帮助在文本框中没有给出输入键盘字符 [英] help for no give input keybord character in textbox

问题描述

namespace shuvo
{
    public partial class Form1 : Form
    {
        bool div = false;
        bool equal = false;
        public Form1()

        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + "0";
        }

        private void button2_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + "1";
        }

        private void button3_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + "2";
        }

        private void button4_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + "3";
        }

        private void button5_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + "4";
        }

        private void button6_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + "5";
        }

        private void button7_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + "6";
        }

        private void button8_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + "7";
        }

        private void button9_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + "8";
        }

        private void button10_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + "9";
        }

        private void button11_Click(object sender, EventArgs e)
        {
            if (textBox1.Text.Contains("."))
            {
                return;
            }
            else
            {
                textBox1.Text = textBox1.Text + ".";
            }
        }




        private void buttondiv_Click(object sender, EventArgs e)
        {
            if (textBox1.Text == "")
            {
                return;
            }
            else
            {
                div = true;
                textBox1.Tag = textBox1.Text;
                textBox1.Text = "";

            }
        }

        private void button14_Click(object sender, EventArgs e)
        {

        }

        private void button13_Click(object sender, EventArgs e)
        {

        }

        private void buttonequal_Click(object sender, EventArgs e)
        {
            equal=true;
            if (div)
            {
                decimal doc = Convert.ToDecimal(textBox1.Tag) / Convert.ToDecimal(textBox1.Text);
                textBox1.Text = doc.ToString();
            }
        }
    }
}

private void button10_Click(object sender, EventArgs e)
        {
            textBox1.Text = textBox1.Text + "9";
        }

        private void button11_Click(object sender, EventArgs e)
        {
            if (textBox1.Text.Contains("."))
            {
                return;
            }
            else
            {
                textBox1.Text = textBox1.Text + ".";
            }
        }




        private void buttondiv_Click(object sender, EventArgs e)
        {
            if (textBox1.Text == "")
            {
                return;
            }
            else
            {
                div = true;
                textBox1.Tag = textBox1.Text;
                textBox1.Text = "";

            }
        }

        private void button14_Click(object sender, EventArgs e)
        {

        }

        private void button13_Click(object sender, EventArgs e)
        {

        }

        private void buttonequal_Click(object sender, EventArgs e)
        {
            equal=true;
            if (div)
            {
                decimal doc = Convert.ToDecimal(textBox1.Tag) / Convert.ToDecimal(textBox1.Text);
                textBox1.Text = doc.ToString();
            }
        }
    }
}

推荐答案

您似乎正在尝试编写一个计算器，并使用文本框作为结果显示.如果是这样，那么我假设您要对其进行安排，以使用户无法在文本框中键入内容?

如果是这种情况，那么有两种方法可以做到:
1)不要使用文本框:用户希望输入文本框，因此使用他们不能混淆的文本框.请改用标签.

2)将TextBox的ReadOnly属性设置为true

It looks like you are trying to write a calculator, and use a textbox as the results display. If so, then I assume you want it arranged so that the user cannot type into the textbox?

If that is the case, then there are two ways to do it:
1) Don''t use a text box: users expect to type in them, so using one they can''t could be confusing. Use a Label instead.

2) Set the ReadOnly property of the TextBox to true

仅需注意:谁需要所有带有按钮的计算器?仅当这是一个(不良)学校项目分配…

在现实生活中，这就是简单的计算器应该做的: http://www.sakryukov.org/freeware/calculator/ [ ^ ].
只需一个文件.

—SA

Just a note: who needs all those calculators with buttons? Only if it is a (bad) school project assignmnt…

In real life, this is what a simple calculator should do: http://www.sakryukov.org/freeware/calculator/[^].
Just one file.

—SA

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