Timer and buttons

Question

hellow someone has given me this: private void btnPush_Click(object sender System.EventArgs e) { count++; if(count == 4) count = 1; switch(count) { case 1: txtBox.Text = a; break; case 2: txtBox.Text = b; break; case 3: txtBox.Text = c; break; } } this works but the problem is that i need to get more a of b next to each other. How can ik do this? no he just change the a into a be but i can't at an other one? thx and greetz

spgilmore · Answer

That's an UNDO. There is a single UNDO level built into the textbox. The user can invoke UNDO with CTRL-Z. You can invoke it programmatically using textBox1.Undo(); If you want more than one level you'll have to built your own UNDO stack by storing the entire textBox.Text everytime the textBox.OnChange() fires.

joy.simpson · Answer

Then just add it on to the text! If you want to replace the b with the a then just use the code for the backspace and add on the a

annie_pollie07 · Answer

txtBox.Text = txtBox.Text + b; this is to at b to the text thats allraidy theire. but what if I want to get the a again?? thx for the backspace!!!!! greetz

joy.simpson · Answer

Easy: string mystring; int N; mystring = txtBox.Text; N = mystring.Length; mystring = mystring.Substring(0 N - 1); txtBox.Text = mystring;

annie_pollie07 · Answer

oké thx a lot thats OK now But no i need to make a backspace. How do I need to do that? Do you know that perhaps??? i know if you want to delete everything that you need to di this: button1.text= ; but for 1 character??? thx for your help!

joy.simpson · Answer

Sorry that was for Visual Basic. In C use the + symbol instead of & txtBox.Text = txtBox.Text + b;

joy.simpson · Answer

Concatenate the string by adding it on to whatever is already in the textbox: txtBox.Text = txtBox.Text & b