就是把组织机构图做成思维导图的样子

本文是在别人的工作上进行了一定的更改，但是找不到这个链接了。

注：

1.组织结构图是用Graphics画的，因此他是一个图片。
2.本文给出了对图片进行点击时的一些响应事件。
先看一下结果图：
水平组织结构图（鼠标悬浮北京公司）

垂直组织机构图(鼠标点击上海公司）

C# 源代码给出如下

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;
using System.Drawing.Drawing2D;namespace DrawOrgChart
{public enum Orientation { Horizontal, Vertical };public class Tree<T>{Tree<T> _Parent = null;T _Content;List<Tree<T>> _Childs = new List<Tree<T>>();SizeF _Size;public Rectangle _Rec;private bool isHover = false;//指示鼠标是否在组织机构块上private bool isClick = false;//指示鼠标是否对组织结构进行了点击private int maxWidth;//组织机构图的最大宽度private int maxHeight;//组织结构图的最大高度private Pen pen = Pens.Blue;//画笔private Color clickColor = Color.BlueViolet;private int recHeight = 24;//矩形高度private int hInterval = 25;//水平间距private int vInterval = 16;//垂直间距private int borderWidth = 26;//画布两边宽度private int borderHeight = 26;//画布上下宽度private int verPadding = 5;//文字距边框的垂直距离private int horPadding = 10;//文字距边框的水平距离public bool IsHover { get { return isHover; } set { isHover = value; } }public bool IsClick { get { return isClick; } set { isClick = value; } }public int MaxWidth { get { return maxWidth; } set { maxWidth = value; } }public int MaxHeight { get { return maxHeight; } set { maxHeight = value; } }public int HInterval { get { return hInterval; } set { hInterval = value; } }public int VInterval { get { return vInterval; } set { vInterval = value; } }public Orientation OrientationMode = Orientation.Vertical;//用来指示组织机构图是水平的还是垂直的   public Tree(Tree<T> parent, T content){_Parent = parent;_Content = content;}public Tree<T> Add(T content){Tree<T> tree = new Tree<T>(this, content);_Childs.Add(tree);return tree;}public Tree<T> Parent { get { return _Parent; } }public T Content { get { return _Content; } set { _Content = value; } }public List<Tree<T>> Childs { get { return _Childs; } }public SizeF Size { get { return _Size; } set { _Size = value; } }public Rectangle Rec { get { return _Rec; } set { _Rec = value; } }/// <summary>/// 量测矩形框的完全放置字符串所需的大小/// </summary>/// <param name="g"></param>/// <param name="font"></param>/// <param name="addWidth">左右边距</param>/// <param name="addHeight">上下边距</param>void MeatureAllSize(Graphics g, Font font, int addWidth, int addHeight){string s = _Content.ToString();SizeF size = g.MeasureString("我爱你中国", font);//用来获取5个字时的边框，水平分布时边框的宽度需要一定if (OrientationMode == Orientation.Vertical)//画垂直图时执行{_Size = g.MeasureString(s, font);_Size.Width += addWidth;}else//画水平图时执行{StringBuilder sb = new StringBuilder();int i=0;//将内容按5个字换行while (i < s.Length){if (i>0&&i % 5 == 0){sb.Append("\r\n");}sb.Append(s[i]);i++;}if (s.Length > 5){_Size = g.MeasureString(sb.ToString(), font);}else{_Size = size;//小于5个字的情形}_Size.Width += addWidth;_Size.Height += addHeight;}foreach (Tree<T> tree in Childs)tree.MeatureAllSize(g, font, addWidth,addHeight);//为所有节点计算边框}/// <summary>/// 获取扁平化结构，画图的思想是将组织机构图的每一代节点放在一个列表里面，然后一个列表一个列表画/// </summary>/// <returns></returns>List<List<Tree<T>>> GetTreeLayers(){List<List<Tree<T>>> layers = new List<List<Tree<T>>>();GetTreeLayers(layers, new List<Tree<T>>(new Tree<T>[] { this }), 0);return layers;}void GetTreeLayers(List<List<Tree<T>>> layers, List<Tree<T>> childs, int level){if (childs.Count == 0) return;if (layers.Count <= level) layers.Add(new List<Tree<T>>());for (int i = 0; i < childs.Count; i++){layers[level].Add(childs[i]);GetTreeLayers(layers, childs[i].Childs, level + 1);}}/// <summary>/// 设置显示区域（从最后一层最左或最后一列最上开始）/// </summary>/// <param name="level"></param>/// <param name="height"></param>/// <param name="interval"></param>/// <param name="left"></param>void SetRectangle(int level, int height, int hInterval, int vInterval, int leftOrTop, Orientation orientation){int index = 0;if (Parent != null) index = Parent.Childs.IndexOf(this);if (orientation == Orientation.Vertical)//垂直时{int left = leftOrTop;if (Childs.Count == 0){// 没有儿子，就向前靠if (left > 0) left += hInterval;}else{// 有儿子，就在儿子中间int centerX = (Childs[0].Rec.Left + Childs[Childs.Count - 1].Rec.Right) / 2;left = centerX - (int)_Size.Width / 2;// 并且不能和前面的重复，如果重复，联同子孙和子孙的右边节点右移if (Parent != null && index > 0){int ex = (Parent.Childs[index - 1].Rec.Right + hInterval) - left;if (index > 0 && ex > 0){for (int i = index; i < Parent.Childs.Count; i++)Parent.Childs[i].RightChilds(ex);left += ex;}}}_Rec = new Rectangle(left, (height + vInterval) * level, (int)_Size.Width, height);}else//水平时{int top = leftOrTop;if (Childs.Count == 0){// 没有儿子，就向前靠if (top > 0) top += vInterval;}else{// 有儿子，就在儿子中间int centerX = (Childs[0].Rec.Top + Childs[Childs.Count - 1].Rec.Bottom) / 2;top = centerX - (int)_Size.Height / 2;// 并且不能和前面的重复，如果重复，联同子孙和子孙的右边节点右移if (Parent != null && index > 0){int ex = (Parent.Childs[index - 1].Rec.Bottom + vInterval) - top;if (index > 0 && ex > 0){for (int i = index; i < Parent.Childs.Count; i++)Parent.Childs[i].DownChilds(ex);top += ex;}}}_Rec = new Rectangle(((int)_Size.Width+hInterval)*level, top, (int)_Size.Width, (int)_Size.Height);}}/// <summary>/// 所有子孙向右平移/// </summary>/// <param name="ex"></param>void RightChilds(int ex){Rectangle rec;for (int i = 0; i < _Childs.Count; i++){rec = _Childs[i].Rec;rec.Offset(ex, 0);_Childs[i].Rec = rec;_Childs[i].RightChilds(ex);}}/// <summary>/// 所有子孙向下平移/// </summary>/// <param name="ex"></param>void DownChilds(int ex){Rectangle rec;for (int i = 0; i < _Childs.Count; i++){rec = _Childs[i].Rec;rec.Offset(0, ex);_Childs[i].Rec = rec;_Childs[i].DownChilds(ex);}}void Offset(int x, int y){_Rec.Offset(x, y);for (int i = 0; i < _Childs.Count; i++)_Childs[i].Offset(x, y);}public Bitmap DrawAsImage(){return DrawAsImage(pen, new Font("宋体", 10.5f), recHeight, horPadding,verPadding, hInterval, vInterval, borderWidth, borderHeight,OrientationMode);}public Bitmap DrawAsImage(Pen pen, Font font, int h, int horPadding,int verPadding,int horInterval, int verInterval, int borderWidth,int borderHeight,Orientation orientation){Bitmap bmp = new Bitmap(1, 1);Graphics g = Graphics.FromImage(bmp);// 把树扁平化List<List<Tree<T>>> layers = GetTreeLayers();// 算出每个单元的大小MeatureAllSize(g, font, horPadding,verPadding);g.Dispose();bmp.Dispose();if (OrientationMode == Orientation.Vertical)//水平时{// 从最后一层开始排列//int left = 0;for (int i = layers.Count - 1; i >= 0; i--){int left = 0;for (int j = 0; j < layers[i].Count; j++){layers[i][j].SetRectangle(i, h, horInterval, verInterval, left, OrientationMode);left = layers[i][j].Rec.Right;}}Offset(borderWidth, borderWidth);// 获取画布需要的大小maxHeight = (h + verInterval) * layers.Count - verInterval + borderWidth * 2;maxWidth = 0;for (int i = layers.Count - 1; i >= 0; i--){for (int j = 0; j < layers[i].Count; j++){if (layers[i][j].Rec.Right > maxWidth)maxWidth = layers[i][j].Rec.Right;}}maxWidth += borderWidth; // 边宽// 画bmp = new Bitmap(maxWidth, maxHeight);}else//水平时{// 从最后一列开始排列for (int i = layers.Count - 1; i >= 0; i--){int top = 0;for (int j = 0; j < layers[i].Count; j++){layers[i][j].SetRectangle(i, h, horInterval, verInterval, top, OrientationMode);top = layers[i][j].Rec.Bottom;}}Offset(borderWidth, borderWidth);// 获取画布需要的大小maxHeight=0;maxWidth = 0;for (int i = layers.Count - 1; i >= 0; i--){for (int j = 0; j < layers[i].Count; j++){if (layers[i][j].Rec.Right > maxWidth)maxWidth = layers[i][j].Rec.Right;if(layers[i][j].Rec.Bottom>maxHeight)maxHeight = layers[i][j].Rec.Bottom;}}maxWidth += borderWidth; // 边宽maxHeight += borderHeight;// 画bmp = new Bitmap(maxWidth, maxHeight);}g = Graphics.FromImage(bmp);//这里主要针对贝塞尔曲线的抗锯齿，但是效果不怎么理想g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;  //图片柔顺模式选择            g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBilinear;//高质量g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;//再加一点g.Clear(Color.White);StringFormat format = (StringFormat)StringFormat.GenericDefault.Clone();format.Alignment = StringAlignment.Center;format.LineAlignment = StringAlignment.Far;Rectangle rec, recParent;for (int i = 0; i < layers.Count; i++){for (int j = 0; j < layers[i].Count; j++){// 画字rec = (Rectangle)layers[i][j].Rec;//矩形内矩形Rectangle rec2 = new Rectangle(rec.Left + 2, rec.Top + 2, rec.Width - 4, rec.Height - 4);g.DrawRectangle(pen, rec);//画阴影g.DrawLine(Pens.DimGray, new Point(rec.Left + 1, rec.Bottom + 1), new Point(rec.Right + 1, rec.Bottom + 1));g.DrawLine(Pens.DimGray, new Point(rec.Right + 1, rec.Top + 1), new Point(rec.Right + 1, rec.Bottom + 1));g.DrawLine(Pens.Gray, new Point(rec.Left + 2, rec.Bottom + 2), new Point(rec.Right + 2, rec.Bottom + 2));g.DrawLine(Pens.Gray, new Point(rec.Right + 2, rec.Top + 2), new Point(rec.Right + 2, rec.Bottom + 2));//g.DrawEllipse(pen, rec);if (layers[i][j].isHover && !layers[i][j].isClick)//进入矩形时执行{g.FillRectangle(new LinearGradientBrush(rec, Color.White, Color.LightBlue, LinearGradientMode.ForwardDiagonal), rec);//g.FillEllipse(new SolidBrush(hoverColor), rec);}if (layers[i][j].isHover && layers[i][j].isClick)//点击矩形时执行{g.DrawRectangle(Pens.Black, rec2);g.FillRectangle(new LinearGradientBrush(rec, Color.White, Color.AliceBlue, LinearGradientMode.ForwardDiagonal), rec2);//g.FillEllipse(new SolidBrush(hoverColor), rec);}g.DrawString(layers[i][j].Content.ToString(), font, new SolidBrush(pen.Color),rec, format);// 画到父亲的线if (layers[i][j].Parent != null){recParent = layers[i][j].Parent.Rec;                        //画贝塞尔线if (orientation == Orientation.Vertical){g.DrawBezier(pen, new Point(rec.Left + rec.Width / 2, rec.Top), new Point(rec.Left + rec.Width / 2, rec.Top - verInterval / 2), new Point(recParent.Left + recParent.Width / 2, recParent.Bottom + verInterval / 2), new Point(recParent.Left + recParent.Width / 2, recParent.Bottom));}else{g.DrawBezier(pen, new Point(rec.Left, rec.Top + rec.Height / 2), new Point(rec.Left - horInterval / 2, rec.Top + rec.Height / 2), new Point(recParent.Right + horInterval / 2, recParent.Bottom - recParent.Height / 2), new Point(recParent.Right, recParent.Bottom - recParent.Height / 2));}}}}g.Flush();g.Dispose();return bmp;}}
}

