Datetimepicker validating

In order to create nice, user-friendly forms, good client-side validation is also usually involved.

The problem I've found with this combination is that the datepicker doesn't generally trigger validation when you change the date.

Editing Control Data Grid View Get Return data Grid View Control End Get Set(By Val value As Data Grid View) data Grid View Control = value End Set End Property Public Property Editing Control Value Changed() As Boolean _ Implements IData Grid View Editing Control. Run(New Form1()) End Sub Public Sub New() Grid View1.

Reposition Editing Control On Value Change Get Return False End Get End Property Public Property Editing Control Data Grid View() As Data Grid View _ Implements IData Grid View Editing Control. On Value Changed(eventargs) End Sub End Class Public Class Form1 Inherits Form Private data Grid View1 As New Data Grid View() _ Public Shared Sub Main() Application.

To String) End Sub End Class 実行結果は以下のようになりました。 Leave:2008/10/02 Validating:2008/10/02 Validated:2008/10/02 Value Changed:2008/10/01 これは年月日のいずれでも1桁入力し、Tabキーで移動した場合に発生します。 回避方法はLeaveイベントでMe. Active Controlを記述します。 Public Class Form1 Private Sub Date Time Picker1_Leave(By Val sender As Object, By Val e As System.

To String) End Sub End Class Public Class Custom Control1 Inherits System.

datetimepicker validating-81

To String) End Sub Private Sub Date Time Picker1_Value Changed(By Val sender As Object, By Val e As System.

If these column types do not meet your data-entry needs, however, you can create your own column types with cells that host controls of your choosing. Editing Control Wants Input Key ' Let the Date Time Picker handle the keys listed.

To do this, you must define classes that derive from Data Grid View Column and Data Grid View Cell. To Short Date String() End Function Public Sub Apply Cell Style To Editing Control(By Val data Grid View Cell Style As _ Data Grid View Cell Style) _ Implements IData Grid View Editing Control.

Below are my solutions to handling the issue with the datepicker using these two validation libraries: See working example See working example If you would like to see solutions for other validation libraries let me know, I'll see what I can do. If you have suggestions, definitely let me know in the comments or on twitter.

When setting options via HTML attributes, remember to enable the validator by setting data-fv-date="true".

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