Validating these textboxes only the last one works

See more:

C#

WinForms

controls

C#5.0

hello all,

my friend tried explaining to me how my error message is being overwritten and i tried making a custom variable to hold the message but i am still getting the same error.
Only my last validation works on these textboxes and all my ones before it are blank.

Could someone explain or help me come up with a good solution for these?

here is what i have been working on.

Also the beginning message

-missing information has not been added to any of my errors although i did a += so i thought that it would be added.

bool accountFlag = false;
string message = "";   //i just added this variable ...
 lblAcctMsg.Text = "Missing Information";

if (this.txtAccountName.Text == "")
            {
                message = " - AccountName";
                lblAcctMsg.Text += message; //" - AccountName";
                lblAccountnameErr.Visible = true;
                accountFlag = true;
            }
            else
            {
                message = "";
                lblAccountnameErr.Visible = false;
                lblAcctMsg.Text = "" + message;
            }
            //primary account id textbox
            if (this.txtPrimaryAct.Text == "")
            {
                lblAcctMsg.Text += " - Primary AccountName";
                lblPrimaryAccountIDError.Visible = true;
                accountFlag = true;
            }
            else
            {
                lblPrimaryAccountIDError.Visible = false;
                lblAcctMsg.Text = "";
            }
try
            {
                double d = Convert.ToDouble(txtVolatility.Text);
                if (this.txtVolatility.Text == "")
                {
                    lblAcctMsg.Text = " - Volatility";
                    lblVolatilityError.Visible = true;
                    accountFlag = true;
                }
                else
                {
                    lblVolatilityError.Visible = false;
                    lblAcctMsg.Text = "";
                }
            }
            catch
            {
                lblAcctMsg.Text = " - Volatility";
                lblVolatilityError.Visible = true;
                accountFlag = true;
            }
            if (accountFlag)
                return;