How to Prevent Asp .Net Button double click to store one record at a time ?

For Asp .Net Button Click

<asp:Button
 id="abc" 
runat="server"
UseSubmitBehavior="false"                                       

OnClientClick="this.disabled='true';this.value='Please Wait...';"
asp:Button/>


For Asp .Net Image Button

<asp:ImageButton 
id="abc" 
ImageUrl="..."
runat="server"
/>

Put below code in page load for specific button:


protected void Page_Load(object sender, EventArgs e)
{
abc.Attributes.Add("onclick","this.disabled='true';"   +ClientScript.GetPostBackEventReference(abc,null) +";this.src='Images/wait.png'  ; ");
}