CSharp Using Rowdeleted Event To Catch Sql Errors (Vb) – ADO.Net Database

<%@ Page Language="VB" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server">
    Protected Sub GridView1_RowDeleted(ByVal sender As Object, ByVal e As GridViewDeletedEventArgs)
 
        If (Not IsDBNull(e.Exception)) Then
            Me.lblErrorMessage.Text = e.Exception.Message
            e.ExceptionHandled = True
        End If
    End Sub    Protected Sub SqlDataSource1_Deleted(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceStatusEventArgs)
        If (e.Exception IsNot Nothing) Then
            Me.lblErrorMessage.Text = e.Exception.Message
            e.ExceptionHandled = True
        End If
    End Sub
</script> <html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <asp:GridView ID="GridView1"
                  Runat="server"
                  DataSourceID="SqlDataSource1"
                  DataKeyNames="CustomerID"
                  AutoGenerateColumns="False"
                  AllowSorting="True"
                  AllowPaging="True"
                  AutoGenerateEditButton="true"
                  AutoGenerateDeleteButton="true"
                  OnRowDeleted="GridView1_RowDeleted">
         <pagerStyle HorizontalAlign="Center"></pagerStyle>
         <pagerSettings Position="TopAndBottom"
                        FirstPageText="Go to the first page"
                        LastPageText="Go to the last page"
                        Mode="NextPreviousFirstLast">
         </pagerSettings>
            <columns>
                <asp:BoundField ReadOnly="True"
                                HeaderText="CustomerID"
                                DataField="CustomerID"
                                SortExpression="CustomerID"
                                Visible="False"></asp:BoundField>
                <asp:HyperLinkField HeaderText="CompanyName"
                    DataNavigateUrlFields="CustomerID,Country" SortExpression="CompanyName"
                    DataNavigateUrlFormatString=
                        "http://www.yourServer.com/Customer.aspx?id={0}&country={1}"
                    DataTextField="CompanyName">
                </asp:HyperLinkField>                <asp:BoundField HeaderText="ContactName" DataField="ContactName"
                     SortExpression="ContactName"></asp:BoundField>
                <asp:BoundField HeaderText="ContactTitle" DataField="ContactTitle"
                     SortExpression="ContactTitle"></asp:BoundField>
                <asp:BoundField HeaderText="Address" DataField="Address"
                     SortExpression="Address"></asp:BoundField>
                <asp:BoundField HeaderText="City" DataField="City"
                     SortExpression="City"></asp:BoundField>
                <asp:BoundField HeaderText="Region" NullDisplayText="N/A"
                     DataField="Region" SortExpression="Region"></asp:BoundField>
                <asp:BoundField HeaderText="PostalCode" DataField="PostalCode"
                     SortExpression="PostalCode"></asp:BoundField>
                <asp:BoundField HeaderText="Country" DataField="Country"
                     SortExpression="Country"></asp:BoundField>
                <asp:BoundField HeaderText="Phone" DataField="Phone"
                     SortExpression="Phone"></asp:BoundField>
                <asp:BoundField HeaderText="Fax" DataField="Fax"
                     SortExpression="Fax"></asp:BoundField>
 
            </columns>
        </asp:GridView>        <asp:SqlDataSource ID="SqlDataSource1" Runat="server"
             SelectCommand="SELECT * FROM [Customers]"
             ConnectionString="<%$ ConnectionStrings:AppConnectionString1 %>"
             DataSourceMode="DataSet"
             DeleteCommand="DELETE From Customers WHERE (CustomerID = @CustomerID)"
             UpdateCommand="UPDATE [Customers] SET [CompanyName] = @CompanyName,
                  [ContactName] = @ContactName, [ContactTitle] = @ContactTitle,
                  [Address] = @Address, [City] = @City, [Region] = @Region,
                  [PostalCode] = @PostalCode, [Country] = @Country, [Phone] = @Phone,
                  [Fax] = @Fax WHERE [CustomerID] = @original_CustomerID" OnDeleted="SqlDataSource1_Deleted">
             <updateParameters>
                 <asp:Parameter Type="String" Name="CompanyName"></asp:Parameter>
                 <asp:Parameter Type="String" Name="ContactName"></asp:Parameter>
                 <asp:Parameter Type="String" Name="ContactTitle"></asp:Parameter>
                 <asp:Parameter Type="String" Name="Address"></asp:Parameter>
                 <asp:Parameter Type="String" Name="City"></asp:Parameter>
                 <asp:Parameter Type="String" Name="Region"></asp:Parameter>
                 <asp:Parameter Type="String" Name="PostalCode"></asp:Parameter>
                 <asp:Parameter Type="String" Name="Country"></asp:Parameter>
                 <asp:Parameter Type="String" Name="Phone"></asp:Parameter>
                 <asp:Parameter Type="String" Name="Fax"></asp:Parameter>
                 <asp:Parameter Type="String" Name="CustomerID"></asp:Parameter>
             </updateParameters>
        </asp:SqlDataSource>
        <asp:Label ID="lblErrorMessage" runat="server" Text="Label"></asp:Label>
    </div>
    </form>
</body>
</html>File: Web.config<configuration>
  <appSettings/>
  <connectionStrings>
        <add name="AppConnectionString1"
             connectionString="Data Source=localhost\SQLEXPRESS;Initial Catalog=Northwind;Integrated Security=True"
             providerName="System.Data.SqlClient" />
    </connectionStrings>
  <system.web>
    <compilation debug="true" strict="false" explicit="true">
      <codeSubDirectories>
        <add directoryName="VB"></add>
        <add directoryName="CS"></add>
      </codeSubDirectories>
    </compilation>
    <pages>
      <namespaces>
        <clear/>
        <add namespace="System"/>
        <add namespace="System.Collections"/>
        <add namespace="System.Collections.Specialized"/>
        <add namespace="System.Configuration"/>
        <add namespace="System.Text"/>
        <add namespace="System.Text.RegularExpressions"/>
        <add namespace="System.Web"/>
        <add namespace="System.Web.Caching"/>
        <add namespace="System.Web.SessionState"/>
        <add namespace="System.Web.Security"/>
        <add namespace="System.Web.Profile"/>
        <add namespace="System.Web.UI"/>
        <add namespace="System.Web.UI.WebControls"/>
        <add namespace="System.Web.UI.WebControls.WebParts"/>
        <add namespace="System.Web.UI.HtmlControls"/>
      </namespaces>
    </pages>
    <authentication mode="Windows"></authentication>
    <identity impersonate="true"/>
  </system.web>
</configuration>

Enjoyed this post? Share it!

 

Leave a comment

Your email address will not be published.