By the KeyPress event KeyAscii parameter and text box together SelStart property can only achieve limited text box enter a number (including negative numbers, decimal point). In fact this method can also be used for other controls, such as the PictureBox control. So I wrote a sub-process, to facilitate calls.

FilterTextBoxNumStyle\文本框KeyAscii数字格式过滤.rar
FilterTextBoxNumStyle

• We are an exchange download platform that only provides communication channels. The downloaded content comes from the internet. Except for download issues, please Google on your own.
• The downloaded content is provided for members to upload. If it unintentionally infringes on your copyright, please contact us.
• Please use Winrar for decompression tools
• If download fail, Try it againg or Feedback to us.
• If downloaded content did not match the introduction, Feedback to us，Confirm and will be refund.
• Before downloading, you can inquire through the uploaded person information

Nothing．