determin if a object is a textbox

[moondaddy]

in a wpf c# windows app, how do I determin if a control is a texbox?

void Test(object sender)
{
if(sender==Texb ox)
{
// do something.
}
}

Thanks.
--
mo*******@noema il.noemail

[John Timney \(MVP\)]

Surely its more important that the textbox has a value, why dont you just
check that instead? The easiest way would be to name the objects
accordingly and check the object name at submission of some form, but you
can probably check the TypeOf control using code along these lines (not test
mind you!!).

Dim myControl As Control
Dim textBox As TextBox
For Each myControl In Controls
If TypeOf myControl Is TextBox Then
textBox = CType(myControl , TextBox)
textBox.Text = "Hello"
End If
Next

Regards

John Timney (MVP)
http://www.johntimney.com
http://www.johntimney.com/blog
"moondaddy" <mo*******@noem ail.noemailwrot e in message
news:e0******** ********@TK2MSF TNGP06.phx.gbl. ..

in a wpf c# windows app, how do I determin if a control is a texbox?

void Test(object sender)
{
if(sender==Texb ox)
{
// do something.
}
}

Thanks.
--
mo*******@noema il.noemail

[Scott M.]

void Test(object sender)
{
if(sender.getTy pe.name == "Texbox")
{
// do something.
}
}

"moondaddy" <mo*******@noem ail.noemailwrot e in message
news:e0******** ********@TK2MSF TNGP06.phx.gbl. ..

in a wpf c# windows app, how do I determin if a control is a texbox?

void Test(object sender)
{
if(sender==Texb ox)
{
// do something.
}
}

Thanks.
--
mo*******@noema il.noemail

[Scott M.]

Textboxes have properties and methods that other controls may not have and
if the OP wants to call a property that is unique to textboxes, he/she would
have to know if the sender is, in fact, a textbox before casting it to one.
"John Timney (MVP)" <x_****@timney. eclipse.co.ukwr ote in message
news:Pp******** *************@e clipse.net.uk.. .

Surely its more important that the textbox has a value, why dont you just
check that instead? The easiest way would be to name the objects
accordingly and check the object name at submission of some form, but you
can probably check the TypeOf control using code along these lines (not
test mind you!!).

Dim myControl As Control
Dim textBox As TextBox
For Each myControl In Controls
If TypeOf myControl Is TextBox Then
textBox = CType(myControl , TextBox)
textBox.Text = "Hello"
End If
Next

Regards

John Timney (MVP)
http://www.johntimney.com
http://www.johntimney.com/blog
"moondaddy" <mo*******@noem ail.noemailwrot e in message
news:e0******** ********@TK2MSF TNGP06.phx.gbl. ..

>in a wpf c# windows app, how do I determin if a control is a texbox?

void Test(object sender)
{
if(sender==Texb ox)
{
// do something.
}
}

Thanks.
--
mo*******@noema il.noemail

[John Timney \(MVP\)]

Indeed they do - good suggestion - not considered that in my reply!

Regards

John Timney (MVP)
http://www.johntimney.com
http://www.johntimney.com/blog
"Scott M." <s-***@nospam.nosp amwrote in message
news:en******** ******@TK2MSFTN GP06.phx.gbl...

Textboxes have properties and methods that other controls may not have and
if the OP wants to call a property that is unique to textboxes, he/she
would have to know if the sender is, in fact, a textbox before casting it
to one.
"John Timney (MVP)" <x_****@timney. eclipse.co.ukwr ote in message
news:Pp******** *************@e clipse.net.uk.. .

>Surely its more important that the textbox has a value, why dont you just
check that instead? The easiest way would be to name the objects
accordingly and check the object name at submission of some form, but you
can probably check the TypeOf control using code along these lines (not
test mind you!!).

Dim myControl As Control
Dim textBox As TextBox
For Each myControl In Controls
If TypeOf myControl Is TextBox Then
textBox = CType(myControl , TextBox)
textBox.Text = "Hello"
End If
Next

Regards

John Timney (MVP)
http://www.johntimney.com
http://www.johntimney.com/blog
"moondaddy" <mo*******@noem ail.noemailwrot e in message
news:e0******* *********@TK2MS FTNGP06.phx.gbl ...

