How will you make a button the default button?

You can do that by setting the DefaultButton attribute of the form in which the button is present.


Ex:
<form id=f1 defaultbutton="btnSubmit" runat="server">
<asp:textbox id="textbox1" runat="server"/>
<asp:button id="button1" text="btnSubmit" runat="server"/>
</form>

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