Richtextbox not loading

[Shinobi]

c#.net
I have 2 forms. richtextbox1 is placed in form1.
listbox1 is used in form2. selectedindex of listbox1 is passing path to form1.
by using this path i am trying to load richtextbox1 using this code

richtextbox1.loadFile(filepath);

But i can't load richtextbox without closing form2.

I tried this meathod.

form2 ob2=new form2();
ob2.showdialog();
string filepath=ob2.label1.text;
richtextbox1.loadfile(filepath);

In selectedIndex of listbox1 in form2

//geting filepath
label.text=filepath;
this.close();


I want to load richtextbox without closing form2.

Is there is any meathod to load Richtextbox in this way?

Help me....

[nukefusion]

There's a number of ways to do this. One simple method could be to pass a reference of your RichTextBox to form 2.

Maybe you could add a property to form 2 called "TargetTextBox" or something, like so:

        private RichTextBox _textbox;
 
        public RichTextBox TargetTextBox
        {
            get { return _textbox; }
            set { _textbox = value;  }
        }
 

Then in form 1 you can set this reference before displaying form 2, like so:

form2 ob2=new form2();
obj2.TargetTextBox = richTextBox1;
ob2.showdialog();

Then in selected index event in form2 you can have full access to the textbox:

// Get file path somehow
TargetTextBox.LoadFile(filepath);

[MrMancunian]

Hi,

The problem is in ob2.showdialog(); When you use this, the code will not continue to execute unless the dialog is closed. Try to use ob2.show();

Steven

[nukefusion]

Hi,

The problem is in ob2.showdialog(); When you use this, the code will not continue to execute unless the dialog is closed. Try to use ob2.show();

Steven

That is true, but using the code sample Shinobi provided, you would still need a way to reference the RichTextBox in form 1 so that you could load it when the selected index event of the listbox on form 2 fires. As is, if the ShowDialog() command was changed to Show(), form2 would open, but the richtextbox would never be loaded.