实例介绍
【实例简介】动态添加图标 示例源码
【实例截图】
【核心代码】
using System; using System.IO; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using Newtonsoft.Json; using Newtonsoft.Json.Linq; namespace WindowsFormsApplication1 { public partial class Form1 : Form { private int _row = 0; private int _col = 0; private Label _selectedlabel = null; private List<string> _cellList = new List<string>(); private Point _offset = new Point(250, 25); public Form1() { InitializeComponent(); } private void newToolStripMenuItem_Click(object sender, EventArgs e) { Form2 newForm = new Form2(); if(newForm.ShowDialog() == DialogResult.OK) { System.Collections.IEnumerator ie = imageList1.Images.GetEnumerator(); int index = -1; while (ie.MoveNext()) { index ; treeView1.Nodes[index].Text = string.Format("{0:d}", 0); } Form1_initCells(newForm.Row, newForm.Col); } } private void Form1_Load(object sender, EventArgs e) { //treeView1.Nodes.Add(new TreeNode("ICON")); if (this.treeView1.Nodes.Count > 0) treeView1.Nodes[0].Expand(); openFileDialog1.InitialDirectory = Application.StartupPath; openFileDialog2.InitialDirectory = Application.StartupPath; //imageList1.ImageSize = new Size(40, 40); //pictureBox1.Image = imageList1.Images[4]; //pictureBox1.Image.Size = new Size(40, 40); } private void Form1_removeCells() { foreach (string str in _cellList) { this.Controls.RemoveByKey(str); } _cellList.Clear(); } private void Form1_initCells(int row, int col) { _row = row; _col = col; Form1_removeCells(); Label [,] labels = new Label [row, col]; for(int i=0; i<row; i ) { for(int j=0; j<col; j ) { labels[i, j] = new Label(); labels[i, j].BorderStyle = BorderStyle.FixedSingle; labels[i, j].Location = new Point(_offset.X j*40, _offset.Y i*40); labels[i,j].Height = 40; labels[i,j].Width = 40; labels[i,j].Name = "Label[" i "," j "]"; //labels[i,j].Image = this.imageList1.Images[3]; labels[i, j].BackColor = Color.Wheat; labels[i, j].Click = LabelClicked; labels[i, j].AutoEllipsis = true; this.Controls.Add(labels[i, j]); _cellList.Add(labels[i,j].Name); } } } private void LabelClicked(object sender, EventArgs e) { Label label = sender as Label; MouseEventArgs ev = e as MouseEventArgs; _selectedlabel = label; if(ev.Button == MouseButtons.Right) { if (_selectedlabel.Image != null) { System.Collections.IEnumerator ie = imageList1.Images.GetEnumerator(); int index = -1; int n = 0; while (ie.MoveNext()) { index ; Image image = ie as Image; if (_selectedlabel.Text.Equals(index.ToString())) { int.TryParse(treeView1.Nodes[index].Text, out n); treeView1.Nodes[index].Text = string.Format("{0:d}", n - 1); _selectedlabel.Text = ""; _selectedlabel.Image = null; break; } } } return; } if (_selectedlabel != null && treeView1.SelectedNode != null && treeView1.SelectedNode.SelectedImageIndex >= 0) { //_selectedlabel.Image = imageList1.Images[treeView1.SelectedNode.SelectedImageIndex].GetThumbnailImage(60, 60, null, new IntPtr()); if(_selectedlabel.Image != null) { System.Collections.IEnumerator ie = imageList1.Images.GetEnumerator(); int index = -1; int n = 0; while(ie.MoveNext()) { index ; Image image = ie as Image; if(_selectedlabel.Text.Equals(index.ToString())) { int.TryParse(treeView1.Nodes[index].Text, out n); treeView1.Nodes[index].Text = string.Format("{0:d}", n - 1); break; } } } _selectedlabel.Image = imageList1.Images[treeView1.SelectedNode.SelectedImageIndex]; _selectedlabel.Text = string.Format("{0:d}", treeView1.SelectedNode.SelectedImageIndex); } int m = 0; int.TryParse(treeView1.SelectedNode.Text, out m); treeView1.SelectedNode.Text = string.Format("{0:d}", m 1); } private void exitToolStripMenuItem_Click(object sender, EventArgs e) { Application.Exit(); } private void treeView1_AfterSelect(object sender, TreeViewEventArgs e) { //if (_selectedlabel != null && treeView1.SelectedNode.SelectedImageIndex >= 0) // _selectedlabel.Image = imageList1.Images[treeView1.SelectedNode.SelectedImageIndex]; //MessageBox.Show(treeView1.SelectedImageKey); } private void setIconsToolStripMenuItem_Click(object sender, EventArgs e) { clearIconsToolStripMenuItem_Click(null, null); if (openFileDialog1.ShowDialog() == DialogResult.OK) { int n=0; foreach (string s in openFileDialog1.FileNames) { imageList1.Images.Add(Image.FromFile(s)); TreeNode tn = new TreeNode("treeNode" n, n, n); tn.Text = "0"; treeView1.Nodes.Add(tn); n ; } } } private void loadIcons() { } private void clearIconsToolStripMenuItem_Click(object sender, EventArgs e) { imageList1.Images.Clear(); treeView1.Nodes.Clear(); } private void openToolStripMenuItem_Click(object sender, EventArgs e) { if (openFileDialog2.ShowDialog() == DialogResult.OK) { System.Collections.IEnumerator ie = treeView1.Nodes.GetEnumerator(); int index = -1; while (ie.MoveNext()) { index ; treeView1.Nodes[index].Text = string.Format("{0:d}", 0); } testJsonRead(openFileDialog2.FileName); } } private void saveToolStripMenuItem_Click(object sender, EventArgs e) { if(saveFileDialog1.ShowDialog() == DialogResult.OK) testJsonWrite(saveFileDialog1.FileName); } private void testJsonRead(string path) { Form1_removeCells(); JsonReader reader = new JsonTextReader(new StringReader(System.IO.File.ReadAllText(path))); int index = -1; while (reader.Read()) { Console.WriteLine(reader.TokenType "\t\t" reader.ValueType "\t\t" reader.Value); if (reader.TokenType.Equals(JsonToken.PropertyName) && reader.Value.ToString().Equals("row")) { reader.Read(); _row = int.Parse(reader.Value.ToString()); Console.WriteLine("row is : " _row); } else if (reader.TokenType.Equals(JsonToken.PropertyName) && reader.Value.Equals("col")) { reader.Read(); _col = int.Parse(reader.Value.ToString()); Console.WriteLine("col is : " _col); } else if (reader.TokenType.Equals(JsonToken.PropertyName) && reader.Value.Equals("id")) { reader.Read(); index ; if(reader.Value.ToString().Equals(string.Empty)) addCell(index, -1); else addCell(index, int.Parse(reader.Value.ToString())); } } } private void addCell(int index, int icon) { int i = index / _col; int j = index % _col; Label label = new Label(); label.BorderStyle = BorderStyle.FixedSingle; label.Location = new Point(_offset.X j * 40, _offset.Y i * 40); label.Height = 40; label.Width = 40; label.Name = "Label[" i "," j "]"; label.BackColor = Color.Wheat; label.Click = LabelClicked; label.AutoEllipsis = true; this.Controls.Add(label); _cellList.Add(label.Name); if (icon >= 0) { label.Image = this.imageList1.Images[icon]; treeView1.Nodes[icon].Text = string.Format("{0:d}", int.Parse(treeView1.Nodes[icon].Text) 1); } } private void testJsonWrite(string path) { StringWriter sw = new StringWriter(); JsonWriter writer = new JsonTextWriter(sw); writer.WriteStartObject(); writer.WritePropertyName("map"); writer.WriteStartObject(); writer.WritePropertyName("row"); writer.WriteValue(_row); writer.WritePropertyName("col"); writer.WriteValue(_col); writer.WritePropertyName("data"); writer.WriteStartArray(); for (int i = 0; i < _row; i ) { for (int j = 0; j < _col; j ) { writer.WriteStartObject(); writer.WritePropertyName("id"); string name = "Label[" i "," j "]"; Label lbl =this.Controls[name] as Label; Console.WriteLine(name " : " lbl.Text); writer.WriteValue(lbl.Text); writer.WriteEndObject(); } } writer.WriteEndArray(); writer.WriteEndObject(); writer.WriteEndObject(); writer.Flush(); string jsonText = sw.GetStringBuilder().ToString(); System.IO.File.WriteAllText(path, jsonText); } private void viewHelpToolStripMenuItem_Click(object sender, EventArgs e) { Form3 helpForm = new Form3(); helpForm.Show(); } private void resetToolStripMenuItem_Click(object sender, EventArgs e) { System.Collections.IEnumerator ie = treeView1.Nodes.GetEnumerator(); int index = -1; while (ie.MoveNext()) { index ; treeView1.Nodes[index].Text = string.Format("{0:d}", 0); } for (int i = 0; i < _row; i ) { for (int j = 0; j < _col; j ) { string name = "Label[" i "," j "]"; Label lbl = this.Controls[name] as Label; lbl.Text = ""; lbl.Image = null; } } } private void Form1_Resize(object sender, EventArgs e) { treeView1.SetBounds(treeView1.Location.X, treeView1.Location.Y, treeView1.Size.Width, this.Size.Height - 100); } } }
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