loop through all textboxes?

[litton1]

hi all, i am trying to loop through all textboxes on form with

foreach (Control thisForm in this.Controls)
{
    string test = thisForm.ToString();
              
    if(test == "System.Windows.Forms.TextBox")
    {
         MessageBox.Show(test);
    }
}

where am i going wrong?
Thx

Age is a consequence of experience

 

[majkinetor]

foreach (Object c in this.Controls)
if (c is TextBox)
MessageBox.Show( (TextBox)c.Text );

 

[litton1]

Excellent thx, worked like a treat.

Age is a consequence of experience

 

[litton1]

Ok sorry but although that worked, I couldn’t actually disable a text box but did get closer by using the is keyword as you showed. Please could someone show me how to not enable all textboxes on the form. Probably should have said this in the first place. Although my code goes into the if and reaches the line "thisForm.Enabled = false;" No texboxes are disabled?
Thx

foreach (Control thisFormObject in this.Controls)
{
     string test = thisForm.ToString();

    if (thisForm is  TextBox)//"System.Windows.Forms.TextBox")
    {
       thisForm.Enabled = false;
       //MessageBox.Show(test);
    }
 }

Age is a consequence of experience

 

[litton1]

sorry the code was this

foreach (Control thisForm in this.Controls)
{    
    if (thisForm is TextBox)//"System.Windows.Forms.TextBox")
    {
        thisForm.Enabled = false;
    }
}

Age is a consequence of experience

 

[earthandfire]

I'm not sure of the exact c# syntax but in vb

ctype(thisform, textbox).enabled = false, so I guess something like

(textbox)thisform.enabled = false

but you will need to check that.

Basically, you need to cast the variable thisform to a tectbox before using it.


Hope this helps.

 

[JurkMonkey]

((TextBox)thisform).Enabled = false;

 

[cappmgr]

just in case you have controls containing controls
public void DisableTextBoxes(Control ctrl)
{
foreach (Control childCtrl in ctrl.Controls)
{
if (childCtrl is TextBox)
{
((TextBox)childCtrl).Enabled = false;
}
DisableTextBoxes(childCtrl);
}
}
Marty

 

[earthandfire]

JurkMonkey, I wasn't that far out then . I knew it was something like that.

 

[JurkMonkey]

Close!

 

[litton1]

thx guys! sweet

Age is a consequence of experience

 

[dEVooXiAm]

So did really

thisForm.Enabled = false

didn't work, but

((TextBox)thisForm).Enabled = false

worked ??
I thought that overriding takes care of this, i.e. calling TextBox's Enabled property for the Controls of type TextBox. Please correct me if I am wrong..

------------------
When you do it, do it right.

 

[majkinetor]

You are wrong. Witch "enabled" should be called if I say

thisForm.Enabled = false;

? From Control, contorls child class, its child class....

so you have to say something about the type, since I guess there is no default method to desable control (like results do show)


NOTE TO litton1
Your thisForm name is really a bad choice for this variable name...

 

[litton1]

Thanks for the replies, yes on reflection this is a bad name. Thanks for pointing that out and I will amend.

Age is a consequence of experience