CSharp Deletion Using Sqldatasource Control – ADO.Net Database

<%@ Page Language="C#" %>
<script runat="server">
    void deptSource_Deleted(object sender,SqlDataSourceStatusEventArgs e)
    {
      if (e.Exception == null)
      {
        if (e.AffectedRows == 1)
        {
          lblResult.Text = "Record deleted successfully.";
        }
        else
        {
          lblResult.Text = "An error occurred during the delete operation.";
        }
      }
      else
      {
        lblResult.Text = "An error occurred while attempting to delete the row." + e.Exception.Message;
        e.ExceptionHandled = true;
      }
    }
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Deletion using SqlDataSource Control</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:SqlDataSource ID="deptSource" runat="server"
            ProviderName="System.Data.SqlClient"
            ConnectionString="<%$ ConnectionStrings:AdventureWorks %>"
            SelectCommand="Select DepartmentID, Name, GroupName, ModifiedDate from HumanResources.Department"
            DeleteCommand="Delete from HumanResources.Department Where DepartmentID=@original_DepartmentID"
            OldValuesParameterFormatString="original_{0}" OnDeleted="deptSource_Deleted">
            <deleteParameters>
                <asp:Parameter Type="Int32" Name="DepartmentID"></asp:Parameter>
            </deleteParameters>
        </asp:SqlDataSource>
        <asp:GridView ID="deptView"
            AutoGenerateColumns="False"
            runat="server"
            DataSourceID="deptSource"
            HeaderStyle-HorizontalAlign="Center"
            HeaderStyle-Font-Bold="True"
            HeaderStyle-BackColor="blue"
            HeaderStyle-ForeColor="White"
            DataKeyNames="DepartmentID">
            <columns>
                <asp:TemplateField HeaderText="Delete">
                    <itemTemplate>
                        <asp:Button ID="btnDelete" Text="Delete" runat="server"
                            OnClientClick="return confirm('Are you sure you want to delete this record?');"
                            CommandName="Delete" />
                    </itemTemplate>
                </asp:TemplateField>
                <asp:BoundField HeaderText="DepartmentID" DataField="DepartmentID" />
                <asp:BoundField HeaderText="Department Name" DataField="Name" />
                <asp:BoundField HeaderText="Group Name" DataField="GroupName" />
                <asp:BoundField HeaderText="Last Modified Date" DataField="ModifiedDate" />
            </columns>
        </asp:GridView>
        <asp:Label ID="lblResult" runat="server" ForeColor="DarkRed"/>
    </div>
    </form>
</body>
</html>

Enjoyed this post? Share it!

 

Leave a comment

Your email address will not be published.