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 EfwControls.CustomControl
{ /// <summary> /// 前景或背景 /// </summary> public enum ForeOrBack { Fore, Back }/// <summary>
/// 方向 /// </summary> public enum Direction { LeftToRight, TopToButtom, }public partial class DataGrid : DevComponents.DotNetBar.Controls.DataGridViewX
{ /// <summary> /// 要画的线的信息列表 /// </summary> private List<DataGridViewDrawLineInfo> lines;/// <summary>
/// 是否允许点击ColumnHeader排序 /// </summary> private bool allowSortWhenClickColumnHeader; [Description("获取或设置是否允许点击ColumnHeader排序")] public bool AllowSortWhenClickColumnHeader { get { return allowSortWhenClickColumnHeader; } set { allowSortWhenClickColumnHeader = value; if (this.Columns != null) { for (int i = 0; i < this.Columns.Count; i++) { if (value == false) this.Columns[i].SortMode = DataGridViewColumnSortMode.NotSortable; else this.Columns[i].SortMode = DataGridViewColumnSortMode.Automatic; } } } }private bool _SeqVisible = true;
[Description("获取或设置是否显示序号")] public bool SeqVisible { get { return _SeqVisible; } set { _SeqVisible = value; this.RowHeadersVisible = _SeqVisible; } } public DataGrid() { InitializeComponent(); this.BackgroundColor = System.Drawing.Color.FromArgb(((int)(((byte)(227)))), ((int)(((byte)(239)))), ((int)(((byte)(255))))); this.GridColor = System.Drawing.Color.FromArgb(((int)(((byte)(227)))), ((int)(((byte)(239)))), ((int)(((byte)(255))))); this.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.EnableResizing; this.SelectionMode = DataGridViewSelectionMode.FullRowSelect; this.BorderStyle = BorderStyle.Fixed3D; this.AutoGenerateColumns = false; this.RowHeadersWidth = 25; this.AllowUserToResizeRows = false; this.HighlightSelectedColumnHeaders = false; this.SelectAllSignVisible = false; System.Windows.Forms.DataGridViewCellStyle cellstyle = new System.Windows.Forms.DataGridViewCellStyle(); cellstyle.BackColor = System.Drawing.Color.AliceBlue; this.AlternatingRowsDefaultCellStyle = cellstyle; }protected override void OnPaint(PaintEventArgs e)
{ base.OnPaint(e); if (lines != null) { foreach (DataGridViewDrawLineInfo line in lines) { float lineWidth = line.Width; if (lineWidth == 0) lineWidth = 1F; Color lineColor = line.Color; if (lineColor.IsEmpty) lineColor = this.DefaultCellStyle.ForeColor;if (line.DrawDirection == Direction.TopToButtom)
{ #region 上到下的线 Rectangle startRect = new Rectangle(); Rectangle endRect = new Rectangle(); try { startRect = this.GetCellDisplayRectangle(line.DrawLineOfRowColumnIndex, line.StartIndexOfRowColumn, true); endRect = this.GetCellDisplayRectangle(line.DrawLineOfRowColumnIndex, line.EndIndexOfRowColumn, true); } catch { throw new Exception("索引超出数组界限，原因可能：要绘制的线条的目标行或列已经被移除！"); } Point ptStart = new Point(startRect.Left + startRect.Width / 2, startRect.Top + startRect.Height / 2); Point ptEnd = new Point(endRect.Left + endRect.Width / 2, endRect.Bottom - endRect.Height / 2);Point ptStart_1 = new Point(ptStart.X + this.Columns[line.DrawLineOfRowColumnIndex].Width / 2, ptStart.Y);
Point ptEnd_1 = new Point(ptEnd.X + this.Columns[line.DrawLineOfRowColumnIndex].Width / 2, ptEnd.Y);if (ptStart.X == 0 && ptStart.Y == 0 && ptEnd.X == 0 && ptEnd.Y == 0)
continue;if (ptStart.X == 0 && ptStart.Y == 0)
{ ptStart.X = ptEnd.X; ptStart.Y = this.ColumnHeadersHeight; ptStart_1.X = 0; ptStart_1.Y = 0;}
if (ptEnd.X == 0 && ptEnd.Y == 0) { ptEnd.X = ptStart.X; ptEnd.Y = this.Height; ptEnd_1.X = 0; ptEnd_1.Y = 0; }Pen pen = new Pen(lineColor, lineWidth);
