Help with Numeric Only Textbox

Hi All,
I am a noob in programing :(
I have some small problem with adding a function that will allow only numbers into the text box.
Can someone help?

Thanks alot.

Here is the code

Code:

---


using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Sybase.Data;
using Sybase.Data.AseClient;

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

private void panel1_Paint(object sender, PaintEventArgs e)
{

}

private void label1_Click(object sender, EventArgs e)
{

}


private void button1_Click(object sender, EventArgs e)
{

string ID = SID.Text;

if (ID == "" || ID == "0" || ID == null)
{
label4.Text = "Are you Kidding Me";
return;
}

// <--> Sybase Connection String and Query <-->

AseConnection oAseConn = new AseConnection();
oAseConn.ConnectionString = "Data Source=10.161.56.162;" +
"Port=2024;" +
"User ID=dbs;" +
"Password=password";
oAseConn.Open();

AseCommand getsid = oAseConn.CreateCommand();
getsid.CommandText = "select SID_num from Sessions where sid = " + ID;
Object obj = getsid.ExecuteScalar();


AseCommand getname = oAseConn.CreateCommand();
getname.CommandText = "select code from SID_info where SID_num = " + obj;
Object targetname = getname.ExecuteScalar();

label4.Text = targetname.ToString();
getsid.Dispose();
oAseConn.Dispose();

}

private void SID_TextChanged(object sender, EventArgs e)
{

}
}
}

---

P.S I tried to use this but either i got an error or nothing happens.
Please see if you can help me place it on the correct place in my code.

Code:

---

private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
if (!char.IsDigit(e.KeyChar) && e.KeyChar != (char)Keys.Back)
e.Handled = true;
}

---

Thanks alot for the support
Jonny

Edit your first post to remove the password and IP address. That won't help us, but can hurt you.

Not sure why you're using ! and || and &&

You should be using OR, AND, or, NOT (|| && !) i think

Quote:

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You should be using OR, AND, or, NOT (|| && !) i think

---

This is the C# forum : OR, AND and NOT don't exist in C#. Did you get lost DG ?

In response to the question : have you read this ?

Darwen.

P.S. Well done on using code tags !

Thanks alot guys,
i got it working finally.
i added another line in the code that was missing.