التعديل من خلال القريد فيو

DataKeyNames="CategoryID" DataSourceID="SqlDataSource2" DefaultMode="Edit"
ForeColor="#333333">
<EditItemTemplate>
CategoryID:
<asp:Label ID="CategoryIDLabel1" runat="server"
Text='<%# Eval("CategoryID") %>' />
<br />
CategoryName:
<asp:TextBox ID="CategoryNameTextBox" runat="server"
Text='<%# Bind("CategoryName") %>' />
<br />
Description:
<asp:TextBox ID="DescriptionTextBox" runat="server"
Text='<%# Bind("Description") %>' />
<br />
<asp:LinkButton ID="UpdateButton" runat="server" CausesValidation="True"
CommandName="Update" Text="Update" />
 <asp:LinkButton ID="UpdateCancelButton" runat="server"
CausesValidation="False" CommandName="Cancel" Text="Cancel" />
</EditItemTemplate>
<EditRowStyle BackColor="#999999" />
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<InsertItemTemplate>
CategoryName:
<asp:TextBox ID="CategoryNameTextBox" runat="server"
Text='<%# Bind("CategoryName") %>' />
<br />
Description:
<asp:TextBox ID="DescriptionTextBox" runat="server"
Text='<%# Bind("Description") %>' />
<br />
<asp:LinkButton ID="InsertButton" runat="server" CausesValidation="True"
CommandName="Insert" Text="Insert" />
 <asp:LinkButton ID="InsertCancelButton" runat="server"
CausesValidation="False" CommandName="Cancel" Text="Cancel" />
</InsertItemTemplate>
<ItemTemplate>
CategoryID:
<asp:Label ID="CategoryIDLabel" runat="server"
Text='<%# Eval("CategoryID") %>' />
<br />
CategoryName:
<asp:Label ID="CategoryNameLabel" runat="server"
Text='<%# Bind("CategoryName") %>' />
<br />
Description:
<asp:Label ID="DescriptionLabel" runat="server"
Text='<%# Bind("Description") %>' />
<br />
<asp:LinkButton ID="EditButton" runat="server" CausesValidation="False"
CommandName="Edit" Text="Edit" />
 <asp:LinkButton ID="DeleteButton" runat="server" CausesValidation="False"
CommandName="Delete" Text="Delete" />
 <asp:LinkButton ID="NewButton" runat="server" CausesValidation="False"
CommandName="New" Text="New" />
</ItemTemplate>
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
</asp:FormView>
<asp:SqlDataSource ID="SqlDataSource2" runat="server"
ConflictDetection="CompareAllValues"
ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>"
DeleteCommand="DELETE FROM [Categories] WHERE [CategoryID] = @original_CategoryID AND [CategoryName] = @original_CategoryName AND (([Description] = @original_Description) OR ([Description] IS NULL AND @original_Description IS NULL))"
InsertCommand="INSERT INTO [Categories] ([CategoryName], [Description]) VALUES (@CategoryName, @Description)"
OldValuesParameterFormatString="original_{0}"
SelectCommand="SELECT [CategoryID], [CategoryName], [Description] FROM [Categories] WHERE ([CategoryID] = @CategoryID)"
UpdateCommand="UPDATE [Categories] SET [CategoryName] = @CategoryName, [Description] = @Description WHERE [CategoryID] = @original_CategoryID AND [CategoryName] = @original_CategoryName AND (([Description] = @original_Description) OR ([Description] IS NULL AND @original_Description IS NULL))">
<DeleteParameters>
<asp:Parameter Name="original_CategoryID" Type="Int32" />
<asp:Parameter Name="original_CategoryName" Type="String" />
<asp:Parameter Name="original_Description" Type="String" />
</DeleteParameters>
<InsertParameters>
<asp:Parameter Name="CategoryName" Type="String" />
<asp:Parameter Name="Description" Type="String" />
</InsertParameters>
<SelectParameters>
<asp:ControlParameter ControlID="GridView1" Name="CategoryID"
PropertyName="SelectedValue" Type="Int32" />
</SelectParameters>
<UpdateParameters>
<asp:Parameter Name="CategoryName" Type="String" />
<asp:Parameter Name="Description" Type="String" />
<asp:Parameter Name="original_CategoryID" Type="Int32" />
<asp:Parameter Name="original_CategoryName" Type="String" />
<asp:Parameter Name="original_Description" Type="String" />
</UpdateParameters>
</asp:SqlDataSource>
<br />
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
CellPadding="4" DataKeyNames="CategoryID" DataSourceID="SqlDataSource1"
ForeColor="#333333" GridLines="None">
<AlternatingRowStyle BackColor="White" ForeColor="#284775" />
<Columns>
<asp:CommandField SelectText="Edit" ShowDeleteButton="True"
ShowSelectButton="True" />
<asp:BoundField DataField="CategoryID" HeaderText="CategoryID"
InsertVisible="False" ReadOnly="True" SortExpression="CategoryID" />
<asp:BoundField DataField="CategoryName" HeaderText="CategoryName"
SortExpression="CategoryName" />
<asp:BoundField DataField="Description" HeaderText="Description"
SortExpression="Description" />
</Columns>
<EditRowStyle BackColor="#999999" />
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
<SortedAscendingCellStyle BackColor="#E9E7E2" />
<SortedAscendingHeaderStyle BackColor="#506C8C" />
<SortedDescendingCellStyle BackColor="#FFFDF8" />
<SortedDescendingHeaderStyle BackColor="#6F8DAE" />
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConflictDetection="CompareAllValues"
ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>"
DeleteCommand="DELETE FROM [Categories] WHERE [CategoryID] = @original_CategoryID AND [CategoryName] = @original_CategoryName AND (([Description] = @original_Description) OR ([Description] IS NULL AND @original_Description IS NULL))"
InsertCommand="INSERT INTO [Categories] ([CategoryName], [Description]) VALUES (@CategoryName, @Description)"
OldValuesParameterFormatString="original_{0}"
SelectCommand="SELECT [CategoryID], [CategoryName], [Description] FROM [Categories]"
UpdateCommand="UPDATE [Categories] SET [CategoryName] = @CategoryName, [Description] = @Description WHERE [CategoryID] = @original_CategoryID AND [CategoryName] = @original_CategoryName AND (([Description] = @original_Description) OR ([Description] IS NULL AND @original_Description IS NULL))">
<DeleteParameters>
<asp:Parameter Name="original_CategoryID" Type="Int32" />
<asp:Parameter Name="original_CategoryName" Type="String" />
<asp:Parameter Name="original_Description" Type="String" />
</DeleteParameters>
<InsertParameters>
<asp:Parameter Name="CategoryName" Type="String" />
<asp:Parameter Name="Description" Type="String" />
</InsertParameters>
<UpdateParameters>
<asp:Parameter Name="CategoryName" Type="String" />
<asp:Parameter Name="Description" Type="String" />
<asp:Parameter Name="original_CategoryID" Type="Int32" />
<asp:Parameter Name="original_CategoryName" Type="String" />
<asp:Parameter Name="original_Description" Type="String" />
</UpdateParameters>
</asp:SqlDataSource>

 <asp:FormView ID="FormView1" runat="server" CellPadding="4"