SqlDataSourceView.Updated Händelse

Definition

Namnområde:
System.Web.UI.WebControls
Sammansättning:
System.Web.dll

Inträffar när en uppdateringsåtgärd har slutförts.

public:
 event System::Web::UI::WebControls::SqlDataSourceStatusEventHandler ^ Updated;
public event System.Web.UI.WebControls.SqlDataSourceStatusEventHandler Updated;
member this.Updated : System.Web.UI.WebControls.SqlDataSourceStatusEventHandler 
Public Custom Event Updated As SqlDataSourceStatusEventHandler

Händelsetyp

SqlDataSourceStatusEventHandler

Exempel

Följande kodexempel visar hur du visar och uppdaterar data som hämtas från en ODBC-databas i en GridView kontroll. När en post har uppdaterats Updated hanteras händelsen av en händelsehanterare för att utföra ett steg efter bearbetningen där ett e-postmeddelande skickas.

<%@Page  Language="C#" %>
<%@Import Namespace="System.Web.Mail" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

 private void OnDSUpdatedHandler(Object source, SqlDataSourceStatusEventArgs e) {
    if (e.AffectedRows > 0) {
        // Perform any additional processing, such as sending an email notification.
        Label1.Text = Request.LogonUserIdentity.Name +
            " changed user information successfully!";
    }
    else {
        Label1.Text = "No data updated!";
    }
 }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
    <!-- This example uses a Northwind database that is hosted by an ODBC-compliant
         database. To run this sample, create an ODBC DSN to any database that hosts
         the Northwind database, including Microsoft SQL Server or Microsoft Access,
         change the name of the DSN in the ConnectionString, and view the page.
    -->
    <form id="form1" runat="server">

      <asp:SqlDataSource
          id="SqlDataSource1"
          runat="server"
          ProviderName="System.Data.Odbc"
          DataSourceMode="DataSet"
          ConnectionString="dsn=myodbc3dsn;"
          SelectCommand="SELECT EmployeeID,FirstName,LastName,Title FROM Employees"
          UpdateCommand="Update Employees SET FirstName=?,LastName=?,Title=? WHERE EmployeeID=?"
          OnUpdated="OnDSUpdatedHandler">
      </asp:SqlDataSource>

      <asp:GridView
          id="GridView1"
          runat="server"
          AutoGenerateColumns="False"
          DataKeyNames="EmployeeID"
          AutoGenerateEditButton="True"
          DataSourceID="SqlDataSource1">
          <columns>
              <asp:BoundField HeaderText="First Name" DataField="FirstName" />
              <asp:BoundField HeaderText="Last Name" DataField="LastName" />
              <asp:BoundField HeaderText="Title" DataField="Title" />
          </columns>
      </asp:GridView>

      <asp:Label
          id="Label1"
          runat="server">
      </asp:Label>

    </form>
  </body>
</html>

<%@Page  Language="VB" %>
<%@Import Namespace="System.Web.Mail" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

 Sub OnDSUpdatedHandler(ByVal source As Object, ByVal e As SqlDataSourceStatusEventArgs)
    If e.AffectedRows > 0 Then
        ' Perform any additional processing, such as setting a status label.
        Label1.Text = Request.LogonUserIdentity.Name & _
            " changed user information successfully!"
    Else
        Label1.Text = "No data updated!"
    End If
 End Sub 'OnDSUpdatedHandler

</script>


<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
    <!-- This example uses a Northwind database that is hosted by an ODBC-compliant
         database. To run this sample, create an ODBC DSN to any database that hosts
         the Northwind database, including Microsoft SQL Server or Microsoft Access,
         change the name of the DSN in the ConnectionString, and view the page.
    -->
    <form id="form1" runat="server">

      <asp:SqlDataSource
          id="SqlDataSource1"
          runat="server"
          ProviderName="System.Data.Odbc"
          DataSourceMode="DataSet"
          ConnectionString="dsn=myodbc3dsn;"
          SelectCommand="SELECT EmployeeID,FirstName,LastName,Title FROM Employees"
          UpdateCommand="Update Employees SET FirstName=?,LastName=?,Title=? WHERE EmployeeID=?"
          OnUpdated="OnDSUpdatedHandler">
      </asp:SqlDataSource>

      <asp:GridView
          id="GridView1"
          runat="server"
          AutoGenerateColumns="False"
          DataKeyNames="EmployeeID"
          AutoGenerateEditButton="True"
          DataSourceID="SqlDataSource1">
          <columns>
              <asp:BoundField HeaderText="First Name" DataField="FirstName" />
              <asp:BoundField HeaderText="Last Name" DataField="LastName" />
              <asp:BoundField HeaderText="Title" DataField="Title" />
          </columns>
      </asp:GridView>

      <asp:Label
          id="Label1"
          runat="server">
      </asp:Label>

    </form>
  </body>
</html>

Kommentarer

Updated Hantera händelsen för att undersöka värdena för utdataparametrar när en uppdateringsåtgärd har slutförts. Utdataparametrarna är tillgängliga från objektet SqlDataSourceStatusEventArgs som är associerat med händelsen.

Mer information om hur du hanterar händelser finns i Hantera och höja händelser.

Gäller för

Se även