Trouble w/ GridView Radio buttons

[Krish]

Hello Gurus,

I have GridView control on web page which has couple of radio button
controls as one group. On editing a particular row in grid, i have to
validate based on user selection on radio button i have to validate another
column data in the grid. Pl. help me with code snippets. Thank you.

<asp:TemplateField HeaderText="Code Translate">

<ItemTemplate>

<asp:RadioButton GroupName="rdTrans" id="rdTranslateP" runat="server"
Text='P' checked='<%# GetCheckP((string)DataBinder.Eval(Container.DataIt em,
"in_translate")) %>' ToolTip="Permanant" Enabled="False"/>

<asp:RadioButton GroupName="rdTrans" id="rdTranslateT" runat="server"
Text='T' checked='<%# GetCheckT((string)DataBinder.Eval(Container.DataIt em,
"in_translate")) %>' ToolTip="Temporary" Enabled="False"/>

</ItemTemplate>

<EditItemTemplate>

<asp:RadioButton GroupName="rdTransE" id="rdTranslatePE" runat="server"
Text='P' checked='<%# GetCheckP((string)DataBinder.Eval(Container.DataIt em,
"in_translate")) %>' ToolTip="Permanant"/>

<asp:RadioButton GroupName="rdTransE" id="rdTranslateTE" runat="server"
Text='T' checked='<%# GetCheckT((string)DataBinder.Eval(Container.DataIt em,
"in_translate")) %>' ToolTip="Temporary"/>

</EditItemTemplate>