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lost focus events in data grids

lost focus events in data grids

Hello all,

I was curious if anyone knows if there are any events, like the lost focus of text boxes, for individual cells in a datagrid.  I have a couple of functions that I call on the lost focus for any text boxes that have to be currency...which includes some validation.  I really need to call this for a datagrid that users will be entering new data into (or possibly editing data).  I would guess that there is something similar, since the grid dynamically creates new rows after you tab out of the last column.  Any ideas on how to reference this?

Thanks in advance,

- "The truth hurts, maybe not as much as jumping on a bicycle with no seat, but it hurts."

RE: lost focus events in data grids

You can use template column to insert ASP.NET validators so that the validation happens on the client side. Below is sample snippet.

<asp:datagrid id="productGrid" Width="100%" AutoGenerateColumns="False" Runat="server">
     <asp:TemplateColumn HeaderText="Product">            <ItemTemplate>                             <asp:Label id=productLabel runat="server" Width="100%" Text='<%# DataBinder.Eval(Container, "DataItem.Product") %>'>                     </asp:Label>                    </ItemTemplate>                        <EditItemTemplate>                         <asp:TextBox id=productTextBox style="TEXT-ALIGN: center" runat="server" Width="100%" Text='<%# DataBinder.Eval(Container, "DataItem.Product") %>' MaxLength="4">                                   </asp:TextBox>                        <asp:CompareValidator id="Comparevalidator2" runat="server" ErrorMessage="Product unit is not a valid number."
 ControlToValidate="productTextBox" Display="None" Operator="DataTypeCheck" Type="Integer"></asp:CompareValidator>                    <asp:RequiredFieldValidator id="Requiredfieldvalidator2" runat="server" ErrorMessage="Please enter the Product unit."
 ControlToValidate="productTextBox" Display="None"></asp:RequiredFieldValidator>            </EditItemTemplate>    

hope this helps!


RE: lost focus events in data grids

afaik you have an event called CurrentCellChanged.

"two wrongs don't make a right, but three lefts do" - the unknown sage

RE: lost focus events in data grids

ooo.....thanks guys....sorry I didn't thank you earlier, I just got back from being out of town.

I'll check out these options.

Thanks again,


- "The truth hurts, maybe not as much as jumping on a bicycle with no seat, but it hurts."

RE: lost focus events in data grids

Ok, I have tried doing the currentcellchanged event in our datagrid, but ended up getting stuck in an infinite loop (somewhat embarassing since I haven't done that in years).  In the currentcellchanged I used the column and row to establish if I wanted to call the validation code that I have written.  Is there any better way to handle it, than forcing a check for the column and row every time a user tabs through the grid?  Like, can I force it to call my validation code only when the user leaves a certain cell?

Any help would be appreciated.

thanks in advance,

- "The truth hurts, maybe not as much as jumping on a bicycle with no seat, but it hurts."

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