BEN wrote:
> Hi,
>
> I want to add a custom validator to a dataGrid's boundcolumn. I use
> datagrid's "edit, update, cancel" button to do. But I cannot find a method
> to add the validator to boundcolumn.
>
> In other way, I try to use TemplateColumn and EditItemTemplate with custom
> validator. But I cannot bind the value to each corresponding column. All
> values in the column are the same. The code is shown as below.
>
> <asp:BoundColumn DataField="CustomerID" SortExpression="CustomerID"
> HeaderText="CustomerID"></asp:BoundColumn>
> <asp:BoundColumn Visible="False" DataField="EmployeeID"
> SortExpression="EmployeeID" HeaderText="EmployeeID"></asp:BoundColumn>
> <asp:BoundColumn DataField="Freight" SortExpression="Freight"
> HeaderText="Freight"></asp:BoundColumn>
> <asp:TemplateColumn SortExpression="OrderDate" HeaderText="OrderDate">
> <ItemTemplate>
> <%# DataBinder.Eval(DataSet11,
> "Tables[Orders].Defaultview.[0].OrderDate", "{0:d}") %>
> </ItemTemplate>
> <EditItemTemplate>
> <asp:TextBox id=TextBox1 runat="server" Text='<%#
> DataBinder.Eval(DataSet11, "Tables[Orders].OrderDate", "{0:d}") %>'>
> </asp:TextBox>
> <asp:CustomValidator id=CustomValidator2 runat="server"
> ErrorMessage='<%# DataBinder.Eval(DataSet11,
> "Tables[Orders].DefaultView.[0].OrderDate", "{0:d}")
> %>'>*</asp:CustomValidator>
> </EditItemTemplate>
> </asp:TemplateColumn>
>
>
> What is the best way to validate a value in dataGrid? Or use other server
> control?
>
> Thanks in advance.
>
>

> You have to use a TemplateColumn if you want to add validators for your
> editing interface.
>
> Try the following syntax for your EditItemTemplate:
>
> <asp:TextBox ... Text='<%# DataBinder.Eval(Container.DataItem,
> "ColumnName")' />
>
> Container.DataItem returns the "record" bound to the particular row, so
> you want to use that to get the column record, and not the DataSet class
> like you're doing now.
>
> hth
>
>
>
> BEN wrote:
> > Hi,
> >
> > I want to add a custom validator to a dataGrid's boundcolumn. I use
> > datagrid's "edit, update, cancel" button to do. But I cannot find a
method
> > to add the validator to boundcolumn.
> >
> > In other way, I try to use TemplateColumn and EditItemTemplate with
custom
> > validator. But I cannot bind the value to each corresponding column. All
> > values in the column are the same. The code is shown as below.
> >
> > <asp:BoundColumn DataField="CustomerID"
SortExpression="CustomerID"
> > HeaderText="CustomerID"></asp:BoundColumn>
> > <asp:BoundColumn Visible="False" DataField="EmployeeID"
> > SortExpression="EmployeeID" HeaderText="EmployeeID"></asp:BoundColumn>
> > <asp:BoundColumn DataField="Freight" SortExpression="Freight"
> > HeaderText="Freight"></asp:BoundColumn>
> > <asp:TemplateColumn SortExpression="OrderDate"
HeaderText="OrderDate">
> > <ItemTemplate>
> > <%# DataBinder.Eval(DataSet11,
> > "Tables[Orders].Defaultview.[0].OrderDate", "{0:d}") %>
> > </ItemTemplate>
> > <EditItemTemplate>
> > <asp:TextBox id=TextBox1 runat="server" Text='<%#
> > DataBinder.Eval(DataSet11, "Tables[Orders].OrderDate", "{0:d}") %>'>
> > </asp:TextBox>
> > <asp:CustomValidator id=CustomValidator2 runat="server"
> > ErrorMessage='<%# DataBinder.Eval(DataSet11,
> > "Tables[Orders].DefaultView.[0].OrderDate", "{0:d}")
> > %>'>*</asp:CustomValidator>
> > </EditItemTemplate>
> > </asp:TemplateColumn>
> >
> >
> > What is the best way to validate a value in dataGrid? Or use other
server
> > control?
> >
> > Thanks in advance.
> >
> >
>
>
> --
>
> Scott Mitchell
> mitchell@4guysfromrolla.com
> http://www.4GuysFromRolla.com
>
> * When you think ASP.NET, think 4GuysFromRolla.com!