• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 203
  • Last Modified:

Easy Question (I Think) regarding accessing object properties

Hi All,

I have a button created existing on a form

I can access the button using the following...

form.button.name = "name"
form.button.text = "text"

and so on.

What I would like to do is give the button a name...lets say btnExample so now the button is called btnExample.  I can access the button by:
form.btnExample.text = text

But what if I wanted to store btnExample in a variable lets say

Dim  buttonName = "btnExample"

and then access the contents of that buttons text property using the name of the button stored in the variable...How would one do that.

For example:  I would like to be able to type form.(variableName).text = "text"

Tried finding example of this, etc but not having any luck.

Thanks
0
mike_allain
Asked:
mike_allain
  • 2
  • 2
1 Solution
 
ZeonFlashCommented:
You can try a couple of things.  First, implementing a control array (explained here:  http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dv_vstechart/html/vbtchcreatingcontrolarraysinvisualbasicnetvisualcnet.asp ).  Or you can do a simple loop through all the controls on your form to find the right one.  Obviously, if you don't have a lot of controls, the second option is the simpler one.  Here's an example:

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim btnName As String
        Dim controlButton As Control

        btnName = "btnExample"

        If GetControlFromName(controlButton, btnName) Then controlButton.Text = "text"
    End Sub

    Private Function GetControlFromName(ByRef control As Control, ByVal strControlName As String) As Boolean
        For Each ctrl As Control In Me.Controls
            If UCase(ctrl.Name) = UCase(strControlName) Then
                control = ctrl
                Return True
            End If
        Next
        Return False
    End Function
0
 
Mike TomlinsonMiddle School Assistant TeacherCommented:
What version VB.Net?
0
 
mike_allainAuthor Commented:
Visual studio 2005 ver 8

I am currently using the loop method.  I was hoping that there might be ome way I could use a varaible instead as I have many text boxes on my form.



0
 
Mike TomlinsonMiddle School Assistant TeacherCommented:
With VB.Net 2005 there is a new Find() function in the Controls collection:
http://msdn2.microsoft.com/en-us/library/system.windows.forms.control.controlcollection.find.aspx

So something like...

        Dim ctl() As System.Windows.Forms.Control
        ctl = Me.Controls.Find("btnExample", True)

        If ctl.Length > 0 Then
            If TypeOf ctl(0) Is Button Then
                Dim btn As Button = CType(ctl(0), Button)
                btn.Text = "You found me..."
            End If
        End If


0
 
mike_allainAuthor Commented:
Thank you very much, this is exactly what I have been looking for. Much better than the looping that I have been doing.
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

  • 2
  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now