vb.net - Show Error using Tag Property C# -


i want know on how error using tag property? have code in vb.net not know convert c#.

scenario: textbox_qty accepts integers. if user types non-numeric character, shows tag property saying invalid characters.

this code used in vb.net. use if has null fields.

private function validfield(byval paramarray ctl() object) boolean     integer = 0 ubound(ctl)         if ctl(i).text = ""             error_reg.seterror(ctl(i), ctl(i).tag)             return false             exit function         end if     next     return true end function      if validfield(textbox_username, textbox_password, textbox_retypepassword, textbox_lastname, textbox_firstname, comboxbox_group, combobox_question, textbox_answer) = false     exit sub

if code not work? there code can show error in tag property without converting vb.net code c#?

thank helping me!

it may worthwhile check information class, has methods validating objects. while visualbasic class, can still used in c# 1 of main benefits of .net framework.

in visual basic not need add references project.

if want use information class in c# make sure add reference microsoft.visualbasic in project, add using microsoft.visualbasic; class or module adding following code to.

you can use information.isnumeric method validate numeric entry.

example vb.net code...

private function validfield(byval paramarray ctl() object) boolean     integer = 0 ubound(ctl)         dim tb textbox = directcast(ctl(i),textbox)         if not isnumeric(tb.text)             error_reg.seterror(tb, tb.tag)             return false         end if     next     return true end function

example c# code...

private bool validfield(params object[] ctl) {     (int = 0; <= information.ubound(ctl); i++) {         textbox tb = (textbox)ctl[i];         if (!information.isnumeric(tb.text)) {             error_reg.seterror(tb, tb.tag);             return false;         }     }     return true; }

also exit function after return statement not needed, return automatically exits function result.


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