Re: Confirm before delete by Rajani
Rajani
Mon Dec 06 21:55:01 CST 2004
Hello,
Thanx 4 the reply. I got it now. But, i have another problem...
I have a table with fields sizeCode,sizeRange,s1,s2,..s12,r1,r2,...r12
I designed a form to perform Addition, Edit and Delete
Addition is performed thru ordinary form(jus by placing all the reqd
controls and do insert on button click). When i click Edit link on datagrid,
its placing textboxs to all editable columns. As the columns are many, the
datagrid is expanding to long width coz the textbox is placed with size 20 on
each columns. This doesnt look easy to edit. I want to do to retrieve all the
column values on to my form when i click edit and do manually like addition.
How can i retrieve all the values and corr datakey(sizeCode)?
"Norman Yuan" wrote:
> The problem is in the ItemBound() EventHandler. it runs on every item in the
> DataGrid, including Header, Item, AlternateItem, Footer, while the "Delete"
> button does not present on Header and Footer, hense you get "Object
> Reference not set" when the e.Item is Header/Footer.
>
> You can either
>
> System.Web.UI.WebControls.DataGridItemEventArgs) Handles
> dgbrand.ItemDataBound
> Dim mybut As LinkButton
> If e.Item.ItemType=ListItemType.Item Or
> e.Item.ItemType=ListItemType.AlternateItem Then
> mybut = e.Item.FindControl("cmddel")
> mybut.Attributes.Add("onclick", "return confirm('Are you sure
> to delete?')")
> End If
> End Sub
>
> Or simply:
>
> System.Web.UI.WebControls.DataGridItemEventArgs) Handles
> dgbrand.ItemDataBound
> Dim mybut As LinkButton
> mybut = e.Item.FindControl("cmddel") '''mybut could be Nothing
> id the e.Item is Header/Footer or other row that does not have the "Delete"
> button
> If Not (mybut Is Nothing) Then
> mybut.Attributes.Add("onclick", "return confirm('Are you sure
> to delete?')")
> End If
> End Sub
>
> "Rajani" <Rajani@discussions.microsoft.com> wrote in message
> news:40686920-2966-4C06-9257-32C20103C041@microsoft.com...
> > Hello,
> >
> > How do i confirm before delete from the datagrid?
> > I did like this. But getting error... "Object Reference not set to an
> > instance of object"
> >
> > <asp:datagrid id="dgbrand" Runat="server" Font-Size="12px"
> Font-Name="arial"
> > BorderColor="SteelBlue" OnEditCommand="editMode"
> OnUpdateCommand="doUpdate"
> > OnCancelCommand="cancelEdit" DataKeyField="brand_code"
> > AutoGenerateColumns="False" Width="400px" Font-Names="arial"
> > OnDeleteCommand="doDelete"> <AlternatingItemStyle
> > BackColor="#CCCCCC"></AlternatingItemStyle> <HeaderStyle Font-Bold="True"
> > BackColor="Salmon"></HeaderStyle>
> > <Columns>
> > <asp:EditCommandColumn ButtonType="LinkButton" UpdateText="Update"
> > CancelText="CAN" EditText="Edit"></asp:EditCommandColumn>
> > <asp:BoundColumn DataField="brand_code" ReadOnly="True" HeaderText="Brand
> > Code">
> > <ItemStyle HorizontalAlign="Center"></ItemStyle>
> > </asp:BoundColumn>
> > <asp:BoundColumn DataField="brand_name"
> > HeaderText="Description"></asp:BoundColumn>
> > <asp:TemplateColumn>
> > <ItemTemplate>
> > <asp:LinkButton ID="cmddel" Runat="server" Font-Underline="True"
> > ForeColor="#0000ff" CommandName="Delete">Del</asp:LinkButton>
> > </ItemTemplate>
> > </asp:TemplateColumn></Columns> </asp:datagrid>
> >
> > Private Sub dgbrand_ItemDataBound(ByVal sender As Object, ByVal e As
> > System.Web.UI.WebControls.DataGridItemEventArgs) Handles
> dgbrand.ItemDataBound
> > Dim mybut As LinkButton
> > mybut = e.Item.FindControl("cmddel")
> > mybut.Attributes.Add("onclick", "return confirm('Are you sure to
> > delete?')")
> > End Sub
> >
> >
> > And, i placed the controls manually in the table tag.
> > When i rebuild the project, automatically some unnecessary table is adding
> > in VS.NET that changes my actual alignment. How can i stop this?
> >
> > Thanx in advance
>
>
>