How to change value of textbox

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Hi How to change value of textbox by changing the value of NumericUpDown?
I need the textbox to take the value of NumericUpDown when I assing some value to NumericUpDown

Posted 30-May-11 21:17pm

KORCARI

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Sergey Alexandrovich Kryukov 31-May-11 3:18am

Why?!!

Sergey Alexandrovich Kryukov 31-May-11 3:20am

What, trying to find out by yourself was too hard?
--SA

7 solutions

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Sergey Alexandrovich Kryukov · Answer 1 · 2011-05-30T21:19:00

Solution 1

Use the property TextBox.Text, it is a read/write property.

You need not do anything else if you "assign some value" to NumericUpDown. It won't work if the user changes the value of NumericUpDown; in this case, handle the event NumericUpDown.ValueChanged; in the body of the handler, assign the value of ValueChanged.Value.ToString() to TextBox.Text.

C#

NumericUpDown myUpDown = new NumericUpDown();
TextBox myTextBox = new TextBox();

//...

myUpDown.ValueChanged += (sender, eventArgs) => {
    myTextBox.Text = myUpDown.Value.ToString();
}

—SA

Posted 30-May-11 21:19pm

Sergey Alexandrovich Kryukov

Updated 30-May-11 21:28pm

v4

Comments

KORCARI 31-May-11 3:21am

TextBox.Text = numericUpDownAlpha.ValueChanged???????????

Sergey Alexandrovich Kryukov 31-May-11 3:25am

This is crazy! Think a bit. See my updated answer...
--SA

Tarun.K.S 31-May-11 3:39am

Yes lambda expressions, short and precise. My 5.

Sergey Alexandrovich Kryukov 31-May-11 3:42am

Thank you, Tarun.
--SA

Kim Togo 31-May-11 3:48am

Nice and clean SA. My 5.

Sergey Alexandrovich Kryukov 31-May-11 4:40am

Thank you, Kim.
--SA

Simon Bridge · Answer 2 · 2011-05-30T21:20:00

Solution 2

Hi,

What you need to do is attach an event-handler to the value-changed event of the NumericUpDown control, and use that event to set the text property of the text-box:

C#

numericUpDown1.ValueChanged += delegate
{
    this.textBox1.Text = numericUpDown1.Value.ToString();
};

Posted 30-May-11 21:20pm

Simon Bridge

Comments

Tarun.K.S 31-May-11 3:39am

Yep that will help. 5+

Kim Togo 31-May-11 3:48am

Nice and clean. My 5.

ambarishtv · Answer 3 · 2011-05-30T21:20:00

try this code

C#

using System;
using System.Windows.Forms;

namespace WindowsFormsApplication12
{
    public partial class Form1 : Form
    {
    public Form1()
    {
        InitializeComponent();
    }

    private void numericUpDown1_ValueChanged(object sender, EventArgs e)
    {
        // You can change other program parts when the value changes.
        this.textBox1.Text = "Value changed to " + numericUpDown1.Value.ToString();
    }
    }
}

Abhinav S · Answer 4 · 2011-05-30T21:21:00

Solution 4

On the ValueChanged event of the NumericUpDown control, capture the value and display it in the textbox.
This example[^] describes this and should be sufficient for you to get started.

Posted 30-May-11 21:21pm

Abhinav S

Comments

Tarun.K.S 31-May-11 3:41am

Good example. 5+

Abhinav S 31-May-11 4:16am

Thanks Tarun.

parmar_punit · Answer 5 · 2011-05-30T21:29:00

Solution 5

This may help you...

numericUpDown1.ValueChanged += (sender,e) => textBox1.Text = numericUpDown1.Value.ToString();

Posted 30-May-11 21:29pm

parmar_punit

Comments

Tarun.K.S 31-May-11 3:42am

Yep that will work. 5+

Kim Togo 31-May-11 3:46am

Nice and clean. My 5.

Tarun.K.S · Answer 6 · 2011-05-30T21:37:00

Solution 6

Use the ValueChanged event handler and in that function, update your textbox accordingly.

C#

public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            numericUpDown1.ValueChanged += new EventHandler(numericUpDown1_ValueChanged);
        }
        void numericUpDown1_ValueChanged(object sender, EventArgs e)
        {
            textBox1.Text = numericUpDown1.Value.ToString();
        }
    }

Posted 30-May-11 21:37pm

Tarun.K.S

Updated 30-May-11 21:42pm

v2

Comments

Sergey Alexandrovich Kryukov 31-May-11 3:45am

Good that setting up event handler is shown (many think that numericUpDown1_ValueChanged speaks by itself), not good is that the above name violates (good) Microsoft naming convention. All auto-generated names should be renamed. Not using Designer for setting events even better. My 5, for now.
--SA

Tarun.K.S 31-May-11 3:47am

Ohkay next time I will make sure I won't use auto-generated names. Thanks for the pointer. :)

Member 10627361 · Answer 7 · 2014-03-22T00:49:00

Solution 7

C#

private void button1_Click(object sender, EventArgs e)
{
    int a = 100;
    a++;

    txtBox1.Text = a.ToString();
}

Posted 22-Mar-14 0:49am

Member 10627361

Comments

Marcin Kozub 22-Mar-14 7:30am

What is this??
This question is 3 years old...

CHill60 22-Mar-14 9:52am

The question is 3 years old and already had 6 answers. To top it off you have not used a numeric up down control - which was in the OP. Answering old, resolved questions usually only attracts downvoting and loss of reputation... it is best avoided.

How to change value of textbox

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