Hello Friends, 

I have Two TextBOx; TextBox1 and TextBox13.
TextBox1 is for Birth Date and TextBox14 for Retired Date.

My Problem is I want To display Retirement Date in TextBox14 Automaticlly by Adding 58 yeras in BirthDate At a time when user fill the Birth Date Textbox.That works fine with Code like that.

on TextBox13_Textchanged event

TextBox14.Text = dt.AddYears(58).ToString("MM/dd/yyyy");

But My problem is that When user Enter Wrong Date in BirthDate textbox then it will give error on page

rather fire Validator. I already applied validator for birthdate to validate proper datetime format.

How can I solve this matter please tel me...

Please help me.

you calendar to prevent all these kinds of error

you can use the build in ajax calendar

http://www.asp.net/AJAX/AjaxControlToolkit/Samples/Calendar/Calendar.aspx

kazi_azhar:

But My problem is that When user Enter Wrong Date in BirthDate textbox then it will give error on page

Based from your previous thread: http://forums.asp.net/p/1427439/3189306.aspx

I have stated there that "when accepting inputs from the user then I would suggest to use DateTime.TryParse method instead to avoid format exceptions when converting strings value to DateTime format".

To validate the format that was entered in the TextBox control then you can refer to this thread for a solution: http://forums.asp.net/t/1297096.aspx

duplicate post... http://forums.asp.net/t/1427439.aspx

  you write this code

<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
    <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
   
      <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" /> 


in page aspx.cs file
under button click event

protected void Button1_Click(object sender, EventArgs e)
    {
        TextBox1.Text = DateTime.Today.ToShortDateString();
        DateTime dt = DateTime.Parse(TextBox1.Text);
        TextBox2.Text = dt.AddYears(58).ToString();
    }

i hope it helps you

aditya1986:

        DateTime dt = DateTime.Parse(TextBox1.Text);

See my reply above why I will not recommend using DateTime.TryParse method.

 Hi vinz

if you convert TextBox1.Text  value  into  Datetime  format than it wont create any problem according to my opinion .if not we can suggest your method