如何全局定义验证功能 [英] how to define validation function globally

问题描述

大家好，
抱歉，但是我是C#的新手....
任何朋友可以告诉我如何定义文本框的验证，例如仅数字，char.only等....实际上，我的问题是我想定义这些函数.我需要以其他2形式....

请任何哥们告诉我我该怎么办......?


C#窗口应用程序

hello guys,
sorry but i m new in C#....
can any buddy tell me how to define validation for text box like numbers only,char.only etc.... actually my problem is that i want to define these function.in such way ....i can call this function directly as i need in different-2 form ....

please can any buddy give me idea what i have to do......?


C# window application

推荐答案

讨论了许多Windows窗体验证技术^ ].
其中，使用MaskedTextBox控件的验证和事件驱动的验证是更常见的方法.

看看验证事件 [ ^ ].
最后，此处 [

A number of Windows Forms validations techniques are discussed here[^].
Amongst them, Validation with the MaskedTextBox Control and Event Driven validation are more common approaches.

Have a look at the validating event as well[^].
Finally, here[^] is a very simple example to get you started.

创建一个静态类，例如ReqFunctions.将方法设置为静态，然后可以从您正在使用的表单中调用它们.

例如在我的头顶上:

Create a static class such as ReqFunctions. Make the methods as static and then you can call them from the form that you are working.

for example on top of my head:

class ReqFunctions
{
  public static bool ValidateTextBox(string txtBoxValue, string validationType)
  {    
    if(validatioType == "Number")
    {
      Regex isnumber = new Regex("[^0-9]");
      return !isnumber.IsMatch(txtBoxValue);    
    }
    if(validationType == "Char")
    {
      Regex ischar = new Regex("^[a-zA-Z]+

"); 返回！ischar.IsMatch(txtBoxValue); } } }

"); return !ischar.IsMatch(txtBoxValue); } } }

在您的代码中，您可以将该函数称为

In your code you can call this function as

ReqFunctions.ValidateTextBox(txtTextbox1.Text);

您还可以检查 MSDN链接 [ ^ ].
最近，我也发现了这一点:仅数字和字符C#中的文本框验证！ [

You can also check this MSDN link[^].
Recently I have found this also: Numbers and Characters only Textbox Validation in C# ![^]

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