C#仿QQ皮肤－DataGridView 最新1.2版

阅读全文：http://www.sufeinet.com/thread-598-1-1.html

 

先来看看效果吧

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升级报告说明

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   这次升级的功能主有

   1.对鼠标跟随效果进行的优化

   2.增加了行号的功能方便查找数据

   3.增加一个菜单功能，目前里面有的功能主要是冻结和恢复首行和首列功能。还有导出Excel和全选功能。

 

实现说明

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   首先我们要准备两张图片，用来做什么呢，自然是用来做菜单使用的。我是临时整理了两张看着不怎么好看，不过功能不影响大家下载源代码后要吧自行修改的漂亮一些。

 

   然后我们第一步要做的是怎么样把这个图片添加到DataGridView里面去。在添加这个控件 之前呢我们要做两件事情，第一就是New一个左键菜单，绑定到这个菜单Button，

第二步是给这个button注册一个单击事件看下面的代码。

 

     #region  注册菜单项

             // 在这里添加菜单项
            cmsleft.Items.Add(createItem( " clumnsFist " ,  " 冻结首列 " ,  new  EventHandler(clumnsFist_Click)));
            cmsleft.Items.Add(createItem( " rowsFist " ,  " 冻结首行 " ,  new  EventHandler(rowsFistFist_Click)));
            cmsleft.Items.Add(createItem( " officeExeceout " ,  " 导出到Excel " ,  new  EventHandler(officeExeceout_Click)));
            cmsleft.Items.Add(createItem( " fullSelect " ,  " 全选 " ,  new  EventHandler(fullSelect_Click)));
             #endregion

             #region  绑定菜单

            Button objpb  =   new  Button();
            objpb.BackgroundImage  =  bxyztSkin.Properties.Resources.caidan;
            objpb.Location  =   new  Point(objpb.Location.X  +   9 , objpb.Location.Y  +   4 );
            objpb.Width  =   17 ;
            objpb.Text  =   "" ;
             // 绑定一个右键菜单
            objpb.ContextMenuStrip  =  cmsleft;
            objpb.Cursor  =  System.Windows.Forms.Cursors.Hand;
            objpb.Height  =   17 ;
            objpb.BackgroundImageLayout  =  ImageLayout.Stretch;
            objpb.FlatStyle  =  FlatStyle.Popup;
             // 在添加前先注册一个事件
            objpb.Click  +=   new  EventHandler(objpb_Click);
             this .Controls.Add(objpb);

             #endregion

 

 这样的话我们在运行这个控件时就可以看到菜单效果了，下面我们来分别对事件进行一下处理吧

1.Button单击事件

         // Button单击事件
         void  objpb_Click( object  sender, EventArgs e)
        {
            Button objbootn  =  (Button)sender;
             // 显示菜单的位置
            objbootn.ContextMenuStrip.Show(Control.MousePosition.X, Control.MousePosition.Y);
        }

2.全选事件

    // 全选
         void  fullSelect_Click( object  sender, EventArgs e)
        {
             this .SelectAll();
        }

3.导出到Excel事件

         // 导出到Excel
         void  officeExeceout_Click( object  sender, EventArgs e)
        {
             if  ( this .Rows.Count  >   0 )
            {
                OfficeManagerMentServices.DataGridViewToExcel( this );
            }
        }

OfficeManagerMentServices类如下

View Code

using  System;
using  System.Collections.Generic;
using  System.Text;
using  System.Windows.Forms;
using  System.IO;

namespace  bxyztSkin.csList
{
    public    class  OfficeManagerMentServices
    {
         ///   <summary>    
         ///  将 DataGridView的数据导出Excel
         ///   </summary>    
         ///   <remarks>    
         ///  using System.IO;   
         ///   </remarks>    
         ///   <param name="dgv"></param>    
         public   static   void  DataGridViewToExcel(bxyztSkin.Editors.CDataGridView dgv)
        {

            SaveFileDialog dlg  =   new  SaveFileDialog();
            dlg.Filter  =   " Execl files (*.xls)|*.xls " ;
            dlg.CheckFileExists  =   false ;
            dlg.CheckPathExists  =   false ;
            dlg.FilterIndex  =   0 ;
            dlg.RestoreDirectory  =   true ;
            dlg.CreatePrompt  =   false ;
            dlg.Title  =   " 保存为Excel文件 " ;
            dlg.FileName  =  DateTime.Now.Ticks.ToString().Trim();

             if  (dlg.ShowDialog()  ==  DialogResult.OK)
            {
                Stream myStream;
                myStream  =  dlg.OpenFile();
                StreamWriter sw  =   new  StreamWriter(myStream, System.Text.Encoding.GetEncoding( - 0 ));
                 string  columnTitle  =   "" ;
                 try
                {
                     // 写入列标题   
                     for  ( int  i  =   0 ; i  <  dgv.ColumnCount; i ++ )
                    {
                         if  (i  >   0 )
                        {
                            columnTitle  +=   " \t " ;
                        }
                        columnTitle  +=  dgv.Columns[i].HeaderText;
                    }
                    sw.WriteLine(columnTitle);

