added sort and replace

Metoder/Form1.Designer.cs

@@ -33,16 +33,18 @@
             btn_clear = new Button();
             lbl_found = new Label();
             txtbx_text = new RichTextBox();
-            txbx_replace = new TextBox();
+            txtbx_replace = new TextBox();
             btn_replace = new Button();
+            btn_sort = new Button();
             SuspendLayout();
             // 
             // btn_find
             // 
             btn_find.Anchor = AnchorStyles.Top | AnchorStyles.Right;
-            btn_find.Location = new Point(676, 6);
+            btn_find.Location = new Point(647, 4);
+            btn_find.Margin = new Padding(2);
             btn_find.Name = "btn_find";
-            btn_find.Size = new Size(112, 34);
+            btn_find.Size = new Size(78, 24);
             btn_find.TabIndex = 1;
             btn_find.Text = "Find";
             btn_find.UseVisualStyleBackColor = true;
@@ -51,17 +53,19 @@
             // txtbx_find
             // 
             txtbx_find.Anchor = AnchorStyles.Top | AnchorStyles.Right;
-            txtbx_find.Location = new Point(520, 6);
+            txtbx_find.Location = new Point(538, 4);
+            txtbx_find.Margin = new Padding(2);
             txtbx_find.Name = "txtbx_find";
             txtbx_find.PlaceholderText = "Search text";
-            txtbx_find.Size = new Size(150, 31);
+            txtbx_find.Size = new Size(106, 23);
             txtbx_find.TabIndex = 2;
             // 
             // btn_clear
             // 
-            btn_clear.Location = new Point(12, 9);
+            btn_clear.Location = new Point(8, 5);
+            btn_clear.Margin = new Padding(2);
             btn_clear.Name = "btn_clear";
-            btn_clear.Size = new Size(112, 34);
+            btn_clear.Size = new Size(78, 23);
             btn_clear.TabIndex = 3;
             btn_clear.Text = "Clear";
             btn_clear.UseVisualStyleBackColor = true;
@@ -71,9 +75,10 @@
             // 
             lbl_found.Anchor = AnchorStyles.Top | AnchorStyles.Right;
             lbl_found.AutoSize = true;
-            lbl_found.Location = new Point(676, 44);
+            lbl_found.Location = new Point(647, 30);
+            lbl_found.Margin = new Padding(2, 0, 2, 0);
             lbl_found.Name = "lbl_found";
-            lbl_found.Size = new Size(108, 25);
+            lbl_found.Size = new Size(71, 15);
             lbl_found.TabIndex = 4;
             lbl_found.Text = "items found";
             lbl_found.Visible = false;
@@ -81,44 +86,61 @@
             // txtbx_text
             // 
             txtbx_text.Anchor = AnchorStyles.Top | AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
-            txtbx_text.Location = new Point(12, 72);
+            txtbx_text.Location = new Point(8, 47);
+            txtbx_text.Margin = new Padding(2);
             txtbx_text.Name = "txtbx_text";
-            txtbx_text.Size = new Size(776, 352);
+            txtbx_text.Size = new Size(718, 355);
             txtbx_text.TabIndex = 5;
             txtbx_text.Text = "";
             // 
-            // txbx_replace
+            // txtbx_replace
             // 
-            txbx_replace.Location = new Point(171, 8);
+            txtbx_replace.Anchor = AnchorStyles.Top | AnchorStyles.Right;
-            txbx_replace.Name = "txbx_replace";
+            txtbx_replace.Location = new Point(312, 5);
-            txbx_replace.PlaceholderText = "Replace found text with";
+            txtbx_replace.Margin = new Padding(2);
-            txbx_replace.Size = new Size(197, 31);
+            txtbx_replace.Name = "txtbx_replace";
-            txbx_replace.TabIndex = 6;
+            txtbx_replace.PlaceholderText = "Replace found text with";
+            txtbx_replace.Size = new Size(139, 23);
+            txtbx_replace.TabIndex = 6;
             // 
             // btn_replace
             // 
-            btn_replace.Location = new Point(374, 6);
+            btn_replace.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+            btn_replace.Location = new Point(454, 4);
+            btn_replace.Margin = new Padding(2);
             btn_replace.Name = "btn_replace";
-            btn_replace.Size = new Size(112, 34);
+            btn_replace.Size = new Size(78, 24);
             btn_replace.TabIndex = 7;
             btn_replace.Text = "Replace found";
             btn_replace.UseVisualStyleBackColor = true;
             btn_replace.Click += btn_replace_Click;
             // 
+            // btn_sort
+            // 
+            btn_sort.Location = new Point(91, 5);
+            btn_sort.Name = "btn_sort";
+            btn_sort.Size = new Size(96, 23);
+            btn_sort.TabIndex = 8;
+            btn_sort.Text = "Sort Words";
+            btn_sort.UseVisualStyleBackColor = true;
+            btn_sort.Click += btn_sort_Click;
+            // 
             // Form1
             // 
-            AutoScaleDimensions = new SizeF(10F, 25F);
+            AutoScaleDimensions = new SizeF(7F, 15F);
             AutoScaleMode = AutoScaleMode.Font;
-            ClientSize = new Size(800, 450);
+            ClientSize = new Size(734, 416);
+            Controls.Add(btn_sort);
             Controls.Add(btn_replace);
-            Controls.Add(txbx_replace);
+            Controls.Add(txtbx_replace);
             Controls.Add(txtbx_text);
             Controls.Add(lbl_found);
             Controls.Add(btn_clear);
             Controls.Add(txtbx_find);
             Controls.Add(btn_find);
+            Margin = new Padding(2);
             Name = "Form1";
-            Text = "TextChecker";
+            Text = "Text Tool";
             ResumeLayout(false);
             PerformLayout();
         }
@@ -129,7 +151,8 @@
         private Button btn_clear;
         private Label lbl_found;
         private RichTextBox txtbx_text;
-        private TextBox txbx_replace;
+        private TextBox txtbx_replace;
         private Button btn_replace;
+        private Button btn_sort;
     }
 }

