text box - setting the precision

Question

i want to restrict the numbers to be entered on the text box to five precision

eg: 1234.52342 -1234.52342

how i can restrict while entering the numbers on the text box

Answer 1

Use a MaskedTextBox control.

http://msdn.microsoft.com/en-us/library/system.windows.forms.maskedtextbox.aspx

Answer 2

您还可以使用customvalidator控件对控件进行限制。.Telerik还具有一个数字文本框控件，您可以查看http://demos.telerik.com/aspnet-ajax/input/examples/radnumerictextbox/firstlook/defaultcs.aspx