form程序如下：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;namespace DrawOrgChart
{public partial class Form1 : Form{public Form1(){InitializeComponent();}List<Tree<string>> nodes = new List<Tree<string>>();Tree<string> tree;private void Form1_Load(object sender, EventArgs e){cmbOrientation.SelectedIndex = 0;tree = new Tree<string>(null, "董事会");nodes.Add(tree);nodes.Add(tree.Add("董事秘书室特殊机构"));nodes.Add(tree.Add("北京公司"));nodes.Add(tree.Add("上海公司"));nodes.Add(tree.Add("山西公司"));nodes.Add(tree.Childs[1].Add("总经理办公室"));nodes.Add(tree.Childs[1].Add("财务部"));nodes.Add(tree.Childs[1].Add("销售部"));nodes.Add(tree.Childs[2].Add("上海销售部"));nodes.Add(tree.Childs[2].Add("上海秘书处"));nodes.Add(tree.Childs[3].Add("太原分部"));}      private void pictureBox1_MouseMove(object sender, MouseEventArgs e){Point p = e.Location;double scaleX = (double)tree.MaxWidth / pictureBox1.Width;double scaleY = (double)tree.MaxHeight / pictureBox1.Height;switch (pictureBox1.SizeMode){case PictureBoxSizeMode.Zoom:double scale = scaleX < scaleY ? scaleY : scaleX;if (scale == scaleX){p.Y = (int)((p.Y - (pictureBox1.Height - tree.MaxHeight / scale) / 2) * scale);p.X = (int)(p.X * scale);}else{p.X = (int)((p.X - (pictureBox1.Width - tree.MaxWidth / scale) / 2) * scale);p.Y = (int)(p.Y * scale);}break;case PictureBoxSizeMode.StretchImage:p.X = (int)(p.X * scaleX);p.Y = (int)(p.Y * scaleY);break;}bool changed = false;foreach (var node in nodes){if (node.Rec.Contains(p)){if (!node.IsHover){node.IsHover = true;changed = true;}break;}else{if (node.IsHover){node.IsHover = false;changed = true;}}}if (changed){Bitmap bmp = tree.DrawAsImage();pictureBox1.Image = bmp;pictureBox1.Refresh();}}private void pictureBox1_MouseClick(object sender, MouseEventArgs e){            Point p = pictureBox1.PointToClient(MousePosition);double scaleX = (double)tree.MaxWidth / pictureBox1.Width;double scaleY = (double)tree.MaxHeight / pictureBox1.Height;switch (pictureBox1.SizeMode){case PictureBoxSizeMode.Zoom:double scale = scaleX < scaleY ? scaleY : scaleX;if (scale == scaleX){p.Y = (int)((p.Y - (pictureBox1.Height - tree.MaxHeight / scale) / 2) * scale);p.X = (int)(p.X * scale);}else{p.X = (int)((p.X - (pictureBox1.Width - tree.MaxWidth / scale) / 2) * scale);p.Y = (int)(p.Y * scale);}break;case PictureBoxSizeMode.StretchImage:p.X = (int)(p.X * scaleX);p.Y = (int)(p.Y * scaleY);break;}Tree<string> nodeB = null;bool rectClicked = false;foreach (var node in nodes){if (node.Rec.Contains(p)){nodeB = node;                    rectClicked = true;break;}}            if (e.Button == MouseButtons.Left && e.Clicks == 1){if (rectClicked){Form2 frm = new Form2();frm.Text = nodeB.Content.ToString();frm.Show();//MessageBox.Show(nodeB.Content.ToString());}}}private void contextMenuStrip1_Opening(object sender, CancelEventArgs e){pictureBox1.ContextMenuStrip.Enabled = true;Point p = pictureBox1.PointToClient(MousePosition);double scaleX = (double)tree.MaxWidth / pictureBox1.Width;double scaleY = (double)tree.MaxHeight / pictureBox1.Height;switch (pictureBox1.SizeMode){case PictureBoxSizeMode.Zoom:double scale = scaleX < scaleY ? scaleY : scaleX;if (scale == scaleX){p.Y = (int)((p.Y - (pictureBox1.Height - tree.MaxHeight / scale) / 2) * scale);p.X = (int)(p.X * scale);}else{p.X = (int)((p.X - (pictureBox1.Width - tree.MaxWidth / scale) / 2) * scale);p.Y = (int)(p.Y * scale);}break;case PictureBoxSizeMode.StretchImage:p.X = (int)(p.X * scaleX);p.Y = (int)(p.Y * scaleY);break;}bool rectClicked = false;            foreach (var node in nodes){if (node.Rec.Contains(p)){rectClicked = true;break;}}if (!rectClicked){contextMenuStrip1.Items[0].Enabled = true;contextMenuStrip1.Items[1].Enabled = false;contextMenuStrip1.Items[2].Enabled = false;}else{contextMenuStrip1.Items[0].Enabled = true;contextMenuStrip1.Items[1].Enabled = true;contextMenuStrip1.Items[2].Enabled = true;}}private void pictureBox1_MouseDown(object sender, MouseEventArgs e){if (e.Button == MouseButtons.Left){Point p = pictureBox1.PointToClient(MousePosition);double scaleX = (double)tree.MaxWidth / pictureBox1.Width;double scaleY = (double)tree.MaxHeight / pictureBox1.Height;switch (pictureBox1.SizeMode){case PictureBoxSizeMode.Zoom:double scale = scaleX < scaleY ? scaleY : scaleX;if (scale == scaleX){p.Y = (int)((p.Y - (pictureBox1.Height - tree.MaxHeight / scale) / 2) * scale);p.X = (int)(p.X * scale);}else{p.X = (int)((p.X - (pictureBox1.Width - tree.MaxWidth / scale) / 2) * scale);p.Y = (int)(p.Y * scale);}break;case PictureBoxSizeMode.StretchImage:p.X = (int)(p.X * scaleX);p.Y = (int)(p.Y * scaleY);break;}Tree<string> nodeB = null;bool rectClicked = false;foreach (var node in nodes){if (node.Rec.Contains(p)){nodeB = node;rectClicked = true;break;}}if (rectClicked){nodeB.IsClick = true;Bitmap bmp = tree.DrawAsImage();pictureBox1.Image = bmp;pictureBox1.Refresh();}}}private void pictureBox1_MouseUp(object sender, MouseEventArgs e){if (e.Button == MouseButtons.Left){Point p = pictureBox1.PointToClient(MousePosition);double scaleX = (double)tree.MaxWidth / pictureBox1.Width;double scaleY = (double)tree.MaxHeight / pictureBox1.Height;switch (pictureBox1.SizeMode){case PictureBoxSizeMode.Zoom:double scale = scaleX < scaleY ? scaleY : scaleX;if (scale == scaleX){p.Y = (int)((p.Y - (pictureBox1.Height - tree.MaxHeight / scale) / 2) * scale);p.X = (int)(p.X * scale);}else{p.X = (int)((p.X - (pictureBox1.Width - tree.MaxWidth / scale) / 2) * scale);p.Y = (int)(p.Y * scale);}break;case PictureBoxSizeMode.StretchImage:p.X = (int)(p.X * scaleX);p.Y = (int)(p.Y * scaleY);break;}Tree<string> nodeB = null;bool rectClicked = false;foreach (var node in nodes){if (node.Rec.Contains(p)){nodeB = node;rectClicked = true;break;}}if (rectClicked){nodeB.IsClick = false;Bitmap bmp = tree.DrawAsImage();pictureBox1.Image = bmp;pictureBox1.Refresh();}}}private void btn1_Click(object sender, EventArgs e){switch (cmbOrientation.SelectedItem.ToString()) {case "水平":foreach(var tree in nodes)tree.OrientationMode = Orientation.Horizontal;break;case "垂直":foreach(var tree in nodes)tree.OrientationMode = Orientation.Vertical;break;}int hinterval,vinterval;if (!int.TryParse(txtHinterval.Text, out hinterval) || !int.TryParse(txtVinterval.Text, out vinterval)){MessageBox.Show("横向间距和纵向间距只能设置为整数");return;}else {tree.HInterval = hinterval;tree.VInterval = vinterval;}Bitmap bmp = tree.DrawAsImage();pictureBox1.Image = bmp;pictureBox1.SizeMode = PictureBoxSizeMode.Zoom;pictureBox1.Refresh();}       }
}

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Winform 做一个组织机构思维导图

就是把组织机构图做成思维导图的样子

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