DateTimePicker_Change

PowerShell Help
1

I’ve been pulling my hair out for like 3 hours.

 

I have to detect when the date was changed in a PowerShell form.

I’ve tried tons of thing, but nothing works.

 

Someone posted on here

 

$datetimepicker1_ValueChanged = {

$textbox1.Text = $dateTimePicker1.Value.ToString("yyyy/MM/dd")
$datetimepicker2.MinDate = $datetimepicker1.Value.AddDays(1)

}

 

$datetimepicker2_ValueChanged = {

$textbox2.Text = $datetimepicker2.Value.ToString("yyyy/MM/dd")

}

This doesn’t seem to work either.

 

Thanks

2

There are many ways to build forms in Powershell and depending on the example you started with the answer is going to vary. GUI interfaces have objects, such as a datetime picker, button, label, etc. and each control object has events. The datetime picker object needs to be named $datetimepicker2 and then you are triggering on event _ValueChanged. Where that function is defined is important as well, so you need to post the form with the PRE tags so that we can assist you.

3

I use the following to check the state change of a CheckBox, maybe this will work for you?

$ChkBox.Add_CheckStateChanged({your code goes here})

Something like ??

$datetimepicker2.Add_CheckStateChanged({your code goes here})

4

Thanks for replying,

This is what I get when I try that

Method invocation failed because [System.Windows.Forms.DateTimePicker] does
not contain a method named 'Add_CheckStateChanged'.

I’m using a Winforms I think.

Here is my code. CodePile | Easily Share Piles of Code

I’m also trying to get the datetimepicker to display nothing on startup, but that doesn’t work either.

Thanks

5

This basic example works:

Add-Type -AssemblyName System.Windows.Forms
Add-Type -AssemblyName System.Drawing

$form = New-Object Windows.Forms.Form -Property @{
    StartPosition = [Windows.Forms.FormStartPosition]::CenterScreen
    Size          = New-Object Drawing.Size 500, 500
    Text          = 'Select a Date'
    Topmost       = $true
}

$DatePicker = New-Object System.Windows.Forms.DateTimePicker  
 #$DatePicker.Format = [windows.forms.datetimepickerFormat]::custom
 #$DatePicker.CustomFormat = “MM-dd-yyyy”
$form.Controls.Add($DatePicker)  


$OKButton = New-Object Windows.Forms.Button -Property @{
    Location     = New-Object Drawing.Point 200, 400
    Size         = New-Object Drawing.Size 100, 23
    Text         = 'OK'
    DialogResult = [Windows.Forms.DialogResult]::OK
}
$form.AcceptButton = $OKButton
$form.Controls.Add($OKButton)

$CancelButton = New-Object Windows.Forms.Button -Property @{
    Location     = New-Object Drawing.Point 300, 400
    Size         = New-Object Drawing.Size 100, 23
    Text         = 'Cancel'
    DialogResult = [Windows.Forms.DialogResult]::Cancel
}
$form.CancelButton = $CancelButton
$form.Controls.Add($CancelButton)

$DatePicker.Add_ValueChanged({
    $OKButton.Text = 'Test'
    $OkButton.BackColor = 'Red'
})

$result = $form.ShowDialog()

if ($result -eq [Windows.Forms.DialogResult]::OK) {
    $date = $calendar.SelectionStart
    Write-Host "Date selected: $($date.ToShortDateString())"
}