为什么我没有在我的文本框中输出？ [英] Why I Am Not Getting Output In My Textbox?

问题描述

我想在mvc的文本框中显示菱形图案。当我在控制台上运行我的代码应用程序输出显示在那里，但我没有在mvc屏幕输出。

这是我的控制器：

I want to display diamond pattern in textbox in mvc. When i run my code on console application output is diplayed there but i did not get output on screen in mvc.
Here is my controller:

public class diamondController : Controller
   {
       public ActionResult Diamond()
       {
           DiamondModel model = new DiamondModel();
           return View(model);

       }
       [HttpGet]
       public ActionResult Sum()
       {
           DiamondModel model = new DiamondModel();

           return View(model);
       }
       [HttpPost]
       public ActionResult Diamond(string button, DiamondModel model)
       {
           if (model.textBox.Contains("4") && button == "Submit")
           {
               model.textBox1 = "I love Pakistan";

               model.n = Convert.ToInt32(model.textBox);

               for (int i = 1; i <= model.n; i++)
               {
                   for (int j = 0; j < (model.n - i); j++)
                       model.textBox1 = ("");
                   for (int j = 1; j <= i; j++)
                       model.textBox1 = ("*");
                   for (int k = 1; k < i; k++)
                       model.textBox1 = ("*");

               }

               for (int i = model.n - 1; i >= 1; i--)
               {
                   for (int j = 0; j < (model.n - i); j++)
                       model.textBox1 = (" ");
                   for (int j = 1; j <= i; j++)
                       model.textBox1 = ("*");
                   for (int k = 1; k < i; k++)
                       model.textBox1 = ("*");

               }

           }
               }
           }
           return View(model);


       }

   }

推荐答案

除了 Afzaal Ahmad Zeeshan 优点之外，您应该注意 TextBox 的行为与控制台不一样：为了追加文本到 TextBox 控件，你明确地做了，例如

In addition to Afzaal Ahmad Zeeshan good points, you should note that a TextBox doesn't behave like the Console: in order to append text to a TextBox control you have explicitely do it, e.g.

myTextBox.Text = myTextBox.Text + "*";

或者更好的是，使用 StringBuilder 对象来准备文本，然后分配结果字符串到 TextBox 控件。

Or, better, use a StringBuilder object to prepare your text and then assign the resulting string to the TextBox control.

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