Limitation Login

Step 1:Use NameSpaces As

using System.Data.SqlClient;


Step 2: Global Declaration Are:

SqlConnection con = new SqlConnection("Ur Connection");


Step 3:Page_Load

protected void Page_Load(object sender, EventArgs e)
{

if (!Page.IsPostBack)
{
this.ViewState["count"] = 0;
}


}

Step 4:write a Method

public void m()
{
string user = "";
string pass = "";
string str = "select * from tbl_Login where username='" + TextBox1.Text + "' and password='" + TextBox2.Text + "'";
//string count = "";
con.Open();
SqlCommand cmd = new SqlCommand(str, con);
cmd.CommandType = CommandType.Text;
SqlDataReader dr;
dr = cmd.ExecuteReader();
while (dr.Read() == true)
{
user = dr[1].ToString();
pass = dr[2].ToString();


}


dr.Close();
if (TextBox1.Text == user && TextBox2.Text == pass)
{
Response.Redirect("Default2.aspx");
}
else
{
Label1.Text = "Login Failed";
}
con.Close();


Step 5: On Button Click

protected void Button1_Click(object sender, EventArgs e)
{
int i = Convert.ToInt32 (this.ViewState["count"].ToString())+1;
//int i = this.ViewState["count"] + 1;

this.ViewState["count"]=i;
if (i <=3)
{


m();



}
else
{
Label1.Text = "Please Contact Admin.. YOuR Login Limit Exceed";
}
}