如何在数据表自动生成的 telerik gridview 中显示未找到记录消息？

Question

我正在使用 dataset 动态创建 GridView 但是当我的 GridView 中没有记录时出现问题所以在这种情况下我想显示我的 GridView所有带有 No Records Found.

的列

这是我的代码，但 GridView 不可见：

 var table = new DataTable();
 table .Columns.Add("Source");
 table .Columns.Add("Destination");
 table .Columns.Add("Date");

If()
{
  //All my logics where i am generating value for this "Source,Destination,Date" Column.
  foreach (var item in data)
  {
     table.Rows.Add(Source,Destination,Date);
  }
  //Binding to Gridview
 GridView1.DataSource = dt;
 GridView1.DataBind();
}
else
{
   //No Records so display gridview with "No records" along with columns.
      GridView1.DataSource = dt; //Here i will not be having any data for this 3 columns Source,Destination,Date
      GridView1.DataBind();//But My gridview is not visible
}

Aspx:

<telerik:RadGrid ID="GridView1" runat="server">
                            <MasterTableView AutoGenerateColumns="true" NoMasterRecordsText="No Records Found">
                                <Columns>
                                </Columns>
                            </MasterTableView>
                        </telerik:RadGrid>

预期输出：

Answer 1

对于 gridview，您需要将 NoMasterRecordsText 属性更改为 MasterTableView。

ASPX:

<MasterTableView NoMasterRecordsText="No Records Found" >

或

C#:

protected void Page_Load(object sender, EventArgs e)
{
   GridView1.MasterTableView.NoMasterRecordsText = "No Records Found";     
}

编辑：使用 OnNeedDataSource

将数据绑定到 GridView

<telerik:RadGrid ID="GridView1" runat="server" OnNeedDataSource="GridView1_NeedDataSource">
    <MasterTableView AutoGenerateColumns="true" NoMasterRecordsText="No Records Found">
           <Columns>
           </Columns>
    </MasterTableView>
</telerik:RadGrid>

在你后面的代码中

// GridView1_NeedDataSource
protected void GridView1_NeedDataSource(object source, Telerik.Web.UI.GridNeedDataSourceEventArgs e)
{
    BindGridViewData();
}

//Bind Grid View 
private void BindGridViewData()
{
 var table = new DataTable();
         table .Columns.Add("Source");
         table .Columns.Add("Destination");
         table .Columns.Add("Date");

       if()
       {

         foreach (var item in data)
         {
            table.Rows.Add(Source,Destination,Date);
         }
         //Binding to Gridview
         GridView1.DataSource = dt;

      }
      else
      {

          GridView1.DataSource = dt; 

      }
}

Answer 2

Gridview ASPX 页面放置 EmptyDataText

<asp:GridView ID="GvZone" runat="server" AutoGenerateColumns="False" 
    EmptyDataText="No Records Found !"  >
 </asp:GridView>

如何在数据表自动生成的 telerik gridview 中显示未找到记录消息？

How to display no records found message in auto generated telerik gridview from datatable?

c#

asp.net

gridview

datatable

telerik-grid