keyboard with c#

[resatee]

Hi everyone!
I want to input text via a virtual keyboard. To realise the keyboard I gave every single letter its own button. These buttons are inputted in a c# script as strings. I used the simple code text = text +"a" and so on to create the text. As output I have the string variable " text". This variable is linked to a "Convert to text". Now my problem is that when I press the button a, the a doesn't appear on screen. Can anybody tell me what I'm doing wrong or how I can realise the keyboard more simple? Thank you

[Daniel Willer]

I thinnk you forgot to set the changed flag.
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