c# DataGridView 的一些属性设置，序号，合并头

   this .dataGridView1.DataSource = this .dISASTERBindingSource;

            this .dataGridView1.Location = new System.Drawing. Point (0, 0);

            this .dataGridView1.Name = "dataGridView1" ;

            this .dataGridView1.RowTemplate.Height = 30;

            this .dataGridView1.Size = new System.Drawing. Size (773, 343);

            this .dataGridView1.TabIndex = 0;

            this .dataGridView1.CellContentClick += new System.Windows.Forms. DataGridViewCellEventHandler ( this .dataGridView1_CellContentClick);

            this .dataGridView1.CellEndEdit += new System.Windows.Forms. DataGridViewCellEventHandler ( this .dataGridView1_endEdit);

            this .dataGridView1.AllowUserToResizeColumns = false ;

            this .dataGridView1.AllowUserToResizeRows = false ;

           

            /*

             * 设置最后边的背景色

             * */

            this .dataGridView1.BackgroundColor = System.Drawing. Color .FromArgb(240, 240, 240);

            /**

            *设置表头的高度 、对齐方式、颜色

            **/

            this .dataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms. DataGridViewColumnHeadersHeightSizeMode .DisableResizing;

            this .dataGridView1.ColumnHeadersHeight = 40;

          

            this .dataGridView1.ColumnHeadersDefaultCellStyle.Alignment = System.Windows.Forms. DataGridViewContentAlignment .MiddleCenter;

            this .dataGridView1.RowHeadersDefaultCellStyle.Alignment = System.Windows.Forms. DataGridViewContentAlignment .MiddleCenter;

 

            this .dataGridView1.EnableHeadersVisualStyles = false ;

            this .dataGridView1.ColumnHeadersDefaultCellStyle.BackColor = System.Drawing. Color .YellowGreen;

            this .dataGridView1.ColumnHeadersDefaultCellStyle.ForeColor = System.Drawing. Color .BlueViolet;

           

            /**

            *设置第一列不可编辑

            **/

            this .dataGridView1.Columns[0].ReadOnly = true ;

            /**

           *设置表格外边框样式

           **/

            this .dataGridView1.BorderStyle = System.Windows.Forms. BorderStyle .None;

            /**

           *设置表格内部的线条颜色

           **/

            this .dataGridView1.GridColor = System.Drawing. Color .WhiteSmoke;

            /**

           *去掉最后一行

           **/

            this .dataGridView1.AllowUserToAddRows = false ;

            /**

           *左侧标题栏隐藏

           **/

            this .dataGridView1.RowHeadersVisible = false ;

            /**

           *设置选中单元的背景色和字体颜色

           **/

            this .dataGridView1.DefaultCellStyle.SelectionBackColor = System.Drawing. Color .White;

            this .dataGridView1.DefaultCellStyle.SelectionForeColor = System.Drawing. Color .Black;

            /**

           *竖直方向填充满datagridview

           **/

            this .dataGridView1.AutoSizeColumnsMode = System.Windows.Forms. DataGridViewAutoSizeColumnsMode .Fill;

 

         

           /**

           *带链接的列

           **/

             private System.Windows.Forms. DataGridViewLinkColumn editColumn;

            this .editColumn.LinkColor = System.Drawing. Color .Blue;

            this .editColumn.UseColumnTextForLinkValue = true ;

            this .editColumn.Text = "修改" ;

            this .editColumn.HeaderText = "编辑" ;

            this .editColumn.Name = "editColumn" ;

            this .editColumn.DefaultCellStyle.Alignment = System.Windows.Forms. DataGridViewContentAlignment .MiddleCenter;

 

 　　 //datagridview前面加序号  直接在方法rowpostpaint中添加dataGridView_RowPostPaint这个方法就可以了  需要把rowheadervisible改为true

        private void dataGridView_RowPostPaint( object sender, DataGridViewRowPostPaintEventArgs e)

        {

            SetDataGridViewRowXh(e, sender as DataGridView );

        }

        private void SetDataGridViewRowXh( DataGridViewRowPostPaintEventArgs e, DataGridView dataGridView)

        {

            SolidBrush solidBrush = new SolidBrush (dataGridView.RowHeadersDefaultCellStyle.ForeColor);

            int xh = e.RowIndex + 1;

            e.Graphics.DrawString(xh.ToString( CultureInfo .CurrentUICulture), e.InheritedRowStyle.Font, solidBrush, e.RowBounds.Location.X + 5, e.RowBounds.Location.Y + 4);

        }

         

 #region 重绘datagridview表头

            DataGridView dgv = ( DataGridView )(sender);

            if (e.RowIndex == -1 && (e.ColumnIndex == 1 || e.ColumnIndex == 2))

            {

 

                //e.CellStyle.Font = new Font(dataGridView1.DefaultCellStyle.Font, FontStyle.Bold);

                //e.CellStyle.WrapMode = DataGridViewTriState.True;

                if (e.ColumnIndex == 1)

                {

                    top = e.CellBounds.Top;

                    left = e.CellBounds.Left;

                    height = e.CellBounds.Height;

                    width1 = e.CellBounds.Width;

                }

 

 

                int width2 = this .dataGridView1.Columns[2].Width;

 

                Rectangle rect = new Rectangle (left, top, width1 + width2, e.CellBounds.Height);

                using ( Brush backColorBrush = new SolidBrush (e.CellStyle.BackColor))

                {

                    //抹去原来的cell背景

                    e.Graphics.FillRectangle(backColorBrush, rect);

                }

 

                using ( Pen gridLinePen = new Pen (dgv.GridColor))

                {

                    //画表头的左、上、右、下边线

                    //e.Graphics.DrawLine(gridLinePen, left, top , left, top + height);

                    e.Graphics.DrawLine(gridLinePen, left, top , left + width1 + width2-1, top );

                    e.Graphics.DrawLine(gridLinePen, left + width1 + width2 - 1, top, left + width1 + width2 - 1, top + height-2);

                    e.Graphics.DrawLine( new Pen ( Color .FromArgb(160, 160, 160)), left, top + height - 1, left + width1 + width2-1, top + height - 1);

                    //计算绘制字符串的位置

                    string columnValue = "编辑" ;

                    SizeF sf = e.Graphics.MeasureString(columnValue, e.CellStyle.Font);

                    float lstr = (width1 + width2 - sf.Width) / 2;

                    float rstr = (height - sf.Height) / 2;

 

                    //画出文本框

                    if (columnValue != "" )

                    {

                        e.Graphics.DrawString(columnValue, e.CellStyle.Font,

                                                   new SolidBrush (e.CellStyle.ForeColor),

                                                     left + lstr,

                                                     top + rstr,

                                                     StringFormat .GenericDefault);

                    }

 

                }

                e.Handled = true ;

 

 

            }

            #endregion