[RESOLVED] Check textbox contains capital letter

I would like to know how to check the string input by the user?If the user input capclock letter, the the messagebox pop up when i click the command button. I would like to pop up the with mesagebox when the user input the caplock letter "B B" or "ABCDEFGHIJKLMNOPQRSTUVWXYZ"

vb Code:

Dim ValidStr As String
 
Private Sub Form_Load()
    ValidStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
End Sub
 
Private Sub Text1_KeyPress( _
    KeyAscii As Integer _
)
    If InStr(ValidStr, ChrW(KeyAscii)) > 0 Then
        MsgBox "Hello"
    End If
End Sub

Thank you. it work when user input. If prefer to check the code when use press the commad button. But how to check code?

Code:

---


Private Sub Command1_Click()

ValidStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
    If InStr(ValidStr, ChrW(KeyAscii)) > 0 Then
        MsgBox "Hello"
    End If
End Sub

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Checking if a string contains capitals is easy...

Code:

---

If Text1.Text <> LCase$(Text1.Text) Then 'the textbox contains capitals

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Depending on the situation it might be better to control the input to the Textbox so that it's always a particular case.

Then check validstr against textbox.etxt instead of chrw(keyascii)

vb Code:

Dim ValidStr As String
 
Private Sub Form_Load()
    ValidStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
End Sub
 
Private Sub Command1_Click()
    Dim i As Integer
    Dim hasCaps As Boolean
    
    For i = 1 To Len(Text1.Text)
        If InStr(ValidStr, Mid$(Text1.Text, i, 1)) > 0 Then
            hasCaps = True
            Exit For
        End If
    Next
    
    If hasCaps Then
        MsgBox "Textbox contains capital letters."
    End If
End Sub

You can leave the

Code:

---

Private Sub Form_Load()
    ValidStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
End Sub

---

in the Form_Load and use those changes in your Comand1_Click:

Code:

---

Private Sub Command1_Click()
Dim i As Integer
Dim Check As String
For i = 1 To Len (ValidStr)
  Check = Mid (ValidStr, i,1)
  If InStr(ValidStr, Check) > 0 Then
      MsgBox "Hello"
      Exit Sub
  End If
Next i
End Sub

---

Code:

---

Private Sub Command1_Click()
    If Text1.Text = UCase(Text1.Text) And Text1.Text Like "*[A-Z]*" Then
        MsgBox "All letters are Uppercase"
    ElseIf Text1.Text = LCase(Text1.Text) And Text1.Text Like "*[a-z]*" Then
        MsgBox "All letters are Lowercase"
    ElseIf Text1.Text Like "*[A-Za-z]*" Then
        MsgBox "Letters are mixed Uppercase and Lowercase"
    Else
        MsgBox "No letter exist"
    End If
End Sub

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Whats wrong with my one liner? It accounts for the full set of capitals which would include "ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏ&#2 08;ÑÒÓÔÕÖÙÚÛÜÝ" in the UK.

Quote:

---

Originally Posted by Milk

Whats wrong with my one liner? It accounts for the full set of capitals which would include "ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖÙÚÛÜÝ" in the UK.

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That is pretty good and should be the first choice for matrik02 :thumb:

@matrik02,
If someone has helped you here or you find a solution yourself then you should say something instead of quietly mark the thread as resolved and go away.
You still have many other questions you want to have answers.

Thank you to all of you.

I used thread number #4 and #2