Changing the properties of some controls on a form

[Dan Soendergaard]

I have this code:

for (int i = 0; i < this.Controls.C ount; i++)
{
if (this.Controls[i] is ValidationTextB ox)
{
// Change the property of the control here.
}
}

ValidationTextB ox is a control which derives from TextBox. It contain
some custom properties, among them: ValidValueColor .

As you see, I'm trying to change a property of all instances of
ValidationTextB ox in my form. When I tried to do
this.Controls[i].ValidValueColo r, I found out that the property wasn't
available. How can I access the custom properties from the
ValidationTextB ox?

Thanks in advance!

Dan

[VJ]

this.Controls[i] <--- returns type Control.. so you try something like
((ValidationTex tBox)this.Contr ols[i]).ValidValueCol or, that will work. To
avoid expection include type of check to ensuer that it is correct tpye.. if
(this.Control[i].GetType() == typeof(Validati onTextBox) )

Vijay

"Dan Soendergaard" <da*****@gmail. comwrote in message
news:11******** **************@ 30g2000cwc.goog legroups.com...

>I have this code:

for (int i = 0; i < this.Controls.C ount; i++)
{
if (this.Controls[i] is ValidationTextB ox)
{
// Change the property of the control here.
}
}

ValidationTextB ox is a control which derives from TextBox. It contain
some custom properties, among them: ValidValueColor .

As you see, I'm trying to change a property of all instances of
ValidationTextB ox in my form. When I tried to do
this.Controls[i].ValidValueColo r, I found out that the property wasn't
available. How can I access the custom properties from the
ValidationTextB ox?

Thanks in advance!

Dan

[Bruce Wood]

On Mar 10, 4:33 am, "Dan Soendergaard" <dan1...@gmail. comwrote:

I have this code:

for (int i = 0; i < this.Controls.C ount; i++)
{
if (this.Controls[i] is ValidationTextB ox)
{
// Change the property of the control here.
}
}

ValidationTextB ox is a control which derives from TextBox. It contain
some custom properties, among them: ValidValueColor .

As you see, I'm trying to change a property of all instances of
ValidationTextB ox in my form. When I tried to do
this.Controls[i].ValidValueColo r, I found out that the property wasn't
available. How can I access the custom properties from the
ValidationTextB ox?

Try this:

foreach (Control c in this.Controls)
{
ValidationTextB ox vbox = c as ValidationTextB ox
if (vbox != null)
{
// Change the property of the "vbox" control
here.
}
}

[Dan Soendergaard]

On Mar 10, 9:27 pm, "Bruce Wood" <brucew...@cana da.comwrote:

On Mar 10, 4:33 am, "Dan Soendergaard" <dan1...@gmail. comwrote:

I have this code:

for (int i = 0; i < this.Controls.C ount; i++)
{
if (this.Controls[i] is ValidationTextB ox)
{
// Change the property of the control here.
}
}

ValidationTextB ox is a control which derives from TextBox. It contain
some custom properties, among them: ValidValueColor .

As you see, I'm trying to change a property of all instances of
ValidationTextB ox in my form. When I tried to do
this.Controls[i].ValidValueColo r, I found out that the property wasn't
available. How can I access the custom properties from the
ValidationTextB ox?

Try this:

foreach (Control c in this.Controls)
{
ValidationTextB ox vbox = c as ValidationTextB ox
if (vbox != null)
{
// Change the property of the "vbox" control
here.
}
}

Thanks, worked just fine!