使用try parse()处理字符串 [英] manipulating strings with try parse()

问题描述

如果int.TryParse()无法返回int，有某种方法可以返回零(0)

我有两个文本框，必须使用int.try Parse()
检查数字输入 如果我的一个或两个文本框包含除int值以外的字符串或null，我想将其值设置为零(0)并汇总结果

Hi there, is there some way of returning Zero (0) if int.TryParse() cannot return int

I have two text Boxes which i must check for numeric inputs using int.try Parse()
If one or both of my text Boxes contain strings or nulls other other than int values, i want to set their values to zero (0) and sum up the results

int number1=Convert.ToInt32(textBox1.Text);

int number2=Convert.ToInt32(textBox2.Text);

int sum = number1 + number2;
  
if number1=null  or "string" and number2 = null or "string"

sum=0+0;

在此先感谢
您的马丁

Thanks in Advance
Yours Martin

推荐答案

尝试:

int val;
int i = int.TryParse(testBox1.Text, out val) ? val : 0;

int number1 = (int.TryParse(textBox1.Text, out number1)) ? number1 : 0;
int number2 = (int.TryParse(textBox2.Text, out number2)) ? number2 : 0;
int sum = number1 + number2;

干杯！

—MRB

Cheers!

—MRB

int a = 0;
int b = 0;
int.TryParse(textbox1.Text, out a);
int.TryParse(textbox2.Text, out b);
int sum = a + b;

TryParse将为您忍耐;)

TryParse will ninja it for you ;)

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