                     // 写入列内容   
                     for  ( int  j  =   0 ; j  <  dgv.Rows.Count; j ++ )
                    {
                         string  columnValue  =   "" ;
                         for  ( int  k  =   0 ; k  <  dgv.Columns.Count; k ++ )
                        {
                             if  (k  >   0 )
                            {
                                columnValue  +=   " \t " ;
                            }
                             if  (dgv.Rows[j].Cells[k].Value  ==   null )
                                columnValue  +=   "" ;
                             else
                                columnValue  +=  dgv.Rows[j].Cells[k].Value.ToString().Trim();
                        }
                        sw.WriteLine(columnValue);
                    }
                    sw.Close();
                    myStream.Close();
                }
                 catch  (Exception e)
                {
                    MessageBox.Show(e.ToString());
                }
                 finally
                {
                    sw.Close();
                    myStream.Close();
                }
            }
        }
    }
}

4.冻结/恢复首列

 

// 冻结/恢复首列
         void  clumnsFist_Click( object  sender, EventArgs e)
        {
             if  ( this .Columns.Count  >=   1 )
            {
                 for  ( int  i  =   0 ; i  <   this .Columns.Count; i ++ )
                {
                     if  ( this .Columns[i].Visible  ==   true )
                    {
                         if  ( this .Columns[i].Frozen)
                        {
                             this .Columns[i].Frozen  =   false ;
                            ((ToolStripMenuItem)sender).Text  =   " 冻结首列 " ;
                             return ;
                        }
                         else
                        {
                             this .Columns[i].Frozen  =   true ;
                            ((ToolStripMenuItem)sender).Text  =   " 恢复首列 " ;
                             return ;
                        }
                    }
                }
            }
        }

5.冻结/恢复首行

   // 冻结/恢复首行
         void  rowsFistFist_Click( object  sender, EventArgs e)
        {
             if  ( this .Rows.Count  >=   1 )
            {
                 if  ( this .Rows[ 0 ].Frozen)
                {
                     this .Rows[ 0 ].Frozen  =   false ;
                    ((ToolStripMenuItem)sender).Text  =   " 冻结首行 " ;
                }
                 else
                {
                     this .Rows[ 0 ].Frozen  =   true ;
                    ((ToolStripMenuItem)sender).Text  =   " 解冻首行 " ;
                }
            }
        }

还有一个提供创建新的菜单项的方法

  ///   <summary>
         ///  创建新的菜单项
         ///   </summary>
         ///   <param name="name"> 菜单名 </param>
         ///   <param name="Text"> 显示文字 </param>
         ///   <param name="objEh"> 绑定事件 </param>
         ///   <returns> 返一个ToolStripMenuItem对象 </returns>
         private  ToolStripMenuItem createItem( string  name,  string  Text, EventHandler objEh)
        {
            System.Windows.Forms.ToolStripMenuItem lolumns  =   new  System.Windows.Forms.ToolStripMenuItem();
            lolumns.ForeColor  =  System.Drawing.Color.Black;
            lolumns.Name  =  name;
            lolumns.Size  =   new  System.Drawing.Size( 152 ,  24 );
            lolumns.Text  =  Text;
            lolumns.Click  +=  objEh;
             return  lolumns;
        }

 

我把全部代码放上大家多多指教

 

View Code

using  System;
using  System.Collections.Generic;
using  System.ComponentModel;
using  System.Diagnostics;
using  System.Text;
using  System.Drawing;
using  System.Windows.Forms;
using  bxyztSkin.csList;

namespace  bxyztSkin.Editors
{
     public   partial   class  CDataGridView : System.Windows.Forms.DataGridView
    {
         ///   <summary>
         ///  类说明：CDataGridView控件的实现用来代替系统的DataGridView控件
         ///  编码日期：2011-03-02
         ///  编 码 人：  苏飞
         ///  联系方式：361983679  Email：[email protected]  Blogs: http://sufei.cnblogs.com
         ///   </summary>
         public  CDataGridView()
        {
             this .SetStyle(ControlStyles.DoubleBuffer  |  ControlStyles.AllPaintingInWmPaint,  true );
        }
         // [Description("是否调用复制的开关，True为开启，False为不开启"), EditorBrowsable(EditorBrowsableState.Always), Browsable(true)]
         // public Boolean clipboard { get; set; }