Metoder/Form1.cs

@@ -1,6 +1,9 @@
 using System;
+using System.Drawing;
 using System.Net.Security;
 using System.Reflection;
+using System.Text;
+using System.Windows.Forms;
 using static System.Net.Mime.MediaTypeNames;
 
 namespace Metoder
@@ -12,10 +15,19 @@ namespace Metoder
             InitializeComponent();
         }
 
+        // button binds
         private void btn_find_Click(object sender, EventArgs e)
         {
-            string searchWord = txtbx_find.Text;
+            string pattern = txtbx_find.Text;
-            Highlight(searchWord);
+            Highlight(pattern);
+        }
+
+        private void btn_replace_Click(object sender, EventArgs e)
+        {
+            string pattern = txtbx_find.Text;
+            string replacement = txtbx_replace.Text;
+
+            ReplaceFound(pattern, replacement);
         }
 
         private void btn_clear_Click(object sender, EventArgs e)
@@ -23,6 +35,13 @@ namespace Metoder
             lbl_found.Visible = false;
         }
 
+        private void btn_sort_Click(object sender, EventArgs e)
+        {
+            SortWords();
+        }
+
+
+        // methods
         void UpdateFindResult(int foundCount)
         {
             lbl_found.Visible = true;
@@ -37,18 +56,26 @@ namespace Metoder
             lbl_found.Text = foundCount.ToString() + suffix;
         }
 
-        (int start, int length) FindTextIndex(string text, int startIndex)
+        Dictionary<int, int> GetMatchesIndices(string pattern, string text)
         {
-            int start = (text.IndexOf(text, startIndex, StringComparison.OrdinalIgnoreCase));
+            Dictionary<int, int> dict = new Dictionary<int, int>();
-            if (start == -1) return (-1, 0);
 
-            return (start, text.Length);
+            if (pattern == "") return dict; // avoid errors, infinite loop
+
+            int index = 0;
+
+            // find and save start index and length of each occurance
+            while ((index = text.IndexOf(pattern, index, StringComparison.OrdinalIgnoreCase)) != -1)
+            {
+                dict[index] = pattern.Length;
+                index += pattern.Length;
             }
 
-        void Highlight(string word)
+            return dict;
-        {
+        }
-            if (word == "") return; // avoid errors, infinite loop
 
+        void Highlight(string pattern)
+        {
             RichTextBox richTextBox = txtbx_text;
             string text = richTextBox.Text;
 
@@ -57,17 +84,13 @@ namespace Metoder
             richTextBox.SelectionBackColor = richTextBox.BackColor;
 
             int found = 0;
-            int caret = richTextBox.SelectionStart; // set cursor
+            int caret = richTextBox.SelectionStart; // set cursor to start
 
-            var words = GetWords();
+            foreach (KeyValuePair<int, int> occurance in GetMatchesIndices(pattern, text))
-            int index = 0;
-
-            while ((index = text.IndexOf(word, index, StringComparison.OrdinalIgnoreCase)) != -1)
             {
-                richTextBox.Select(index, word.Length); // select word
+                richTextBox.Select(occurance.Key, occurance.Value); // select pattern occurance
-                richTextBox.SelectionBackColor = Color.LightBlue;
+                richTextBox.SelectionBackColor = Color.LightBlue; // highlight
-                found++; // count found
+                found++;
-                index = index + word.Length; // offset (ignore word next loop)
             }
 
             // reset cursor
@@ -77,17 +100,70 @@ namespace Metoder
             UpdateFindResult(found);
         }
 
+        void ReplaceFound(string pattern, string replacement)
+        {
+            string text = txtbx_text.Text;
+
+            Dictionary<int, int> matches = GetMatchesIndices(pattern, text);
+
+            if (matches.Count == 0) return;
+
+            string finalString = "";  // or string.Empty
+            int currentIndex = 0;
+
+            foreach (KeyValuePair<int, int> occurrence in matches)
+            {
+                // add text before occurrence
+                if (occurrence.Key > currentIndex)
+                {
+                    finalString += text.Substring(currentIndex, occurrence.Key - currentIndex);
+                }
+
+                // add replacement to result
+                finalString += replacement;
+
+                // move past occurrence
+                currentIndex = occurrence.Key + occurrence.Value;
+            }
+
+            // add remaining text
+            if (currentIndex < text.Length)
+            {
+                finalString += text.Substring(currentIndex);
+            }
+
+            txtbx_text.Text = finalString;
+        }
+
+        void SortWords()
+        {
+            List<string> words = GetSortedWords(GetWords());
+
+            string finalString = "";
+
+            // add each sorted word separated by spaces
+            foreach (string word in words)
+            {
+                finalString += word;
+                finalString += " ";
+            }
+
+            txtbx_text.Text = finalString;
+        }
+
+        List<string> GetSortedWords(List<string> words)
+        {
+            words.Sort();
+
+            return words;
+        }
+
         List<string> GetWords() // get list of words separated by spaces
         {
             string text = txtbx_text.Text;
-            string[] words = text.Split((char[])null, StringSplitOptions.RemoveEmptyEntries);
+            string[] words = text.Split((char[])null, StringSplitOptions.RemoveEmptyEntries); // split by spaces
 
             return words.ToList();
         }
-
-        private void btn_replace_Click(object sender, EventArgs e)
-        {
-
-        }
     }
 }