richtexbox Text_Changed

Question

Hello Everyone..
I'm Newbie in C# language..

I have problem with my program,
I create a program that can print a content of richtextbos

--snip--

private void rtb_TextChanged(object sender, EventArgs e)
        {
               printbtn.PerformClick();

        }

---end snip--

I mean the program will do action, if content in richtexbox has been change to different content (word).
but it not work, the printbutton do action if i change with the same content.

what must i do ?

Thanks

ClonecMr cool · Answer

Thanks for the reply brother... I try your code but it not work.. Before it My RTB is set to readonly mode and shown my query result by npgsqlreader i use timer to make dynamic RTB and show the content auto update. so the program printing continuously if text assign is exactly the same as what it was before! but I 've found another way for my program.. once again thank you very much for replies ^_^

Vulpes · Answer

Well the RTB's TextChanged event will fire whenever your program assigns something to its Text property even if what you assign is exactly the same as what it was before! I assume you've made it readonly so the user can't enter anything manually. The only thing you can do to prevent it from printing the contents of the RTB when the text hasn't actually changed is to store the last text value in a field and then check the current text value against the field value: private string rtbText = ; private void rtb_TextChanged(object sender EventArgs e) { if (rtb.Text != rtbText) { rtbText = rtbText; printbtn.PerformClick(); } }