C#

double numericValue;
bool isNumeric = double.TryParse(myTextBox.Text, out numericValue);

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The apostle Paul, modernly speaking: Epistles of Paul

Judah Himango

dan neely wrote:

there's no int.TryParse method

Tech, life, family, faith: Give me a visit.
I'm currently blogging about: Messianic Instrumentals (with audio)
The apostle Paul, modernly speaking: Epistles of Paul

Judah Himango

dan neely wrote:

Unfortunately there's no int.TryParse method to accompany that one.

<br />
Int16.TryParse(string s,out short result)<br />
Int32.TryParse(string s, out int result)<br />
Int64.TryParse(string s,out long result)<br />

Vipin Venugopal wrote:

U can just use a simle java script for that.

<input type=text name=txtPostalCode removed="if(!isNS4){if(event.keyCode > 45 || event.keyCode > 57) event.returnValue = false;}else{if(event.which < 45 || event.which > 57) returnfalse;}">

Tech, life, family, faith: Give me a visit.
I'm currently blogging about: Messianic Instrumentals (with audio)
The apostle Paul, modernly speaking: Epistles of Paul

Judah Himango

if ((int)e.KeyChar >= 48 & (int)e.KeyChar <= 57)
  //Do stuff

if (e.KeyCode >= Keys.D0 & e.KeyCode <= Keys.D9)
   this.Text = e.KeyValue.ToString();

public class InertButton : Button
{
  public InertButton()
  {
    SetStyle(ControlStyles.Selectable, false);
  }
}

internal static void GetBytes(decimal d, byte[] buffer)
{
      buffer[0] = (byte) d.lo;
      buffer[1] = (byte) (d.lo >> 8);
      buffer[2] = (byte) (d.lo >> 0x10);
      buffer[3] = (byte) (d.lo >> 0x18);
      buffer[4] = (byte) d.mid;
      buffer[5] = (byte) (d.mid >> 8);
      buffer[6] = (byte) (d.mid >> 0x10);
      buffer[7] = (byte) (d.mid >> 0x18);
      buffer[8] = (byte) d.hi;
      buffer[9] = (byte) (d.hi >> 8);
      buffer[10] = (byte) (d.hi >> 0x10);
      buffer[11] = (byte) (d.hi >> 0x18);
      buffer[12] = (byte) d.flags;
      buffer[13] = (byte) (d.flags >> 8);
      buffer[14] = (byte) (d.flags >> 0x10);
      buffer[15] = (byte) (d.flags >> 0x18);
}

public static int[] GetBits(decimal d)
{
      return new int[] { d.lo, d.mid, d.hi, d.flags };
}

decimal d = new decimal(1234.5678);<br />
        byte[] b = System.Text.Encoding.UTF8.GetBytes(d.ToString());<br />
        string s = System.Text.Encoding.UTF8.GetString(b);<br />
        d = Convert.ToDecimal(s);