labwindows cvi textbox

[Nicla-]

I worked with textbox and I got an erros such as: the control passed is not a textbox, but I passed the correct control!! How is it possible???

[RobertoBozzolo]

It's not easy to try guessing what's happening with so few elements.

Can you give us some more details: which CVI version are you using, which OS, an abstract of your code, a sample panel...?

Message Edited by Roberto Bozzolo on 02-06-2009 09:34 PM

[ebalci]

Hi,

Just a guess: 

If your textbox is inside a tab page then you should call GetPanelHandleFromTabPage first to get a handle and use that handle for SetCtrlVal and other similar functions as the first parameter.

Hope this solves your problem.

Regards, 

[Nicla-]

I have the version of the program 7.1. I've created a panel, and I took from a list the string of char that I want to put in the text box that is in another panel. I took the string with GetLabelFromIndex and I have the string in a variable "patname". So now I have to put this string of char in a textbox, but i can't use setctrlvalue becouse it doesn't work with char!! How can I put the string in the text box??? I tried with: InsertTextBoxLine but there is an error : "the control passed is not a text box". But the control that i passed is a textbox!! How can it be possible?? Thank you for your answer! kisses

[ebalci · Accepted solution]

Hi Nicla,

SetCtrlVal function actually works with character strings. You can write:

char path[256];
 
GetLabelFromIndex (panel1, PANEL1_LIST, index, path);
SetCtrlVal (panel2, PANEL2_TEXTBOX, path);

Besides, I doubt that you are confusing a 'string control' with a 'textbox control'. A string control is single line box in which you can type/display a pathname or any other string.

A textbox can be multiline with scroll bars, etc.

You cannot be blamed for this. Because the term "textbox" is also used as a name for the general single line version (which NI calls a string control) by the computer users.

Anyway, you should be able to use SetCtrlVal for both string and textbox type of controls.

Hope this helps, 

[Nicla-]

thank you!!!!!

[LesK]

This is a very simple question, but I have not been able to learn the answer. What is the max # of character a textbox can hold? When this # is exceeded what is the error generated?