i want to give text box no input character. only put the number

Question

2.60/5 (5 votes)

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C#

namespace shuvo
{
    public partial class Form1 : Form
    {
        bool div = false;
        bool multply = false;
        bool minus = false;
        bool plus = false;
        bool equal = false;
        bool pluseminuse = false;

        public Form1()

        {
            InitializeComponent();
        }

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

        private void CheckifEqual()
        {
            if (equal)
            {
                textBox1.Text = "";
                equal = false;
            }
        }

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

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

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

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

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

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

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

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

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

        private void buttoncon_Click(object sender, EventArgs e)
        {
            CheckifEqual();
            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 buttonminus_Click(object sender, EventArgs e)
        {
            if(textBox1.Text=="")
            {
                return;
            }
            else
            {
                minus=true;
                textBox1.Tag=textBox1.Text;
                textBox1.Text="";

            }
        }

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

        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();
            }
            if (plus)
            {
                decimal doc = Convert.ToDecimal(textBox1.Tag) + Convert.ToDecimal(textBox1.Text);
                textBox1.Text = doc.ToString();
            }
            if (minus)
            {
                decimal doc = Convert.ToDecimal(textBox1.Tag) - Convert.ToDecimal(textBox1.Text);
                textBox1.Text = doc.ToString();
            }
            if (multply)
            {
                decimal doc = Convert.ToDecimal(textBox1.Tag) * Convert.ToDecimal(textBox1.Text);
                textBox1.Text = doc.ToString();
            }
        }

        private void buttonpluseminuse_Click(object sender, EventArgs e)
        {
            if (textBox1.Text.Contains("-"))
            {
                textBox1.Text = textBox1.Text.Remove(0, 1);
            }
            else
            {
                textBox1.Text = "-" + textBox1.Text;
            }
        }

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

        private void button18_Click(object sender, EventArgs e)
        {
            plus = minus = multply = div=equal = false;
            textBox1.Text = "";
            textBox1.Tag = "";
        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {

        }

    }
}

Posted 27-May-11 9:09am

shakil442

Add a Solution

7 solutions

Solution 2

Numeric TextBox : Allow your users to enter numeric data the easy way[^]
TNumEditBox: A Numeric Edit Control with ContextMenu in C# Applications[^]

Posted 27-May-11 9:44am

Monjurul Habib

Updated 27-May-11 9:45am

v2

Solution 3

I thing your are trying to validate the input.Try to use regular expressions to validate .check following link
Validation with Regular Expressions Made Simple[^]

Posted 27-May-11 11:15am

Thabo@Codeproject

Solution 4

Check out MaskedTextBox[^]. It is a TextBox control that supports a declarative syntax for accepting or rejecting user input.

You can define how a input is handled.

Posted 27-May-11 11:26am

Kim Togo

Solution 5

hi,

this will help you..

//-----------------------------only number

XML

<script type="text/javascript">
        function onlyNumbers(event) {
            var e = event || evt; // for trans-browser compatibility
            var charCode = e.which || e.keyCode;
            if (charCode > 31 && (charCode < 48 || charCode > 57))
                return false;
            return true;
        }
    </script>
//In page load of the aspx page
   txtAcStNo.AddTextBoxAttribute("onkeypress", "return onlyNumbers(event);");

Posted 27-May-11 19:10pm

anvas kuttan

Solution 6

Use filtered textbox like,-

<cc1:filteredtextboxextender id="FilteredTextBoxExtender4" runat="server" filtertype="Numbers" xmlns:cc1="#unknown">
                                                            TargetControlID="txtGsmNo">
                                                        </cc1:FilteredTextBoxExtender></cc1:filteredtextboxextender>

Or have a look on this code,-

Text box to accept only number[^]

Hope this can help you.

Posted 27-May-11 19:21pm

Prasanta_Prince

Comments

RaviRanjanKr 28-May-11 1:42am

OP using Windows Application so it will not work :)

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RaviRanjanKr · Accepted Answer · 2011-05-27T19:35:00

Solution 7

Try

C#

private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
      {
          if (!(e.KeyChar >= '0' && e.KeyChar <= '9'))
              e.Handled = true;
      }

Posted 27-May-11 19:35pm

RaviRanjanKr

Comments

shakil442 28-May-11 2:42am

thank you very much.
another question division 6/0 then message continue,quit,details. but i am wanted to can't to divide by zero message only.

OriginalGriff · Accepted Answer · 2011-05-27T09:21:00

First off, don't just dump your code: post only the relevant fragments, rather than the whole program.
Secondly, stop using the default name for things. Having a button1 which is the zero, and button7 which is the six, is lazy, stupid and unnecessarily confusing.
Thirdly, stop duplicating code. It's is wasteful, time consuming, and bad practice. Instead, write a single generic routine which handles them all the same way. Set each numeric buttons Tag property to the appropriate digit, then set all of them to have the same click handler:

private void NumericButton_Click(object sender, EventArgs e)
   {
   Button b = sender as Button;
   if (b != null)
      {
      CheckifEqual();
      textBox1.Text = textBox1.Text + b.Tag.ToString();
      }
   }

Now, when you need to make a change, you only have to do it in one place!

When you have done all that, use the Improve Question widget to change your question - and this time, try to explain what your problem is?

i want to give text box no input character. only put the number

7 solutions

Solution 2

Solution 7

Solution 1

Solution 3

Solution 4

Solution 5

Solution 6

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