如何将文本框值分配给int var? [英] how a textbox value can be assigned to an int var?

问题描述

我在c#中使用Windows窗体制作应用程序.

我必须这样做

i m making an application using windows form in c#.

i have to do this

int quan = textbox.Text;

但是偏离路线会产生错误，因此请告诉我如何将文本框值分配给int var?

but offcourse this gives error so tell me how a textbox value can be assigned to an int var?

推荐答案

您必须使用int.Parse [ int.TryParse [ ^ ]

You have to use either int.Parse[^] or int.TryParse[^]

int quan = 0;
quan = int.Parse(textbox.Text);

这会将整数值放入"quan"中，如果转换有问题，则会引发异常.

This puts the integer value into "quan" or throws an exception if there are problems with the conversion.

int quan = 0;
if (int.TryParse(textbox.Text, out quan))
   {
   ...
   }

这会将整数值放入"quan"并返回true，或者如果转换存在问题则返回false.

This put the integer value into "quan" and returns true, or returns false if there are problems with the conversion.

int.Parse或int.TryParse将解决问题！

干杯！

--MRB

int.Parse or int.TryParse will do the trick!

Cheers!

--MRB

string a = textbox.text.Tostring();
int ABC =(int)a;

string a = textbox.text.Tostring();
int ABC = (int) a;

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