我需要在3个文本框中输入正数

问题描述

我有3个文本框，2个文本框值可能大于零，一个文本框值为0。但我需要3个文本框值结果是积极的。 for.eg:5*5*0=25

 尝试 
 {
  if （txtNumber.Text ==  string  .Empty）
 {
 number =（txtNumber.Text ==  string  .Empty || txtNumber.Text ==   0）？  0 ：
 Convert.ToInt32（txtNumber.Text）; 
 
} 
  else  
 {
 number = Convert.ToInt32（txtNumber.Text）; 
} 
 
  if （txtLength.Text ==  string 。空）
 {
 lenght =（txtLength.Text ==  string  .Empty || txtLength.Text ==   0）？  0 ：
 Convert.ToDouble（txtLength.Text）; 
 
} 
  else  
 {
 lenght = Convert.ToDouble（txtLength.Text）; 
} 
  if （txtHeight.Text ==  string  .Empty）
 {
 height =（txtHeight.Text ==  string  .Empty || txtHeight.Text ==    0）？  0 ：
 Convert.ToDouble（txtHeight.Text）; 
 
} 
  else  
 {
 height = Convert.ToDouble（txtHeight.Text）; 
} 
  if （txtBreadth.Text ==  string  .Empty）
 {
 breadth =（txtBreadth.Text ==  string  .Empty || txtBreadth.Text ==    0）？  0 ：
 Convert.ToDouble（txtBreadth.Text）; 
} 
  else  
 {
 breadth = Convert.ToDouble（txtBreadth.Text）; 
} 
 
 txtQuantity.Text =（number * lenght * breadth * height）.ToString（）; 
 
} 
  catch （例外）
 {
 MessageBox.Show（ 发生错误，请再试一次!!!）; 
} 

我的尝试：



我需要在3个文本框中输入正数

解决方案

I have 3 textboxes and 2 textboxes value is maybe greater than zero and one text boxes values is 0 . But I need to the 3 textbox values result is positive. for.eg:5*5*0=25

try
           {
               if (txtNumber.Text == string.Empty)
               {
                   number = (txtNumber.Text == string.Empty || txtNumber.Text == "0") ? 0 :
                   Convert.ToInt32(txtNumber.Text);

               }
               else
               {
                   number = Convert.ToInt32(txtNumber.Text);
               }

               if (txtLength.Text == string.Empty)
               {
                   lenght = (txtLength.Text == string.Empty || txtLength.Text == "0") ? 0 :
                   Convert.ToDouble(txtLength.Text);

               }
               else
               {
                   lenght = Convert.ToDouble(txtLength.Text);
               }
               if (txtHeight.Text == string.Empty)
               {
                   height = (txtHeight.Text == string.Empty || txtHeight.Text == "0") ? 0 :
                   Convert.ToDouble(txtHeight.Text);

               }
               else
               {
                   height = Convert.ToDouble(txtHeight.Text);
               }
               if (txtBreadth.Text == string.Empty)
               {
                   breadth = (txtBreadth.Text == string.Empty || txtBreadth.Text == "0") ? 0 :
                   Convert.ToDouble(txtBreadth.Text);
               }
               else
               {
                   breadth = Convert.ToDouble(txtBreadth.Text);
               }

               txtQuantity.Text = (number * lenght * breadth * height).ToString();

           }
           catch (Exception)
           {
               MessageBox.Show("Error occured, Please try again!!!");
           }

What I have tried:

I need to positive number result in 3 text boxes

解决方案

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