//开始端的横线 if (ptStart_1.X != 0 && ptStart_1.Y != 0) e.Graphics.DrawLine(pen, ptStart, ptStart_1); //竖线主体 e.Graphics.DrawLine(pen, ptStart, ptEnd); //结束端的横线 if (ptEnd_1.X != 0 && ptEnd.Y != 0) e.Graphics.DrawLine(pen, ptEnd, ptEnd_1); #endregion } else { #region 左到右 Rectangle startRect = new Rectangle(); Rectangle endRect = new Rectangle(); try { startRect = this.GetCellDisplayRectangle(line.StartIndexOfRowColumn, line.DrawLineOfRowColumnIndex, true); endRect = this.GetCellDisplayRectangle(line.EndIndexOfRowColumn, line.DrawLineOfRowColumnIndex, true); } catch { throw new Exception("索引超出数组界限，原因可能：要绘制的线条的目标行或列已经被移除！"); }Point ptStart = new Point(startRect.Left, startRect.Top + startRect.Height / 2);
Point ptEnd = new Point(endRect.Left + endRect.Width, endRect.Top + endRect.Height / 2);if (ptStart.X == 0 && ptStart.Y == 0 && ptEnd.X == 0 && ptEnd.Y == 0)
continue;if (ptStart.X == 0 && ptStart.Y == 0)
{ ptStart.X = ptStart.X = this.RowHeadersWidth; } if (ptEnd.X == 0 && ptEnd.Y == 0) { ptEnd.X = this.Width;}
Pen pen = new Pen(lineColor, lineWidth);e.Graphics.DrawLine(pen, ptStart, ptEnd);
#endregion
} } } }protected override void OnRowPostPaint(DataGridViewRowPostPaintEventArgs e)
{ if (RowHeadersVisible) { System.Drawing.Rectangle rectangle = new System.Drawing.Rectangle(e.RowBounds.Location.X, e.RowBounds.Location.Y, RowHeadersWidth - 4, e.RowBounds.Height); System.Windows.Forms.TextRenderer.DrawText(e.Graphics, (e.RowIndex + 1).ToString(), RowHeadersDefaultCellStyle.Font, rectangle, RowHeadersDefaultCellStyle.ForeColor, System.Windows.Forms.TextFormatFlags.VerticalCenter | System.Windows.Forms.TextFormatFlags.HorizontalCenter); } base.OnRowPostPaint(e); }protected override void OnColumnAdded(DataGridViewColumnEventArgs e)
{ if (allowSortWhenClickColumnHeader) e.Column.SortMode = DataGridViewColumnSortMode.Automatic; else e.Column.SortMode = DataGridViewColumnSortMode.NotSortable; base.OnColumnAdded(e); }protected override void OnMouseDown(MouseEventArgs e)
{ base.OnMouseDown(e); HitTestInfo htInfo = this.HitTest(e.X, e.Y); if (htInfo.Type == DataGridViewHitTestType.Cell) { if (htInfo.ColumnIndex != -1 && htInfo.RowIndex != -1) this.CurrentCell = this[htInfo.ColumnIndex, htInfo.RowIndex]; } else if (htInfo.Type == DataGridViewHitTestType.ColumnHeader) { if (this.Rows.Count > 0) { int rowIndex = 0; while (true) { if (this.Rows[rowIndex].Visible) break; else rowIndex++; } this.CurrentCell = this[htInfo.ColumnIndex, rowIndex]; } } else if (htInfo.Type == DataGridViewHitTestType.RowHeader) { int columnIndex = 0; while (true) { if (this.Columns[columnIndex].Visible) break; else columnIndex++; } this.CurrentCell = this[columnIndex, htInfo.RowIndex]; } } /// <summary> /// 在指定的位置划线 /// </summary> /// <param name="StartIndex">开始行或列</param> /// <param name="EndIndex">结束行或列</param> /// <param name="RowOrColumnIndex">行或列</param> /// <param name="direct">方向</param> public void DrawLines(List<DataGridViewDrawLineInfo> Lines) { lines = Lines; this.InvokePaint(this, new PaintEventArgs(this.CreateGraphics(), new Rectangle(0, 0, this.Width, this.Height))); } /// <summary> /// 增加一个线条对象 /// </summary> /// <param name="Line"></param> public void AddLine(DataGridViewDrawLineInfo Line) { if (lines == null) lines = new List<DataGridViewDrawLineInfo>(); lines.Add(Line); this.InvokePaint(this, new PaintEventArgs(this.CreateGraphics(), new Rectangle(0, 0, this.Width, this.Height))); } /// <summary> /// 移除一个线条对象 /// </summary> /// <param name="Line"></param> public void RemoveLine(DataGridViewDrawLineInfo