Removeing Certain Characters From a Textbox
Removeing Certain Characters From a Textbox
I'm trying to limit what the user can enter into a textbox. The easy part is knowing if they tried to type that character, the hard part is removing that single character. Does anyone know how? e.SuppressKeyPress is really buggy and not working right.
I've tried Textbox1.text.replace("|", "") and Textbox1.text.remove(Textbox1.textlength - 1), no luck there.
I've tried Textbox1.text.replace("|", "") and Textbox1.text.remove(Textbox1.textlength - 1), no luck there.
Silly question (..but without seeing the code), did you just call
Textbox1.text.replace("|", "")
or
TextBox1.Text = Textbox1.text.replace("|", "")
? Because strings are immutable, the first one won't work as you might expect.
Textbox1.text.replace("|", "")
or
TextBox1.Text = Textbox1.text.replace("|", "")
? Because strings are immutable, the first one won't work as you might expect.
Simple really
Code:
Dim allowedChars As String = "abcdefghijklmnopqrstuvwxyz1234567890" & Chr(8) ' backspace
If allowedChars.IndexOf(e.KeyChar) = -1 Then
e.Handled = True
End If
Originally Posted by abuckau907
Silly question (..but without seeing the code), did you just call
Textbox1.text.replace("|", "")
or
TextBox1.Text = Textbox1.text.replace("|", "")
? Because strings are immutable, the first one won't work as you might expect.
Textbox1.text.replace("|", "")
or
TextBox1.Text = Textbox1.text.replace("|", "")
? Because strings are immutable, the first one won't work as you might expect.
Also, I'm using GetAsyncKeyState to see if the user presses the button.
---------- Post added at 11:26 AM ---------- Previous post was at 11:24 AM ----------
Originally Posted by DawgiiStylz
Simple really
Code:
Dim allowedChars As String = "abcdefghijklmnopqrstuvwxyz1234567890" & Chr(8) ' backspace
If allowedChars.IndexOf(e.KeyChar) = -1 Then
e.Handled = True
End If
As you say, if you can capture (event) when user inputs, you can do a nooby remove 
tb=textbox
tb.text.Remove(tb.text.length -1, 1)
tb.SelectionStart = tb.text.length
Or something along those lines.
What I do is:
I remove the LAST input char, and move the selection point to the end. (So the user won't start typing from the start)
tb=textbox
tb.text.Remove(tb.text.length -1, 1)
tb.SelectionStart = tb.text.length
Or something along those lines.
What I do is:
I remove the LAST input char, and move the selection point to the end. (So the user won't start typing from the start
) Originally Posted by Jorndel
As you say, if you can capture (event) when user inputs, you can do a nooby remove
tb=textbox
tb.text.Remove(tb.text.length -1, 1)
tb.SelectionStart = tb.text.length
Or something along those lines.
What I do is:
I remove the LAST input char, and move the selection point to the end. (So the user won't start typing from the start)
tb=textbox
tb.text.Remove(tb.text.length -1, 1)
tb.SelectionStart = tb.text.length
Or something along those lines.
What I do is:
I remove the LAST input char, and move the selection point to the end. (So the user won't start typing from the start
)
Originally Posted by PepsiXHacker
That didn't remove the text though
Forgot too do:
tb.Text = tb.Text.Remove(***)
'Else it's not assigning the new value as the content in the tb
"Also, I'm using GetAsyncKeyState to see if the user presses the button."
I assumed you were using one of the textbox_keypress_events..kind of an important detail : p
I assumed you were using one of the textbox_keypress_events..kind of an important detail : p
Originally Posted by abuckau907
"Also, I'm using GetAsyncKeyState to see if the user presses the button."
I assumed you were using one of the textbox_keypress_events..kind of an important detail : p
I assumed you were using one of the textbox_keypress_events..kind of an important detail : p
Thanks for all your help
/solved
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