));
    }

在您的c＃代码中

public void BindGrid(string sortBy, bool inAsc)
    {
        grd.DataSource = WManager.GetAdminTags(txtSearch.Text.Trim(), sortBy, inAsc);
        grd.DataBind();
    }

Answer 3

首先在GridView声明标签的页面中添加属性AllowSorting="true"，然后在Gridview_SortCommand中尝试以下代码作为指导

try {
    if (SortType == false) {
        SortView.Sort = e.SortExpression + " ASC";
        //dviewGeneral.Sort = e.SortExpression & " ASC"
        Session.Item("SortOrder") = SortView.Sort.ToString;
        SortType = true;
    } else {
        SortView.Sort = e.SortExpression + " DESC";
        Session.Item("SortOrder") = SortView.Sort.ToString;
        //dviewGeneral.Sort = e.SortExpression & " DESC"
        SortType = false;
    }
    CMSgrid.SelectedIndex = -1;
    CMSgrid.CurrentPageIndex = 0;
    SortBind();
} catch (Exception ex) {
    UserMsgBox(ex.ToString());
}

当我点击asp.net中gridview上的标题文本时，如何排序gridview

3 个答案: