<asp:datagrid id="dg_courier" runat="server" CssClass="SearchResults" OnDeleteCommand="dg_Delete"
OnEditCommand="EditGrid" OnUpdateCommand="UpdateGrid" OnCancelCommand="CancelUpdate" CaptionAlign="Top"
AutoGenerateColumns="False" AllowSorting="True" onsortcommand="dg_courier_SortCommand">
<EditItemStyle BackColor="#00C0C0"></EditItemStyle>
<AlternatingItemStyle CssClass="DataGridAlternatingRowStyle"></AlternatingItemStyle>
<ItemStyle CssClass="DataGridRowStyle"></ItemStyle>
<HeaderStyle ForeColor="White" CssClass="DataGridHeaderRowStyle"></HeaderStyle>
<Columns>
<asp:TemplateColumn HeaderText="courier name" SortExpression="courier_name">
<ItemStyle Wrap="False" HorizontalAlign="Center"></ItemStyle>
<ItemTemplate>
<asp:Label runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.courier_name") %>' ID="lblcourier_name">
</asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txtcourier_name" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.courier_name") %>'>
</asp:TextBox>
</EditItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="contact number">
<ItemTemplate>
<asp:Label ID="Label9" runat="server" Text='<%#DataBinder.Eval(Container, "DataItem.contact_number") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txtcontact" runat="server" Text='<%#DataBinder.Eval(Container, "DataItem.contact_number") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="courier_txtmsg_email">
<ItemStyle Wrap="False" HorizontalAlign="Center"></ItemStyle>
<ItemTemplate>
<asp:Label runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.courier_txtmsg_email") %>' ID="Label1">
</asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txtcourier_txtmsg_email" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.courier_txtmsg_email") %>'>
</asp:TextBox>
</EditItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="GWlab ID" SortExpression="gwlabid">
<ItemTemplate>
<asp:Label ID="Label12" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.gwlabid") %>'></asp:Label></ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txtlabid" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.gwlabid") %>'></asp:TextBox></EditItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="Assigned territory" SortExpression="assigned_territory">
<ItemTemplate>
<asp:Label ID="Label13" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.assigned_territory") %>'></asp:Label></ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txtassigned" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.assigned_territory")%>'></asp:TextBox></EditItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="area_name" Visible="false">
<ItemStyle Wrap="False" HorizontalAlign="Center"></ItemStyle>
<ItemTemplate>
<asp:Label runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.area_name") %>' ID="Label2">
</asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txtarea_name" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.area_name") %>'>
</asp:TextBox>
</EditItemTemplate>
</asp:TemplateColumn>
第一步：我想要gwlabid如果有值了，delete按钮就是灰色的。
第二步：如果delete变成灰色的，只有contact number和txtcourier_txtmsg_email是可编辑的。
请问该怎么下手。