         // [Description("复制的单元格号码从0开始"), EditorBrowsable(EditorBrowsableState.Always), Browsable(true)]
         // public int clipboardnumber { get; set; }

         // [Description("行号的颜色"), EditorBrowsable(EditorBrowsableState.Always), Browsable(true)]
         // public Color RowIndexColor { get; set; }

         protected   override   void  OnCreateControl()
        {
             this .EnableHeadersVisualStyles  =   false ;
             this .ColumnHeadersDefaultCellStyle.BackColor  =  Color.FromArgb( 247 ,  246 ,  239 );
             this .ColumnHeadersBorderStyle  =  DataGridViewHeaderBorderStyle.Raised;
             this .ColumnHeadersHeight  =   26 ;
             this .ColumnHeadersHeightSizeMode  =  DataGridViewColumnHeadersHeightSizeMode.DisableResizing;
             this .ColumnHeadersDefaultCellStyle.Alignment  =  System.Windows.Forms.DataGridViewContentAlignment.MiddleCenter;
             this .ColumnHeadersDefaultCellStyle.ForeColor  =  System.Drawing.SystemColors.WindowText;
             this .ColumnHeadersDefaultCellStyle.SelectionBackColor  =  System.Drawing.SystemColors.Highlight;
             this .ColumnHeadersDefaultCellStyle.SelectionForeColor  =  System.Drawing.SystemColors.HighlightText;
             this .RowHeadersDefaultCellStyle.Alignment  =  System.Windows.Forms.DataGridViewContentAlignment.MiddleLeft;
             this .RowHeadersDefaultCellStyle.BackColor  =  System.Drawing.SystemColors.Window;
             this .RowHeadersDefaultCellStyle.ForeColor  =  System.Drawing.SystemColors.WindowText;
             this .RowHeadersBorderStyle  =  System.Windows.Forms.DataGridViewHeaderBorderStyle.Single;
             this .DefaultCellStyle.SelectionBackColor  =  Color.Wheat;
             this .DefaultCellStyle.SelectionForeColor  =  Color.DarkSlateBlue;
             this .RowHeadersWidthSizeMode  =  DataGridViewRowHeadersWidthSizeMode.DisableResizing;
             this .GridColor  =  System.Drawing.SystemColors.GradientActiveCaption;
             this .BackgroundColor  =  System.Drawing.SystemColors.Window;
             this .BorderStyle  =  System.Windows.Forms.BorderStyle.Fixed3D;
             this .AllowUserToOrderColumns  =   true ;
             this .AutoGenerateColumns  =   true ;

             // 奇数行的颜色
             this .AlternatingRowsDefaultCellStyle.BackColor  =  Color.FromArgb( 216 ,  229 ,  248 );
             base .OnCreateControl();

             #region  菜单体
            bxyztSkin.CControls.CContextMenuStrip cmsleft  =   new  bxyztSkin.CControls.CContextMenuStrip();
            cmsleft.Font  =   new  System.Drawing.Font( " 微软雅黑 " , 10F);
            cmsleft.Name  =   " cmsleft " ;
            cmsleft.Size  =   new  System.Drawing.Size( 61 ,  4 );
             #endregion

             #region  注册菜单项

             // 在这里添加菜单项
            cmsleft.Items.Add(createItem( " clumnsFist " ,  " 冻结首列 " ,  new  EventHandler(clumnsFist_Click)));
            cmsleft.Items.Add(createItem( " rowsFist " ,  " 冻结首行 " ,  new  EventHandler(rowsFistFist_Click)));
            cmsleft.Items.Add(createItem( " officeExeceout " ,  " 导出到Excel " ,  new  EventHandler(officeExeceout_Click)));
            cmsleft.Items.Add(createItem( " fullSelect " ,  " 全选 " ,  new  EventHandler(fullSelect_Click)));
             #endregion

             #region  绑定菜单

            Button objpb  =   new  Button();
            objpb.BackgroundImage  =  bxyztSkin.Properties.Resources.caidan;
            objpb.Location  =   new  Point(objpb.Location.X  +   9 , objpb.Location.Y  +   4 );
            objpb.Width  =   17 ;
            objpb.Text  =   "" ;
             // 绑定一个右键菜单
            objpb.ContextMenuStrip  =  cmsleft;
            objpb.Cursor  =  System.Windows.Forms.Cursors.Hand;
            objpb.Height  =   17 ;
            objpb.BackgroundImageLayout  =  ImageLayout.Stretch;
            objpb.FlatStyle  =  FlatStyle.Popup;
             // 在添加前先注册一个事件
            objpb.Click  +=   new  EventHandler(objpb_Click);
             this .Controls.Add(objpb);

