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using System; |
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using System.Collections.Generic; |
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using System.ComponentModel; |
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using System.Drawing; |
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using System.Data; |
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using System.Linq; |
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using System.Text; |
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using System.Windows.Forms; |
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using System.Collections; |
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|
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namespace System.Windows.Forms |
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{ |
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public partial class NumericBoxBase : UserControl |
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{ |
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public NumericBoxBase() |
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{ |
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InitializeComponent(); |
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this.Value = (0).ToString(); |
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this.ReadOnly = false; |
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} |
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|
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private string _Value; |
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[Browsable(true)] |
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public string Value |
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{ |
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get { return _Value; } |
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set { _Value = value; this.Text = value; } |
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} |
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|
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private bool _ReadOnly; |
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public bool ReadOnly |
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{ |
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get { return _ReadOnly; } |
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set { _ReadOnly = value; if (_ReadOnly) { txtValueBox.Enabled = false; } else { txtValueBox.Enabled = true; } } |
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} |
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public override string Text |
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{ |
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get { return txtValueBox.Text; } |
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set { txtValueBox.Text = value; } |
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} |
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|
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private void btnCopy_Click(object sender, EventArgs e) { Clipboard.SetData(DataFormats.Text, this.Text); } |
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private void btnPaste_Click(object sender, EventArgs e) { if (this.ReadOnly) return; this.Text = (string)Clipboard.GetData(DataFormats.Text); } |
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|
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|
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protected void CreateStandardKeys(List<Keys> ValidKeys) |
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{ |
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// these are mostly editing/navigation keys |
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ValidKeys.Add(Keys.Delete); |
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ValidKeys.Add(Keys.Back); |
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ValidKeys.Add(Keys.Up); |
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ValidKeys.Add(Keys.Down); |
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ValidKeys.Add(Keys.Left); |
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ValidKeys.Add(Keys.Right); |
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ValidKeys.Add(Keys.Home); |
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ValidKeys.Add(Keys.End); |
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} |
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protected virtual void CreateValidKeys(List<Keys> ValidKeys) |
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{ |
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//ValidKeys.AddRange(Enum.GetValues(typeof(Keys)).Cast<Keys>().Where(x => x >= Keys.D0 && x <= Keys.D9)); |
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// ValidKeys.AddRange(Enum.GetValues(typeof(Keys)).Cast<Keys>().Where(x => x >= Keys.NumPad0 && x <= Keys.NumPad9)); |
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} |
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protected List<Keys> GetValidKeys() |
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{ |
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List<Keys> ValidKeys = new List<Keys>(); |
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CreateStandardKeys(ValidKeys); |
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CreateValidKeys(ValidKeys); |
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return ValidKeys; |
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} |
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private void txtValueBox_KeyDown(object sender, KeyEventArgs e) |
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{ |
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List<Keys> ValidKeys = this.GetValidKeys(); |
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if (ValidKeys.Contains(e.KeyCode)) |
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{ |
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if (txtValueBox.Text.Contains(".") && (e.KeyCode == Keys.Decimal || e.KeyCode == Keys.OemPeriod)) |
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{ |
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e.SuppressKeyPress = true; |
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} |
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return; |
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} |
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if(!e.Control && !e.Alt) |
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{ |
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e.SuppressKeyPress = true; |
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} |
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} |
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|
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private void txtValueBox_TextChanged(object sender, EventArgs e) |
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{ |
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this.Value = this.Text; |
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} |
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} |
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|
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#region NumericBox Extensions |
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public static class NumericBoxExtensions |
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{ |
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public static byte ToByte(this NumericBoxBase val) |
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{ |
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try |
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{ |
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return Convert.ToByte(val.Value); |
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} |
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catch { return 0; } |
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} |
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public static sbyte ToSByte(this NumericBoxBase val) |
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{ |
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try |
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{ |
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return Convert.ToSByte(val.Value); |
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} |
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catch { return 0; } |
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} |
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public static Int16 ToInt16(this NumericBoxBase val) |
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{ |
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try |
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{ |
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return Convert.ToInt16(val.Value); |
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} |
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catch { return 0; } |
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} |
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public static Int32 ToInt32(this NumericBoxBase val) |
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{ |
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try |
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{ |
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return Convert.ToInt32(val.Value); |
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} |
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catch { return 0; } |
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} |
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public static Int64 ToInt64(this NumericBoxBase val) |
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{ |
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try |
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{ |
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return Convert.ToInt64(val.Value); |
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} |
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catch { return 0; } |
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} |
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public static UInt16 ToUInt16(this NumericBoxBase val) |
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{ |
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try |
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{ |
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return Convert.ToUInt16(val.Value); |
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} |
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catch { return 0; } |
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} |
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public static UInt32 ToUInt32(this NumericBoxBase val) |
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{ |
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try |
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{ |
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return Convert.ToUInt32(val.Value); |
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} |
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catch { return 0; } |
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} |
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public static UInt64 ToUInt64(this NumericBoxBase val) |
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{ |
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try |
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{ |
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return Convert.ToUInt64(val.Value); |
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} |
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catch { return 0; } |
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} |
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public static Single ToSingle(this NumericBoxBase val) |
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{ |
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try |
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{ |
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return Convert.ToSingle(val.Value); |
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} |
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catch { return 0; } |
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} |
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public static double ToDouble(this NumericBoxBase val) |
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{ |
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try |
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{ |
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return Convert.ToDouble(val.Value); |
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} |
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catch { return 0; } |
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} |
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public static decimal ToDecimal(this NumericBoxBase val) |
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{ |
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try |
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{ |
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return Convert.ToDecimal(val.Value); |
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} |
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catch { return 0; } |
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} |
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public static string ToString(this NumericBoxBase val) |
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{ |
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try |
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{ |
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return Convert.ToString(val.Value); |
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} |
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catch { return "0"; } |
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} |
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} |
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#endregion |
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} |
