Date. IsDate instead of IsNumeric .

Date. IsDate instead of IsNumeric .

• Damiaan

  Thank you very much for your help.

  it shows me the date exactly in the format i wanted, but i am unable to enter/edit any date in that textbox.

  can you please give me solution for that..

  thanks

  vimal

  
  
  

• KarimRadi

  Vimal_Rupera wrote:

  Thank you very much for your help. it shows me the date exactly in the format i wanted, but i am unable to enter/edit any date in that textbox. can you please give me solution for that.. thanks vimal

  Hi,

  When you get the date in the textbox, click in it and then don't delete all of a single number if you can ( else you get my error message i thought you wanted date checking anyway ) , and keep the day in the range for that month. Don't try deleting the forward slash marks either as the blue highlighted bits here>>31/03/2007.

  So if the month is Jan,Mar,May,July,Aug,Oct or Dec the date is up to the 31st all other months 30 of course except for Feb 28 or 29

  It works on my computer, i can't see why it shouldn't work on yours

  Regards,

  S_DS

  
  
  

• fripper

  Dave299 wrote:

  Oh come on - that is totally unusable. Doing the check in the textchanged event prevents you from entering a date into an empty textbox as well as making it infuriating to try and change the current date to one you want - might make an amusing game though. What is the point of defining an IsDate function when it already exists in VB.

  Hi,

  Fair enough, I am still learning myself.

  I didn't try looking up IsDate either.

  Regards,

  S_DS

  
  
  

• Jason Wilborn

  Hi

  To parse a date to a string, pass the relevant format to the ToString method as shown already.

  To parse a string to a date, take a look at the DateTime.Parse and TryParse methods.  Please pay particular attention to the format provider and style parameters of these methods.

  Do you really need to reinvent the wheel here .... what is wrong with the DateTimePicker control

  Richard

  
  

• Zep--

  In DateTime Picker user would have to select the date insted enter.

  and it would be much easier to enter date for user insted selecting by up and down arrows.

  Anyways Thanks for your answer.

  
  
  

• RussP

   

  -----------------------------------I've updated this post. :-)

  Hi,

  Try this, it appears to work nicely. :-)

   I thought i'd emulate the IsNumeric function for a date instead.

   

  Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged

  If IsDate(TextBox1.Text) = False Then

  TextBox1.Text = System.DateTime.Now.ToShortDateString

  MsgBox("Please input a date.", , "Date only please.")

  End If

  End Sub

  Public Function IsDate(ByVal myDate As String) As Boolean

  Dim testDate As System.DateTime

  Try

  testDate = CDate(myDate)

  Return True

  Catch ex As Exception

  Return False

  End Try

  End Function

   

  Regards,

  S_DS

   

   

  
  
  

• Samer Selo

  Hi, if you mean to just show the date, then try this:
  
  TextBox1.Text = System.DateTime.Now.ToString("dd/MM/yyyy")
  
  

• Webbert

  Oh come on - that is totally unusable.

  Doing the check in the textchanged event prevents you from entering a date into an empty textbox as well as making it infuriating to try and change the current date to one you want - might make an amusing game though.

  What is the point of defining an IsDate function when it already exists in VB.

  Also from a usability point of view changing the incorrect date to the current date is not helpful to the user as they cannot then see what they did wrong. Much better to just highlight the entered text and let them amend it.

  Try this instead:

  Private Sub TextBox1_Validating(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles TextBox1.Validating
  If IsDate(TextBox1.Text) Then
  TextBox1.Text = CDate(TextBox1.Text).ToShortDateString
  Else
  TextBox1.SelectAll()
  MessageBox.Show("Please enter a valid date")
  e.Cancel = True
  End If
  End Sub

  This will check the entry in the textbox whenever you attempt to move focus away from the textbox. It has the side effect of preventing the form from closing if you haven't entered a valid date but you can get round this (almost!) by putting e.Cancel in the FormClosing event.

  
  
• Date. IsDate instead of IsNumeric .