             #endregion
        }

         #region  菜单项的事件集合

         // 全选
         void  fullSelect_Click( object  sender, EventArgs e)
        {
             this .SelectAll();
        }

         // 导出到Excel
         void  officeExeceout_Click( object  sender, EventArgs e)
        {
             if  ( this .Rows.Count  >   0 )
            {
                OfficeManagerMentServices.DataGridViewToExcel( this );
            }
        }

         // 冻结/恢复首列
         void  clumnsFist_Click( object  sender, EventArgs e)
        {
             if  ( this .Columns.Count  >=   1 )
            {
                 for  ( int  i  =   0 ; i  <   this .Columns.Count; i ++ )
                {
                     if  ( this .Columns[i].Visible  ==   true )
                    {
                         if  ( this .Columns[i].Frozen)
                        {
                             this .Columns[i].Frozen  =   false ;
                            ((ToolStripMenuItem)sender).Text  =   " 冻结首列 " ;
                             return ;
                        }
                         else
                        {
                             this .Columns[i].Frozen  =   true ;
                            ((ToolStripMenuItem)sender).Text  =   " 恢复首列 " ;
                             return ;
                        }
                    }
                }
            }
        }

         // 冻结/恢复首行
         void  rowsFistFist_Click( object  sender, EventArgs e)
        {
             if  ( this .Rows.Count  >=   1 )
            {
                 if  ( this .Rows[ 0 ].Frozen)
                {
                     this .Rows[ 0 ].Frozen  =   false ;
                    ((ToolStripMenuItem)sender).Text  =   " 冻结首行 " ;
                }
                 else
                {
                     this .Rows[ 0 ].Frozen  =   true ;
                    ((ToolStripMenuItem)sender).Text  =   " 解冻首行 " ;
                }
            }
        }

         #endregion

         ///   <summary>
         ///  创建新的菜单项
         ///   </summary>
         ///   <param name="name"> 菜单名 </param>
         ///   <param name="Text"> 显示文字 </param>
         ///   <param name="objEh"> 绑定事件 </param>
         ///   <returns> 返一个ToolStripMenuItem对象 </returns>
         private  ToolStripMenuItem createItem( string  name,  string  Text, EventHandler objEh)
        {
            System.Windows.Forms.ToolStripMenuItem lolumns  =   new  System.Windows.Forms.ToolStripMenuItem();
            lolumns.ForeColor  =  System.Drawing.Color.Black;
            lolumns.Name  =  name;
            lolumns.Size  =   new  System.Drawing.Size( 152 ,  24 );
            lolumns.Text  =  Text;
            lolumns.Click  +=  objEh;
             return  lolumns;
        }

         // Button单击事件
         void  objpb_Click( object  sender, EventArgs e)
        {
            Button objbootn  =  (Button)sender;
             // 显示菜单的位置
            objbootn.ContextMenuStrip.Show(Control.MousePosition.X, Control.MousePosition.Y);
        }

         #region  鼠标颜色
        Color defaultcolor;

         // 移到单元格时的颜色
         protected   override   void  OnCellMouseMove(DataGridViewCellMouseEventArgs e)
        {
             base .OnCellMouseMove(e);
             try
            {
                Rows[e.RowIndex].DefaultCellStyle.BackColor  =  Color.YellowGreen;
            }
             catch  { }
        }

         // 进入单元格时保存当前的颜色

         protected   override   void  OnCellMouseEnter(DataGridViewCellEventArgs e)
        {
             base .OnCellMouseEnter(e);
             try
            {
                defaultcolor  =  Rows[e.RowIndex].DefaultCellStyle.BackColor;
            }
             catch  { }
        }

         // 离开时还原颜色
         protected   override   void  OnCellMouseLeave(DataGridViewCellEventArgs e)
        {
             base .OnCellMouseLeave(e);
             try
            {
                Rows[e.RowIndex].DefaultCellStyle.BackColor  =  defaultcolor;
            }
             catch  { }
        }

         // 在生成列表时添加一个行号，颜色默认为红色
         protected   override   void  OnRowPostPaint(DataGridViewRowPostPaintEventArgs e)
        {
             base .OnRowPostPaint(e);
             // 自动编号与数据库无关
            Rectangle rectangle  =   new  Rectangle(e.RowBounds.Location.X, e.RowBounds.Location.Y, RowHeadersWidth  -   4 , e.RowBounds.Height);
            TextRenderer.DrawText(e.Graphics, (e.RowIndex  +   1 ).ToString(), RowHeadersDefaultCellStyle.Font, rectangle,
             Color.Red, TextFormatFlags.VerticalCenter  |  TextFormatFlags.HorizontalCenter);
        }

         #endregion
    }
}