>>in a wpf c# windows app, how do I determin if a control is a texbox?

void Test(object sender)
{
if(sender==Texb ox)
{
// do something.
}
}

Thanks.
--
mo*******@noema il.noemail

[moondaddy]

Great thanks guys! This is what I need and yes Scott, I do need to know
what type of control it is first and at this point I'm not concerned with
the value in the control, just it's type.

"Scott M." <s-***@nospam.nosp amwrote in message
news:%2******** ********@TK2MSF TNGP02.phx.gbl. ..

void Test(object sender)
{
if(sender.getTy pe.name == "Texbox")
{
// do something.
}
}

"moondaddy" <mo*******@noem ail.noemailwrot e in message
news:e0******** ********@TK2MSF TNGP06.phx.gbl. ..

>in a wpf c# windows app, how do I determin if a control is a texbox?

void Test(object sender)
{
if(sender==Texb ox)
{
// do something.
}
}

Thanks.
--
mo*******@noema il.noemail

[moondaddy]

I get a compile error on getType. sender (object) doesnt contain a
definitin for getttype. Any other ideas?

"Scott M." <s-***@nospam.nosp amwrote in message
news:%2******** ********@TK2MSF TNGP02.phx.gbl. ..

void Test(object sender)
{
if(sender.getTy pe.name == "Texbox")
{
// do something.
}
}

"moondaddy" <mo*******@noem ail.noemailwrot e in message
news:e0******** ********@TK2MSF TNGP06.phx.gbl. ..

>in a wpf c# windows app, how do I determin if a control is a texbox?

void Test(object sender)
{
if(sender==Texb ox)
{
// do something.
}
}

Thanks.
--
mo*******@noema il.noemail

[moondaddy]

This is it:

sender.GetType( ).Name

"moondaddy" <mo*******@noem ail.noemailwrot e in message
news:OO******** ******@TK2MSFTN GP02.phx.gbl...

>I get a compile error on getType. sender (object) doesnt contain a
definitin for getttype. Any other ideas?

"Scott M." <s-***@nospam.nosp amwrote in message
news:%2******** ********@TK2MSF TNGP02.phx.gbl. ..

>void Test(object sender)
{
if(sender.getTy pe.name == "Texbox")
{
// do something.
}
}

"moondaddy" <mo*******@noem ail.noemailwrot e in message
news:e0******* *********@TK2MS FTNGP06.phx.gbl ...

>>in a wpf c# windows app, how do I determin if a control is a texbox?

void Test(object sender)
{
if(sender==Texb ox)
{
// do something.
}
}

Thanks.
--
mo*******@noema il.noemail

[VJ]

GetType()

C-Sharp is case senstive langugae

VJ

"moondaddy" <mo*******@noem ail.noemailwrot e in message
news:OO******** ******@TK2MSFTN GP02.phx.gbl...

>I get a compile error on getType. sender (object) doesnt contain a
definitin for getttype. Any other ideas?

"Scott M." <s-***@nospam.nosp amwrote in message
news:%2******** ********@TK2MSF TNGP02.phx.gbl. ..

>void Test(object sender)
{
if(sender.getTy pe.name == "Texbox")
{
// do something.
}
}

"moondaddy" <mo*******@noem ail.noemailwrot e in message
news:e0******* *********@TK2MS FTNGP06.phx.gbl ...

>>in a wpf c# windows app, how do I determin if a control is a texbox?

void Test(object sender)
{
if(sender==Texb ox)
{
// do something.
}
}

Thanks.
--
mo*******@noema il.noemail

[Jon Skeet [C# MVP]]

Scott M. <s-***@nospam.nosp amwrote:

void Test(object sender)
{
if(sender.getTy pe.name == "Texbox")
{
// do something.
}
}

That's a really bad way of checking it - not only does it rely on
comparing with a literal string, which can easily have a typo in (as
indeed your sample does), but it's also slower than using the operators
which C# already has - "is" and "as".

You can use:

if (sender is TextBox)
{
...
}

or:

TextBox textBox = sender as TextBox;
if (textBox != null)
{
...
}

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
If replying to the group, please do not mail me too