Question

我的ASP.Net应用程序中有一个RadGrid，我将AllowPaging设置为True，PageSize设置为10，现在每个RadGridPage加载10个项目，这就是我想要的，但是只要按下Next Page按钮（Arrow）看起来按钮）没有任何加载和RadGrid变空。我怎样才能让它正常工作？

protected void Page_Load(object sender, EventArgs e)
    {
        PopulateGridOnLoad();
    }
private void PopulateGridOnLoad()
    {
        rgCustomers.DataSource = odsCustomers;
        // your datasource type
        rgCustomers.MasterTableView.VirtualItemCount = 28;
        //your datasource type total/count
        rgCustomers.CurrentPageIndex = rgCustomers.MasterTableView.CurrentPageIndex;
        rgCustomers.Rebind();

    }

protected void grdName_NeedDataSource(object sender, Telerik.Web.UI.GridNeedDataSourceEventArgs e)
    {

        rgCustomers.DataSource = odsCustomers;
        // your datasource type
        rgCustomers.MasterTableView.VirtualItemCount = 28;
        //your datasource type total/count
        rgCustomers.CurrentPageIndex = rgCustomers.MasterTableView.CurrentPageIndex;
        //Donot rebind here
    }

    protected void btnLoad_Click(object sender, EventArgs e)
    {
        odsCustomers.SelectParameters["CustomerFullName"].DefaultValue = txtFullName.Text;
        odsCustomers.SelectParameters["CustomerMelliCode"].DefaultValue = txtMelliCode.Text;
        odsCustomers.SelectParameters["CustomerHomeAddress"].DefaultValue = txtHomeAddressPart.Text;
        odsCustomers.SelectParameters["CustomerWorkAddress"].DefaultValue = txtWorkAddressPart.Text;
        rgCustomers.DataSource = odsCustomers;
        rgCustomers.DataBind();

    }

Answer 1

您必须在设计中设置以下网格属性

 <telerik:RadGrid ID="grdName" 
             AllowPaging="True" 
             AllowCustomPaging="True"
             VirtualItemCount="0" PageSize="15" >

在load vb.net上填充网格

Private Sub PopulateGridOnLoad()

    grdName.DataSource = source ' your datasource type
    grdName.MasterTableView.VirtualItemCount = source.Total 'your datasource type total/count
    grdName.CurrentPageIndex = grdName.MasterTableView.CurrentPageIndex
    grdName.Rebind()

End Sub

在加载c＃.net

上填充网格

private void PopulateGridOnLoad()
{
    grdName.DataSource = source;
    // your datasource type
    grdName.MasterTableView.VirtualItemCount = source.Total;
    //your datasource type total/count
    grdName.CurrentPageIndex = grdName.MasterTableView.CurrentPageIndex;
    grdName.Rebind();

}

覆盖NeedDatasource vb.net

 Protected Sub grdName_NeedDataSource(sender As Object, e As Telerik.Web.UI.GridNeedDataSourceEventArgs) Handles grdName.NeedDataSource

         grdName.DataSource = source ' your datasource type
         grdName.MasterTableView.VirtualItemCount = source.Total 'your datasource type total/count
         grdName.CurrentPageIndex = grdName.MasterTableView.CurrentPageIndex
        'Donot rebind here
    End Sub

覆盖NeedDatasource c＃

protected void grdName_NeedDataSource(object sender, Telerik.Web.UI.GridNeedDataSourceEventArgs e)
{

    grdName.DataSource = source;
    // your datasource type
    grdName.MasterTableView.VirtualItemCount = source.Total;
    //your datasource type total/count
    grdName.CurrentPageIndex = grdName.MasterTableView.CurrentPageIndex;
    //Donot rebind here
}

Answer 2

经过很长一段时间我找到了解决方案，问题涉及两个小问题：
1.我同时设置了DataSource（代码中）和DataSourceID（属性），但它们并没有很好地协同工作 2.我将AllowPaging和AllowCustomPaging都设置为true，当它们都是真的时都不起作用:)这是你知道的telerik团队，但他们很棒我开玩笑

Answer 3

您需要定义“onNeedDataSource”radgrid事件，您可以在其中重置网格的数据源。

  protected void RadGrid_NeedDataSource(object sender, EventArgs e)
      {
          IsNeedDataSource = true;
      }

而不是在页面OnPreRender事件中你应该像：

  protected override void OnPreRender(object sender, EventArgs e)
      {
           DriverLinksGrid.DataSource = value;
           DriverLinksGrid.DataBind();
      }

我不是很害羞，也许你可以在OnNeedDataSource事件中绑定数据。但DataBind()方法可能无法从那里获得。

更改页面后，RadGrid分页无法正常工作

3 个答案: