Basically the code below deletes the selected text from a textbox, although you cannot undo it. Any help on making it undo?
TextBox1.SelectedText = ""
Try a variation of the following...
Public Class Form1
Dim selText as String
Private Sub Button1_Click(sender as object, e as EventArgs) Handles Button1.Click
selText = TextBox1.SelectedText
TextBox1.SelectedTexxt = ""
End Sub
Private Sub Button2_Click(sender as object, e as EventArgs) Handles Button2.Click
TextBox1.AppendText(selText)
End Sub
End Class
Found an answer. Just use this code below
SendKeys.Send("{BS}")
Related
I created a mouse position program that can be used to save your mouse position {X, Y}
I realised that this is not going to be effective unless I implement a method where for example pressing "5" will save that position
The only way i can save the position is by pressing the button, although that does work, there is no way to save the position without clicking the btn.
Can anyone help? I would be very grateful
Public Class Form1
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
End Sub
Private Sub XYbtn_Click(sender As Object, e As EventArgs) Handles XYbtn.Click
Dim mousep As Point = MousePosition
MouseXY.Text = mousep.ToString()
TimeCo.Start()
End Sub
Private Sub clearBtn_Click(sender As Object, e As EventArgs) Handles clearBtn.Click
LabelX.Text = "X"
LabelY.Text = "Y"
X2.Text = "X2"
Y2.Text = "Y2"
End Sub
Private Sub TimeCo_Tick(sender As Object, e As EventArgs) Handles TimeCo.Tick
Dim mousep As Point = MousePosition
MouseXY.Text = mousep.ToString()
End Sub
Private Sub saveBtn_Click(sender As Object, e As EventArgs) Handles saveBtn.Click
LabelX.Text = Cursor.Position.X
LabelY.Text = Cursor.Position.Y
End Sub
Private Sub save2_Click(sender As Object, e As EventArgs) Handles save2.Click
X2.Text = Cursor.Position.X
Y2.Text = Cursor.Position.Y
End Sub
Private Sub startBtn_Click(sender As Object, e As EventArgs) Handles startBtn.Click
End Sub
End Class
If your form will have focus, you can set the AcceptButton property of the FORM to saveBtn. This will make it so that when you press ENTER on the keyboard while your form has focus then that button will be pressed.
If you'd rather use the key approach then set the KeyPreview property of the Form to True and handle the KeyPress event:
Private Sub Form1_KeyPress(sender As Object, e As KeyPressEventArgs) Handles MyBase.KeyPress
If e.KeyChar = "5" Then
Console.WriteLine("5")
End If
End Sub
I have multiple panels on the same form and I want Passing a value between 2 panels
I want to enter Username in the first panel and Show as Label in next panel
please not in between 2 Form but 2 Panels.
Public Class Form1
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles Me.Load
Guna.UI.Lib.GraphicsHelper.ShadowForm(Me)
End Sub
Private Sub GunaButton1_Click(sender As Object, e As EventArgs) Handles GunaButton1.Click
pnLogin.BringToFront()
GunaTransition1.Hide(pnLogin)
End Sub
Private Sub GunaButton2_Click(sender As Object, e As EventArgs)
End Sub
Private Sub GunaGradientButton2_Click(sender As Object, e As EventArgs)
End Sub
Private Sub GunaTextBox1_Click(sender As Object, e As EventArgs) Handles GunaTextBox1.Click
End Sub
End Class
If all the controls are in the same Form, then the container they are within is irrelevant.
The code would look something like this:
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Label1.Text = TextBox1.Text
End Sub
You need to change the control names to what you have on your form for the Button, TextBox and Label.
You can simply declare the variable in form class scope and use it! can you explain more details?
Update:
Private Sub Button_Click(sender As Object, e As EventArgs) Handles Button.Click
Lable.text = TextBox.text
EndSub
So, I have a small test for school where I need to DISABLE three radio buttons which are in a panel in the least amount of possible code WHILE the contents of two text boxes are empty. As soon as both textboxes are filled, I enable the panel.
The below solution obviously works with one single text box, but what happens with two?
I know I can override each button KeyPress and check both text boxes at the same time. But I wanted to go fancy. The problem is I think there is no way I can solve this problem like this.
Or is it?
Public Class Form1
Public Sub vacios(sender As Object, e As System.Windows.Forms.KeyPressEventArgs)
Panel1.Enabled = (sender.Text <> "")
End Sub
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
AddHandler txtNombre.KeyPress, AddressOf vacios
AddHandler txtApellido.KeyPress, AddressOf vacios
End Sub
End Class
Note - I know I can do this But I wanted to be fancy.
Public Class Form1
Private Sub txtNombre_TextChanged(sender As Object, e As EventArgs) Handles txtNombre.TextChanged
Panel1.Enabled = (txtNombre.Text <> "" And txtApellido.Text <> "")
End Sub
Private Sub txtApellido_TextChanged(sender As Object, e As EventArgs) Handles txtApellido.TextChanged
Panel1.Enabled = (txtNombre.Text <> "" And txtApellido.Text <> "")
End Sub
End Class
in VB you can have multiple handles for the same sub just by adding "Handles Object1.Event,Object2.Event ..." at the end.
here an example of what i would do in this case
Public Class Form1
Private Sub panel1TextBoxes_TextChanged(sender As Object, e As EventArgs) Handles txtApellido.TextChanged,txtNombre.TextChanged
Panel1.Enabled = (txtNombre.Text <> String.Empty And txtApellido.Text <> String.Empty)
End Sub
End Class
I'm trying to make a little prank program where a form keeps opening until it hits a certain number like 50 or something, I've tried this:
Public Class Form2
Private Sub Form2_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Timer1.Start()
End Sub
Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
Show()
End Sub
End Class
But that doesn't work, anyone willing to help? Thanks
Ditto what litelite said. If you want to show a new instance of the form, Show() won't cut it.
In fact, once you close that form, the timer you're using will be lost. So you'll need to handle the Form.Closing event as well. Since we're just having fun here, I'd suggest that you make that work like cutting off the head of a Hydra, two more replace it.
Try something like this:
Public Class Form2
Private Sub Form2_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Timer1.Start()
End Sub
Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
Dim _newForm as Form2 = new Form2()
_newForm.Show()
End Sub
Private Sub Me_Closing(sender As Object, e As EventArgs) Handles Form2.Closing
Dim _newForm as Form2 = new Form2()
_newForm.Show()
Dim _newForm2 as Form2 = new Form2()
_newForm2.Show()
End Sub
End Class
I'm very frustrated trying to get my code to work.
I'm trying to have a selected item in a listbox removed also in the textbox.
Getting ready to remove text;
Removed the text;
But it's still in the textbox.
Here is my code
Public Class Form1
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
ListBox1.Items.Add(TextBox1.Text)
TextBox2.Text += TextBox1.Text & vbNewLine
End Sub
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
ListBox1.Items.Remove(ListBox1.SelectedItem)
'
'//HOW TO REMOVE THE SELECTED TEXT IN THE LISTBOX ALSO REMOVED IN THE TEXTBOX2??
'
'
End Sub
Private Sub Form1_FormClosing(sender As Object, e As FormClosingEventArgs) Handles Me.FormClosing
Dim filenames As String = "C:\log\log.txt"
My.Computer.FileSystem.WriteAllText(filenames, TextBox2.Text, False)
End Sub
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Dim filenames As String = "C:\log\log.txt"
If My.Computer.FileSystem.FileExists(filenames) Then
TextBox2.Text = My.Computer.FileSystem.ReadAllText(filenames)
Dim items()
items = TextBox2.Lines()
For Each item In items
ListBox1.Items.Add(item)
Next
End If
End Sub
Private Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3.Click
Clipboard.SetText(ListBox1.SelectedItem)
End Sub
End Class
The worst part is that every time I try to look it up online, there are no errors until I click the button that says 'Value Cannot Be Null'
It happened every single time.
Please, before you mash the -1 button, at least tell me why. I'm new to this.
This should work for you
Public Class Form1
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
TextBox1.Text = TextBox1.Text.Replace(ListBox1.Items(ListBox1.SelectedIndex), Nothing)
ListBox1.Items.RemoveAt(ListBox1.SelectedIndex)
End Sub
End Class