replace text with a textbox input using variable - powershell

Question

In my script I have a textbox- the user inserts text in it and than I want to change the text in a file (which the script creates earlier) to what the user inserted in the textbox.
The problem: it does deletes the part I wanted to be changed in the file- but it doesn`t write the text of the user instead. I also tried to locate the variable in the if loop- and it did changed the text like i wanted, but when I run the script again it wrote the old text in the disabled textbox.
my script is kinda long so I wont post all of it, but here are the importent parts. Thanks for the help!
#This creates a checkbox called dsp.z
$objDspCheckbox = New-Object System.Windows.Forms.Checkbox
$objDspCheckbox.Location = New-Object System.Drawing.Size(20,40)
$objDspCheckbox.Size = New-Object System.Drawing.Size(150,20)
$objDspCheckbox.Text = "dsp.z"
$objDspCheckbox.TabIndex = 0
$objForm.Controls.Add($objDspCheckbox)
#This creates the TextBox1 and put it on disable
$objTextBox1 = New-Object System.Windows.Forms.TextBox
$objTextBox1.Location = New-Object System.Drawing.Size(450,40)
$objTextBox1.Size = New-Object System.Drawing.Size(140,150)
$objTextBox1.TabIndex = 3
$objTextBox1.text = $text1
$objTextBox1.Enabled = $false
$objForm.Controls.Add($objTextBox1)
#This creates a checkbox for textbox1
$objDsp2Checkbox = New-Object System.Windows.Forms.Checkbox
$objDsp2Checkbox.Location = New-Object System.Drawing.Size(430,40)
$objDsp2Checkbox.Size = New-Object System.Drawing.Size(150,20)
$objDsp2Checkbox.TabIndex = 0
$objForm.Controls.Add($objDsp2Checkbox)
#Enables the textbox when user check the box:
#textbox1
$objDsp2Checkbox_OnClick = {
if ($objDsp2Checkbox.Checked -eq $true)
{
$objTextBox1.Enabled = $true
}
elseif ($objDsp2Checkbox.Checked -eq $false)
{
$objTextBox1.Enabled = $false
}
}
$objDsp2Checkbox.Add_Click($objDsp2Checkbox_OnClick)
#variables
$text1=$objTextBox1.Text
#This creates the ok and cancle buttons:
#ok Button
$OKButton = New-Object System.Windows.Forms.Button
$OKButton.Location = New-Object System.Drawing.Size(220,155)
$OKButton.Size = New-Object System.Drawing.Size(75,23)
$OKButton.Text = "OK"
$OKButton.Add_Click(
{
if (($objDspCheckbox.Checked -eq $true) -and ($objDsp2Checkbox.Checked -eq $true))
{
New-Item $path -itemtype file -name Dsp.json -value "old" ;((Get-Content "c:\users\$env:USERNAME\documents\Json\dsp.json") -replace 'old', $text1 | out-file "c:\users\$env:USERNAME\documents\Json\dsp.json") ;$objForm.close()
}

Answer 1

Try to Change This Line (specifly the $text1) to $objTextBox1.Text :
New-Item $path -itemtype file -name Dsp.json -value "old" ;
((Get-Content "c:\users\$env:USERNAME\documents\Json\dsp.json") -replace 'old', $text1 |
Out-file "c:\users\$env:USERNAME\documents\Json\dsp.json") ;$objForm.close()
To:
New-Item $path -itemtype file -name Dsp.json -value "old" ;
((Get-Content "c:\users\$env:USERNAME\documents\Json\dsp.json") -replace 'old', $objTextBox1.Text |
Out-file "c:\users\$env:USERNAME\documents\Json\dsp.json") ;$objForm.close()
I'm not sure if it's the case but if you just need to save the textbox text to file there's an easier approach :
$objTextBox1.Text | Out-file "c:\users\$env:USERNAME\documents\Json\dsp.json")