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Clearing all textboxes

Hi everybody,

I have a lot of textboxes on my form and a "Clear" button. Is there a
way with a for loop or something to clear the textboxes, instead of
writing textboxName.cle ar?

Thanks a lot

Aug 17 '05 #1
2 1852
Savvas wrote:
I have a lot of textboxes on my form and a "Clear" button. Is there a
way with a for loop or something to clear the textboxes, instead of
writing textboxName.cle ar?


You could loop through the form's Controls property, find the text boxes
and clear them, like this:

foreach (Control control in Controls) {
TextBox textBox = control as TextBox;
if (textBox != null)
textBox.Clear() ;
}

The problem is that maybe your form contains a hierarchy of controls, as
opposed to a flat structure, if for example you have panels or group
boxes on the form. In that case, you'd have to iterate into the
hierarchy to be able to find all the text boxes you want. From the top
of my head, maybe like this:

void ClearTextBoxes( Control control) {
foreach (Control childControl in control.Control s) {
TextBox textBox = childControl as TextBox;
if (textBox != null)
textBox.Clear() ;
if (childControl.C ontrols.Count > 0)
ClearTextBoxes( childControl);
}
}

You can call this method and pass in the form (or 'this', if you're
already in the form) and it should iterate recursively into the
hierarchy, find all text boxes and clear them.

Mind you, this will not be as performant as clearing the text boxes by
distinct statements, but I think on a reasonably sized form it shouldn't
do any harm.

Hope this helps!

Oliver Sturm
--
omnibus ex nihilo ducendis sufficit unum
Spaces inserted to prevent google email destruction:
MSN oliver @ sturmnet.org Jabber sturm @ amessage.de
ICQ 27142619 http://www.sturmnet.org/blog
Aug 17 '05 #2
Thanks a lot Oliver

I will try that code out, however, i found this which works fine

For Each MeuControl In Me.GroupBox1.Co ntrols
If TypeOf MeuControl Is TextBox Then
MeuControl.Text = ""
End If
Next MeuControl

Aug 17 '05 #3

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