Question

我有一个GridView，我正在尝试排序，并且排序有效，但是出于某种原因，第一次点击并没有开始排序。我需要在排序开始之前两次单击标题列中的排序字段。希望有人能够识别我的问题：

ASPX代码：

                                 <asp:GridView ID="GridView_PendingCounts" runat="server" AllowPaging="True" 
                                          AllowSorting="True" CellPadding="4" ForeColor="#333333" GridLines="None" 
                                          AutoGenerateColumns="False" ShowHeader="True" 
                                          style="margin-right: 0px" PageSize="50"
                                          OnSorting="GridView_PendingCounts_Sorting"
                                          OnPageIndexChanging="GridView_PendingCounts_PageIndexChanging" SortedAscendingHeaderStyle="true" 
                                          SortedDescendingHeaderStyle="true">

cs code：

点击处理程序：

protected void GridView_PendingCounts_Sorting(object sender, GridViewSortEventArgs e)
    {
        //Create/update cookie to sort data on sproc pull in GemericRules - spTeamComplianceGetCountsSearch
        //Cookie string is stored as : Cookie name: Table (TCSortGridViewPending = PendingCounts, TCSortGridViewApproved = ApprovedCounts, TCSortGridViewTotal = TotalCounts) 
        //Cookie value: Sort Expression (SQLDB Table column header), Sort Direction ("ASC"/"DESC")
        //note that e.SortDirection is not persisting with postback. To get around this i had to simply check for ASC in string, and if exists switch to DESC.
        var sortDirection = " ASC";

        if (!string.IsNullOrEmpty(Cookies_Get("TCSortGridViewPending")) && Cookies_Get("TCSortGridViewPending").IndexOf(" ASC", StringComparison.Ordinal) > 0)
        {
            sortDirection = " DESC";
        }

        //Kill previous cookie value
        Cookies_Delete("TCSortGridViewPending");

        Cookies_Set("TCSortGridViewPending", SortExpressionAdapter(e.SortExpression) + sortDirection, DateTime.Now.AddHours(24));
        //Cookie Debug alert:
        //ClientScript.RegisterStartupScript(this.GetType(), "myalert", "alert('" + "Sorting click:" + Cookies_Get("TCSortGridViewPending") + "');", true);
        GenericRules();
        //Per Joel, if we sort a column, we want to switch pagination back to origin. We do this by settting page index to 0
        GridView_PendingCounts.PageIndex = 0;
        GridView_PendingCounts.DataBind();
    }

最后，剪切通过dataview应用排序的通用规则，通过指向SPROC返回的数据集中的表来实例化：

//now that we have our data set populated, we need to issue sorting on tables tblTotal, tblApproved, and tblPending 
            //based upon the cookies set in the Sorting controls.
            //Cookie string is stored as : Cookie name: Table (TCSortGridViewPending = PendingCounts, TCSortGridViewApproved = ApprovedCounts, TCSortGridViewTotal = TotalCounts) 
            //Cookie value: Sort Expression (SQLDB Table column header), Sort Direction ("ASC"/"DESC")
            //First check if the cookie exists, and if so, apply sorting to the designated table.
            //Cookies: 
            //  TCSortGridViewTotal -       contains: SortExpression(SQLDB table column header),ASC/DESC
            //  TCSortGridViewApproved -    contains: SortExpression(SQLDB table column header),ASC/DESC
            //  TCSortGridViewPending -     contains: SortExpression(SQLDB table column header),ASC/DESC
            var vwTotal = new DataView();
            var vwApproved = new DataView();
            var vwPending = new DataView();

            //Here we create views for each table so we can apply sorting if the cookie exists to apply sorting rules.
            if (ds.Tables["tblTotal"] != null && ds.Tables["tblTotal"].Rows.Count > 0)
            {
                vwTotal = ds.Tables["tblTotal"].DefaultView;
            }
            if (ds.Tables["tblApproved"] != null && ds.Tables["tblApproved"].Rows.Count > 0)
            {
                vwApproved = ds.Tables["tblApproved"].DefaultView;
            }
            if (ds.Tables["tblPending"] != null && ds.Tables["tblPending"].Rows.Count > 0)
            {
                vwPending = ds.Tables["tblPending"].DefaultView;
            }

            if (!string.IsNullOrEmpty(Cookies_Get("TCSortGridViewTotal")))
            {
                //Debug cookie value:
                //ClientScript.RegisterStartupScript(this.GetType(), "myalert", "alert('" + Cookies_Get("TCSortGridViewTotal") + "');", true);
                vwTotal.Sort = Cookies_Get("TCSortGridViewTotal");
            }
            if (!string.IsNullOrEmpty(Cookies_Get("TCSortGridViewApproved")))
            {
                //Debug cookie value:
                //ClientScript.RegisterStartupScript(this.GetType(), "myalert", "alert('" + Cookies_Get("TCSortGridViewApproved") + "');", true);
                ds.Tables["tblApproved"].DefaultView.Sort = Cookies_Get("TCSortGridViewApproved");
            }
            if (!string.IsNullOrEmpty(Cookies_Get("TCSortGridViewPending")))
            {
                //Debug cookie value:
                //ClientScript.RegisterStartupScript(this.GetType(), "myalert", "alert('" + Cookies_Get("TCSortGridViewPending") + "');", true);
                ds.Tables["tblPending"].DefaultView.Sort = Cookies_Get("TCSortGridViewPending");
            }

排序工作正常，它只是不适用我的第一次点击。我甚至试图在设置后续排序点击事件之前删除cookie，但无济于事。知道为什么我的排序onclick事件似乎在回发/重绘之前没有被击中？

我还注意到，如果我点击刷新，排序就会开始...所以这证明了排序DOES的onclick应用了cookie，但由于某些原因它直到我执行额外的刷新才会呈现。

非常感谢帮助。我在这里没有想法。

GridView排序不会在第一次单击时排序

0 个答案: