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check for valid date when textbox is visible

I have asp.net page with checkbox and textbox, if checkbox is checked then textbox is made visible and I then need to check for a valid date. However if checkbox is not checked then I hide textbox and do not need to check for a valid date. How can I do this? This is my code.......

if (checkbox.Checked)
{
customer.DateRaised = DateTime.Parse(txtDate.Text); //check for valid date here
}
else
{
customer.DateRaised = DateTime.Now;
}

Pratima

best way you can use any date control along with textbox

Pratima

try this

http://www.javascriptkit.com/script/script2/tengcalendar.shtml

mugsey

ASKER

Thanks but I need to use microsoft controls within visual studio

ASKER CERTIFIED SOLUTION

karstieman

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Deathrace

hey,
checkbox should be enabled with Autopostback property,,,see below..for the definition

<asp:CheckBox ID="CheckBox1" runat="server"
oncheckedchanged="CheckBox1_CheckedChanged" Checked="false" AutoPostBack="true" />

In the Page load event
PageLoad()
{
txtDate.Visible =false; //make your textbox false
}

In the CheckBox1_checkedChanged()
{
if (CheckBox1.Checked)
TextBox1.Visible = true;
else
TextBox1.Visible= false;
}

In the TextBox1_TextChanged event()
{
customer.DateRaised = DateTime.Parse(TextBox1.Text);
}

Pratima

You can try like this

If CheckBox1.Checked = True Then
TextBox1.Visible = True
Else
TextBox1.Visible = False
TextBox1.Text = DateTime.Now
End If

Add regular expression validator with date validation regular expression
when checkbox not selected just set valid date as now