asp.net - Validation called on controls from different validation groups -

i have 2 buttons , other controls in page. button1 has validation group validation1 , button2 has validation2. when click button1, controls validation2 validated, not supposed happen. how can avoid this?

have putted validation group controls.you need give validation groups controls fields including validator controls. following.

<form id="form1" runat="server"> <div>      <asp:textbox runat="server" id="firsttextbox" validationgroup="vg1"></asp:textbox>      <asp:requiredfieldvalidator runat="server" id="requiredfirst" controltovalidate="firsttextbox" validationgroup="vg1"></asp:requiredfieldvalidator>      <asp:button runat="server" validationgroup="vg1" text="savedata" id="btnsavefirst"/> </div>     <div>      <asp:textbox runat="server" id="secondtextbox" validationgroup="vg2"></asp:textbox>      <asp:requiredfieldvalidator runat="server" id="requiredsecond" controltovalidate="secondtextbox" validationgroup="vg2"></asp:requiredfieldvalidator>      <asp:button runat="server" validationgroup="vg2" text="savedata" id="btnsavesecond"/> </div> </form>