Line) { if (lines != null) { DataGridViewDrawLineInfo needRemoveLine = null; foreach (DataGridViewDrawLineInfo line in lines) { if (line.StartIndexOfRowColumn == Line.StartIndexOfRowColumn && line.EndIndexOfRowColumn == Line.EndIndexOfRowColumn && line.DrawLineOfRowColumnIndex == Line.DrawLineOfRowColumnIndex && line.DrawDirection == Line.DrawDirection) { needRemoveLine = line; break; } } if (needRemoveLine != null) { lines.Remove(needRemoveLine); this.InvokePaint(this, new PaintEventArgs(this.CreateGraphics(), new Rectangle(0, 0, this.Width, this.Height))); } } } /// <summary> /// 清除所有线条 /// </summary> public void ClearLines() { lines = null; this.InvokePaint(this, new PaintEventArgs(this.CreateGraphics(), new Rectangle(0, 0, this.Width, this.Height))); } /// <summary> /// 设置行颜色 /// </summary> /// <param name="forceColor">前景色</param> /// <param name="BackColor">背景色</param> public void SetRowColor(int RowIndex, Color foreColor, Color backColor) { for (int ColIndex = 0; ColIndex < this.Columns.Count; ColIndex++) { //this.Rows[RowIndex].DefaultCellStyle this[ColIndex, RowIndex].Style.ForeColor = foreColor; this[ColIndex, RowIndex].Style.BackColor = backColor;}
} /// <summary> /// 设置行颜色 /// </summary> /// <param name="forceColor">前景色或者背景色</param> /// <param name="forceColor">指示是否是前景色</param> public void SetRowColor(int RowIndex, Color color, bool IsforceColor) { for (int ColIndex = 0; ColIndex < this.Columns.Count; ColIndex++) { if (IsforceColor) this[ColIndex, RowIndex].Style.ForeColor = color; else this[ColIndex, RowIndex].Style.BackColor = color;}
} /// <summary> /// 设置行颜色 /// </summary> /// <param name="forceColor">前景色</param> /// <param name="BackColor">背景色</param> public void SetRowColor(int RowIndex, Color color, ForeOrBack foreOrBack) { for (int ColIndex = 0; ColIndex < this.Columns.Count; ColIndex++) { if (foreOrBack == ForeOrBack.Fore) this[ColIndex, RowIndex].Style.ForeColor = color; else this[ColIndex, RowIndex].Style.BackColor = color; } } }/// <summary>
/// 网格画线所需的信息 /// </summary> public class DataGridViewDrawLineInfo { /// <summary> /// 待画线的开始行（列）的索引 /// </summary> private int startIndexOfRowColumn; /// <summary> /// 带画线的结束行（列）的索引 /// </summary> private int endIndexOfRowColumn; /// <summary> /// 需要画线的行（列）索引 /// </summary> private int drawLineOfRowColumnIndex; /// <summary> /// 画线的方向（自左到右 或者 自上到下） /// </summary> private Direction drawDirection; /// <summary> /// 线条编号 /// </summary> private int index; /// <summary> /// 线条颜色 /// </summary> private Color color; /// <summary> /// 线条宽度 /// </summary> private float width; /// <summary> /// 待画线的开始行（列）的索引 /// </summary> public int StartIndexOfRowColumn { get { return startIndexOfRowColumn; } set { startIndexOfRowColumn = value; } } /// <summary> /// 带画线的结束行（列）的索引 /// </summary> public int EndIndexOfRowColumn { get { return endIndexOfRowColumn; } set { endIndexOfRowColumn = value; } } /// <summary> /// 需要画线的行（列）索引 /// </summary> public int DrawLineOfRowColumnIndex { get { return drawLineOfRowColumnIndex; } set { drawLineOfRowColumnIndex = value; } } /// <summary> /// 画线的方向（自左到右 或者 自上到下） /// </summary> public Direction DrawDirection { get { return drawDirection; } set { drawDirection = value; } } /// <summary> /// 线条编号 /// </summary> public int Index { get { return index; } } /// <summary> /// 线条颜色 /// </summary> public Color Color { get { return color; } set { color = value; } } /// <summary> /// 线条宽度 /// </summary> public float Width { get { return width; } set { width = value; } } }}