Updating ListBoxes and RichTextBoxes when a variable is changed

Tristan Cartledge

Hi everyone,

Im currently trying to get a hold on programming windows forms using c# and im having trouble doing alot of the simple stuff i want to do, one of things i want to get going is updating the contents of a textbox with the values of a variable everytime the change say i change a string variable i want the change to be reflected in a textbox on another form automatically also where do i put variable to be used on multiple forms

cheers

-Tristan

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Tristan Cartledge19y ago
thank you that is great, that helps alot i also have a similar need for a listbox not sure if it is the right control to use but i want to list for example in the listbox the string parameter of objects that i have stored in an array, and that everytime a new object is found in the array the listbox is updated, so the listbox needs to update with the change to the array,

the class i have is
similar to this

class server
{
string name;
string ip;
}

cheers again

-Tristan
Jan Montano19y ago
Hi Tristan,

One approach would be defining a property.

private string myVariable;

private string MyVariable
{
set
{
myVariable = value;

if (myVariable != value)
{
Form2.textBox1.Text = myVariable;
}
}
get
{
return myVariable;
}
}

MyVariable = "new value" // this will make your textbox's value change also

You must define Form2.textBox1 as public so that you'll be able to access it from another form.