Form loading again when the data in the drop down is selected

Question

I have a registration where the user will enter the following details:

Email address, Password, Confirm password, A drop down menu with option Employee or Contractor.

When Employee is selected they are not required to provide start date but for contractor they have to provide start date.

    protected void Button1_Click(object sender, EventArgs e)
    {
        {

            {
                SqlConnection sqlCon = new SqlConnection(strCon);
                SqlCommand cmd = new SqlCommand("UpdateRequest", sqlCon);
                cmd.CommandType = CommandType.StoredProcedure;
                cmd.CommandText = "UpdateRequest";
                cmd.Connection = sqlCon;

                cmd.Parameters.AddWithValue("@EmailAddress", txtEmailAddress.Text);
                cmd.Parameters.AddWithValue("@Password", txtPassword.Text);

                cmd.Parameters.AddWithValue("@ConfirmPassword", txtConfirmPassword.Text);
                cmd.Parameters.AddWithValue("@JobRole", ddJobRole.Text);
                cmd.Parameters.AddWithValue("@StartDate", txtStartDate.Text);
                SqlParameter rpv = new SqlParameter();
                rpv.DbType = DbType.Int32;
                rpv.Direction = ParameterDirection.ReturnValue;

                cmd.Parameters.Add(rpv);

                try
                {
                    sqlCon.Open();
                    cmd.ExecuteScalar();

                    int retValue = Convert.ToInt32(rpv.Value);


                        if (retValue == 10)
                            lblMessage.Text = "Request was sent successfully!";

                        if (retValue == 11)
                            lblMessage.Text = "*Email Address is already registered.";

                        if (retValue == 12)
                            lblMessage.Text = "*Passwords do not match.";

                        if (retValue == 13)
                            lblMessage.Text = "Sorry, Your application was already denied earlier.";       
                }

                catch (Exception)
                {

                    lblMessage.Text = "";

                }

            }
        }

    }

protected void ddJobRole_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (ddJobRole.SelectedValue == "Contractor")
        {
            RequiredFieldValidator27.Enabled = true; //Initally disabled it
        }
        else
        {
            RequiredFieldValidator27.Enabled = false;
        }
    }

Here the problem is whenever I select any option from the drop down the form loads again and asks password and confirm password for the second time. Can anyone tell me what the problem is?

Sounds like the event is firing a postback. Do you have initialization code wrapped in a if (!IsPostBack)? — Mike Schwartz, Dec 03 '13 at 22:57
A little more code would be useful. Include some code where you are initializing things (for example where the username and password is first verified) probably in the PageLoad event. — Mike Schwartz, Dec 03 '13 at 23:01

score 1 · Accepted Answer · answered Dec 03 '13 at 23:16

1

The password and the confirmation password fields are not kept their values after the post back for security reasons. This input controls are not have the same behavior as the rest controls.

Now from the code I see, you do not actually need to make full post back for this behavior on code behind, you can easy use javascript and do the same on client side with out post back, and without loose the input of the password.

answered Dec 03 '13 at 23:16

Aristos

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How do I do that in javascript? – Valley Dec 03 '13 at 23:19
@Valley Start from here: http://stackoverflow.com/questions/1085801/how-to-get-the-selected-value-of-dropdownlist-using-javascript Get the selected option, and acording to that, change your request validation. And remove the autopostback on the dropdown list – Aristos Dec 03 '13 at 23:20

Form loading again when the data in the drop down is selected

1 Answers1