Initial population

2026-03-07 19:22:22 -06:00
parent 647f55feb9
commit cae1a3ec46
108 changed files with 28484 additions and 0 deletions
--- a/JRCookbookControls/JRCookbookNumericTextBox.cs
+++ b/JRCookbookControls/JRCookbookNumericTextBox.cs
@@ -0,0 +1,158 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace JRCookbookControls
+{
+    [System.Serializable()]
+    public class JRCookbookNumericTextBox: TextBox
+    {
+        private String _strLastValue = String.Empty;
+        private bool _blnAllowNegative = true;
+        private bool _blnAllowDecimal = true;
+        private bool _blnAllowEmpty = true;
+
+        public JRCookbookNumericTextBox()
+        {
+            this.TextChanged += new System.EventHandler(this.NumericTextBox_TextChanged);
+            this.Validating += new System.ComponentModel.CancelEventHandler(this.NumericTextBox_Validating);
+        }
+
+        [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
+        public bool AllowDecimal
+        {
+            get
+            {
+                return _blnAllowDecimal;
+            }
+            set
+            {
+                _blnAllowDecimal = value;
+            }
+
+        }
+
+        [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
+        public bool AllowNegative
+        {
+            get
+            {
+                return _blnAllowNegative;
+            }
+            set
+            {
+                _blnAllowNegative = value;
+            }
+
+        }
+
+        [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
+        public bool AllowEmpty
+        {
+            get
+            {
+                return _blnAllowEmpty;
+            }
+            set
+            {
+                _blnAllowEmpty = value;
+            }
+
+        }
+
+        private void NumericTextBox_TextChanged(System.Object sender, System.EventArgs e)
+        {
+            bool blnValueIsOK = true;
+            Int32 intPosition = 0;
+            bool blnAlreadySeenDecimal = false;
+
+            //Allow digits, one decimal point, and minus sign (if first character only)
+            foreach (char chrCharacter in this.Text)
+            {
+                switch (chrCharacter)
+                {
+                    case char x when (x >= '0' && x <= '9'):
+                            //OK
+                        break;
+                    case '-':
+                        if (intPosition > 0 || AllowNegative == false)
+                        {
+                            blnValueIsOK = false;
+                        }
+                        break;
+                    case '.':
+                        if (blnAlreadySeenDecimal)
+                        {
+                            blnValueIsOK = false;
+                        }
+                        else
+                        {
+                            blnAlreadySeenDecimal = true;
+                        }
+                        break;
+                    default:
+                        blnValueIsOK = false;
+                        break;
+                }
+
+                intPosition += 1;
+
+                if (!blnValueIsOK)
+                {
+                    break;
+                }
+
+            }
+
+            if (blnValueIsOK)
+            {
+                _strLastValue = this.Text;
+            }
+            else
+            {
+                Int32 oldSelectionStart = this.SelectionStart - 1;
+                this.Text = _strLastValue;
+                if (oldSelectionStart >= 0 && oldSelectionStart <= this.Text.Length)
+                {
+                    this.SelectionStart = oldSelectionStart;
+                }
+            }
+
+        }
+
+        private void NumericTextBox_Validating(System.Object sender, System.ComponentModel.CancelEventArgs e)
+        {
+            if (this.Text == String.Empty)
+            {
+                if (AllowEmpty)
+                {
+                    return;
+                }
+                else
+                {
+                    e.Cancel = true;
+                }
+            }
+
+            //Now that we know it's not empty, make sure we have a digit
+            foreach (char chrCharacter in this.Text)
+            {
+                switch (chrCharacter)
+                {
+                    case char x when (x >= '0' && x <= '9'):
+                        //OK
+                        return;
+                }
+            }
+
+            //If we got here, we have hyphen or period, but no digits
+            e.Cancel = true;
+        }
+
+    }
+
+}