乱数 [英] reagarding the numbers

问题描述

能否请您告诉我如何检查文本框中是否显示数字?
谢谢，

can you please tell me how to check whether the numbers are presented in the textbox or not?
thanks,

推荐答案

您还可以使用Contains属性，该属性用于返回一个值，该值指示是否指定的String对象

You can also use Contains property which is used to returns a value indicating whether the specified String object

bool res =textBox1.Text.Contains("your Value"); // res will contain true if values is present 

这就是您要寻找的

Is this what you are looking for

//assuming a textbox named textbox1

int anInteger;
anInteger = Convert.ToInt32(textBox1.Text);//get the text as an integer

//or 
anInteger = int.Parse(textBox1.Text); //try to parse the value as an integer

另一种方法可能是

another method is possibly

var match = textBox1.Text.IndexOfAny("1234567890".ToCharArray()) != -1

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