Introduction - If you have any usage issues, please Google them yourself
C# courses jobs. Design a student interest survey interface and complete the following functions: students to enter the survey information, input data validation using regular expressions. Click " add" command button, will investigate the student s name and programming hobby combined output in the lower left corner of the list box. The same time, the system pops up a folder selection dialog box, select the additional survey information above, students will complete drive letter path is written to the specified folder under the save. Click " Load" command button to pop up a file open dialog box, choose the questionnaire file, the program will read the contents of the file output to the lower right corner of the RichTextBox control.