CODEWITHSUNDEEP
c#wpfvb.netxaml
Hitesh
Hitesh

Reputation: 1

DatePicker in xaml.vb

I am completely new to XAML.vb. when I want to calculate the age in .cs, I used to enter the following code:

private void dateTimePicker1_valueChanged (object sender, EventArgs e)
{
DateTime from = dateTimePicker1.Value;
DateTime  to = dateTimePicker1.Now;
TimeSpan Tspan = to-from;
double days = Tspan.TotalDays;
textbox1.Text = (days/365)ToString("0");
}

The following code is from XAML.VB. All the functions that I used in cs before are not present.

Private Sub dob_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)

{

DateTime from = dob.Value;  // it doesn't exist. I found dob.GetValue but its not helping.

}

Same was with "TimeSpan" and all the other built-in functions from Microsoft they have changed it so much and much is not available on the internet. It would be great if someone has any idea about it. Thanks

Upvotes: 0

Views: 124

Answers (2)

mm8
mm8

Reputation: 169400

DateTimePicker is a WindowsForms control. In WPF the control is called DatePicker and it has a SelectedDate property that returns a Nullable(Of DateTime).

Try this.

XAML:

<DatePicker x:Name="dob" SelectedDateChanged="dob_SelectedDateChanged" />
<TextBox x:Name="textBox1" />

VB.NET:

Private Sub dob_SelectedDateChanged(sender As Object, e As SelectionChangedEventArgs)
    Dim fromDate = dob.SelectedDate.Value
    Dim toDate = DateTime.Now
    Dim tspan = toDate - fromDate
    Dim days = tspan.TotalDays
    textBox1.Text = days.ToString
End Sub

Upvotes: 1

Lina
Lina

Reputation: 163

Timespan is available in vb too... check on this

https://msdn.microsoft.com/en-us/library/bk8a3558(v=vs.110).aspx?cs-save-lang=1&cs-lang=vb#code-snippet-1

Follwoing is the same code in vb .... 

Private Sub dateTimePicker1_valueChanged(sender As Object, e As EventArgs)
    Dim from As DateTime = dateTimePicker1.Value
    Dim [to] As DateTime = dateTimePicker1.Now
    Dim Tspan As TimeSpan = [to] - from
    Dim days As Double = Tspan.TotalDays
    textbox1.Text = (days / 365).ToString("0")
End Sub

Upvotes: 0

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