Bewerken

Share via

FormView.EmptyDataText Property

  • Reference

Definition

Namespace:
System.Web.UI.WebControls
Assembly:
System.Web.dll

Gets or sets the text to display in the empty data row rendered when a FormView control is bound to a data source that does not contain any records.

public:
 virtual property System::String ^ EmptyDataText { System::String ^ get(); void set(System::String ^ value); };
public virtual string EmptyDataText { get; set; }
member this.EmptyDataText : string with get, set
Public Overridable Property EmptyDataText As String

Property Value

String

The text to display in the empty data row. The default is an empty string (""), which indicates that this property is not set.

Examples

The following example demonstrates how to use the EmptyDataText property to specify the text to display in the empty data row.


<%@ Page language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>FormView EmptyDataText Example</title>
</head>
<body>
    <form id="form1" runat="server">
        
      <h3>FormView EmptyDataText Example</h3>
                       
      <asp:formview id="EmployeeFormView"
        datasourceid="EmployeeSource"
        allowpaging="true"
        datakeynames="EmployeeID"
        emptydatatext="No records available." 
        runat="server">
        
        <EmptyDataRowStyle BackColor="Red"
          forecolor="White"
          font-size="14"
          font-italic="true" 
          height="100"/> 
        
        <itemtemplate>
        
          <table>
            <tr>
              <td>
                <asp:image id="EmployeeImage"
                  imageurl='<%# Eval("PhotoPath") %>'
                  alternatetext='<%# Eval("LastName") %>' 
                  runat="server"/>
              </td>
              <td>
                <h3><%# Eval("FirstName") %> <%# Eval("LastName") %></h3>      
                <%# Eval("Title") %>        
              </td>
            </tr>
          </table>
        
        </itemtemplate>
          
        <pagersettings position="Bottom"
          mode="NextPrevious"/> 
                  
      </asp:formview>
          
      <!-- This example uses Microsoft SQL Server and connects  -->
      <!-- to the Northwind sample database. Use an ASP.NET     -->
      <!-- expression to retrieve the connection string value   -->
      <!-- from the Web.config file.                            -->
      
      <!-- The select query for the following SqlDataSource     -->
      <!-- control is intentionally set to return no results    -->
      <!-- to demonstrate the empty data row.                   -->  
      <asp:sqldatasource id="EmployeeSource"
        selectcommand="Select [EmployeeID], [LastName], [FirstName], [Title], [PhotoPath] From [Employees] Where [EmployeeID]=1000"
        connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>" 
        runat="server"/>
            
    </form>
  </body>
</html>


<%@ Page language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>FormView EmptyDataText Example</title>
</head>
<body>
    <form id="form1" runat="server">
        
      <h3>FormView EmptyDataText Example</h3>
                       
      <asp:formview id="EmployeeFormView"
        datasourceid="EmployeeSource"
        allowpaging="true"
        datakeynames="EmployeeID"
        emptydatatext="No records available." 
        runat="server">
        
        <EmptyDataRowStyle BackColor="Red"
          forecolor="White"
          font-size="14"
          font-italic="true" 
          height="100"/> 
        
        <itemtemplate>
        
          <table>
            <tr>
              <td>
                <asp:image id="EmployeeImage"
                  imageurl='<%# Eval("PhotoPath") %>'
                  alternatetext='<%# Eval("LastName") %>' 
                  runat="server"/>
              </td>
              <td>
                <h3><%# Eval("FirstName") %> <%# Eval("LastName") %></h3>      
                <%# Eval("Title") %>        
              </td>
            </tr>
          </table>
        
        </itemtemplate>
          
        <pagersettings position="Bottom"
          mode="NextPrevious"/> 
                  
      </asp:formview>
          
      <!-- This example uses Microsoft SQL Server and connects  -->
      <!-- to the Northwind sample database. Use an ASP.NET     -->
      <!-- expression to retrieve the connection string value   -->
      <!-- from the Web.config file.                            -->
      
      <!-- The select query for the following SqlDataSource     -->
      <!-- control is intentionally set to return no results    -->
      <!-- to demonstrate the empty data row.                   -->  
      <asp:sqldatasource id="EmployeeSource"
        selectcommand="Select [EmployeeID], [LastName], [FirstName], [Title], [PhotoPath] From [Employees] Where [EmployeeID]=1000"
        connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>" 
        runat="server"/>
            
    </form>
  </body>
</html>

Remarks

The empty data row is displayed in a FormView control when the data source that is bound to the control does not contain any records. Use the EmptyDataText property to specify the text to display in the empty data row. To control the style of the empty data row, use the EmptyDataRowStyle property. Alternatively, you can define your own custom user interface (UI) for the empty data row by setting the EmptyDataTemplate property instead of this property.

Note

If both the EmptyDataText and EmptyDataTemplate properties are set, the EmptyDataTemplate property takes precedence.

The value of this property, when set, can be saved automatically to a resource file by using a designer tool. For more information, see LocalizableAttribute and Globalization and Localization.

Applies to

See also