In Registration form Data insert into database automaticaly when i m refreshing the page

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I am creating a Register Page..on submit button all the data can be store in the database ....but when i am refreshing the page data automatically insert into database without click to the submit button

C#

using System.Data.SqlClient;

public partial class radiobutton : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        Label1.Visible = false;
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        if((RadioButtonList1.SelectedValue=="")||(TextBox1.Text=="")||(DropDownList1.Text=="Select"))
        {
            Label1.Visible = true;
        }
        else
        {
        SqlConnection con = new SqlConnection();
        con.ConnectionString = "Initial Catalog=dev; Data Source=.; Integrated Security=true";
        con.Open();
        SqlCommand cmd = new SqlCommand();
        cmd.CommandText = "insert into inserttest values('" + RadioButtonList1.SelectedItem.Text + "','" + TextBox1.Text + "','" + DropDownList1.SelectedValue + "','" + CheckBox1.Checked + "')";
        cmd.Connection = con;

        cmd.ExecuteNonQuery();
        con.Close();
       
        Response.Redirect(Request.Url.AbsolutePath);
        RadioButtonList1.Text = "";
        TextBox1.Text = "";
        DropDownList1.Text = "Select";
        Label1.Visible = false;
        
        }
    }
}

Please help me to solve this problem

Posted 29-Aug-12 21:08pm

Devendra 1988

Updated 29-Aug-12 21:18pm

André Kraak

v2

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2 solutions

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anjani123 · Accepted Answer · 2012-08-30T01:27:00

Solution 2

C#

//to avaoid pressing F5 key

document.onkeydown = function()
 {
          if(event.keyCode==116) {
          event.keyCode=0;
          event.returnValue = false;
          }
}

//to avoid refresh, using context menu of the browser

document.oncontextmenu = function() {event.returnValue = false;}

Posted 30-Aug-12 1:27am

anjani123

Comments

Devendra 1988 30-Aug-12 7:59am

above code implement in load page or where it i write the code

_Amy 30-Aug-12 9:07am

My +4. Good enough. :)

karnan sekar · Accepted Answer · 2012-08-30T00:14:00

Solution 1

http://csharpdotnetfreak.blogspot.com/2009/09/detect-page-refresh-in-aspnet.html[^]

Posted 30-Aug-12 0:14am

karnan sekar