每当我尝试刷新页面时，获取消息

Question

I have one web page with Model Pop-up.

Without any submit when I close this pop-up and Refresh page, Browser give me message like this...

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FIREFOX message

GOOGLE CHROME message

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and if I click on Resend or Continue button, browser again give me my Model Pop-Up.

How can I fix this problem??

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This is my code for display Pop-up

protected void applynow_Click(object sender, ImageClickEventArgs e)
{
    pa1.Visible = true;   
    mo1.Show();
}

Answer 1

to prevent an unwanted POST while refreshing your page after a previous POST, use Post/Redirect/Get (PRG) pattern. after posting your page send a 302/303 response to your client browser and ask it redirect and initiate a get request.