input chinese character using text box

[sah]

I have a c# form application with a text box and a button. I type Chinese character in the text box and press the button to assign the input to a string using the following code

String  chineseChar = Textbox1.Text ;

// TextBox font property: Arial Unicode MS or SimSun

But it assigns empty string to chineseChar variable.

When I copy a chinese text from a MS word and paste it to the textbox, it works.

Where the problem?

Environment:

VS 2008, C# .net framework 3.5

Windows XP or upper

Ms PinYin IME 3.0

[Momerath]

Could you explain more? It seems that you are saying that if you type them in, they don't show up in the chineseChar string, but if you cut/paste them in they do?

[sah]

Could you explain more? It seems that you are saying that if you type them in, they don't show up in the chineseChar string, but if you cut/paste them in they do?

if I type them in, they show up in the chinese char string. There is no problem to type chinese character. But When i type in chinese character and assign the characters to a string type variable then empty string is assigned to the variable.

String  str = Textbox1.Text ;

assigns empty string to 'str 'variable.

When I copy a chinese text from a MS word and paste it to the textbox, it assigns a string (that i paste to the text box)to the str variable. In this case, empty string is not assigned.

I wanna type chinese character and assign that characters to a string type variable.

[sah]

It works now.

it took some time to echo chinese character in the text box. I pressed button before all characters echo in the text box and that's why it assigns empty string.

Thanks all for response.