C#.NET DataGridView单元格合并问题

2008-12-30 03:10:03 235 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

C# DataGridView单元格合并与文字居中 #region &lt;&lt;单元格合并配置&gt;&gt; public struct MergeCellsParam { public int iStartCellColumn; public int iStartCellRow; public int iEndCellColumn; ... 阅读详情

C#.NET DataGridView

请各位大虾帮帮忙，我想在已经数据的DataGridView上，把同一列下相同的单元格合并，有什么办法吗？

请指教，或者有相关单元格合并的例子，可以参考一下！

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mr3 2012-03-20

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http://topic.csdn.net/u/20100609/13/4d9006e4-529e-4b30-91ae-9908f5806c58.html
楼主看下这个.前几天查这个问题的看到了这个贴.比较不错`

suners 2008-12-30

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dingy8ixia

Jack123 2008-12-30

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 "#region"合并单元格的测试"

        private int nextrow = null;

        private int nextcol = null;

        private void dataGridView1_CellFormatting(object sender, System.Windows.Forms.DataGridViewCellFormattingEventArgs e)

        {

            if (this.dataGridView1.Columns["description"].Index == e.ColumnIndex && e.RowIndex >= 0)

            {

                if (this.nextcol != null & e.ColumnIndex == this.nextcol)

                {

                    e.CellStyle.BackColor = Color.LightBlue;

                    this.nextcol = null;

                }

                if (this.nextrow != null & e.RowIndex == nextrow)

                {

                    e.CellStyle.BackColor = Color.LightPink;

                    this.nextrow = null;

                }

                if (e.RowIndex != this.dataGridView1.RowCount - 1)

                {

                    if (e.Value.ToString() == this.dataGridView1.Rows[e.RowIndex + 1].Cells[e.ColumnIndex].Value.ToString())

                    {

                        e.CellStyle.BackColor = Color.LightPink;

                        nextrow = e.RowIndex + 1;

                    }

                }



            }

            if (this.dataGridView1.Columns["name"].Index == e.ColumnIndex && e.RowIndex >= 0)

            {

                if (e.Value.ToString() == this.dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex + 1].Value.ToString())

                {

                    e.CellStyle.BackColor = Color.LightBlue;

                    nextcol = e.ColumnIndex + 1;

                }

            }

        }

        //==========================

       

        //绘制单元格

        private void dataGridView1_CellPainting(object sender, System.Windows.Forms.DataGridViewCellPaintingEventArgs e)

        {



 



            //纵向合并

            if (this.dataGridView1.Columns["description"].Index == e.ColumnIndex && e.RowIndex >= 0)

            {



                using (

                    Brush gridBrush = new SolidBrush(this.dataGridView1.GridColor),

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

                {

                    using (Pen gridLinePen = new Pen(gridBrush))

                    {

                        // 擦除原单元格背景

                        e.Graphics.FillRectangle(backColorBrush, e.CellBounds);

                        /**/////绘制线条,这些线条是单元格相互间隔的区分线条,

                        ////因为我们只对列name做处理,所以datagridview自己会处理左侧和上边缘的线条

                        if (e.RowIndex != this.dataGridView1.RowCount - 1)

                        {

                            if (e.Value.ToString() != this.dataGridView1.Rows[e.RowIndex + 1].Cells[e.ColumnIndex].Value.ToString())

                            {



                                e.Graphics.DrawLine(gridLinePen, e.CellBounds.Left, e.CellBounds.Bottom - 1,

                                e.CellBounds.Right - 1, e.CellBounds.Bottom - 1);//下边缘的线

                                //绘制值

                                if (e.Value != null)

                                {

                                    e.Graphics.DrawString((String)e.Value, e.CellStyle.Font,

                                        Brushes.Crimson, e.CellBounds.X + 2,

                                        e.CellBounds.Y + 2, StringFormat.GenericDefault);

                                }

                            }

                        }

                        else

                        {

                            e.Graphics.DrawLine(gridLinePen, e.CellBounds.Left, e.CellBounds.Bottom - 1,

                                e.CellBounds.Right - 1, e.CellBounds.Bottom - 1);//下边缘的线

                            //绘制值

                            if (e.Value != null)

                            {

                                e.Graphics.DrawString((String)e.Value, e.CellStyle.Font,

                                    Brushes.Crimson, e.CellBounds.X + 2,

                                    e.CellBounds.Y + 2, StringFormat.GenericDefault);

                            }

                        }

                        //右侧的线

                        e.Graphics.DrawLine(gridLinePen, e.CellBounds.Right - 1,

                            e.CellBounds.Top, e.CellBounds.Right - 1,

                            e.CellBounds.Bottom - 1);



                        e.Handled = true;

                    }

                }

            }



            //横向合并

            if (this.dataGridView1.Columns["name"].Index == e.ColumnIndex && e.RowIndex >= 0)

            {



                using (

                    Brush gridBrush = new SolidBrush(this.dataGridView1.GridColor),

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

                {

                    using (Pen gridLinePen = new Pen(gridBrush))

                    {

                        // 擦除原单元格背景

                        e.Graphics.FillRectangle(backColorBrush, e.CellBounds);



                        if (e.Value.ToString() != this.dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex + 1].Value.ToString())

                        {



                            //右侧的线

                            e.Graphics.DrawLine(gridLinePen, e.CellBounds.Right - 1, e.CellBounds.Top,

                                e.CellBounds.Right - 1, e.CellBounds.Bottom - 1);

                            //绘制值

                            if (e.Value != null)

                            {

                                e.Graphics.DrawString((String)e.Value, e.CellStyle.Font,

                                    Brushes.Crimson, e.CellBounds.X + 2,

                                    e.CellBounds.Y + 2, StringFormat.GenericDefault);

                            }

                        }



                        //下边缘的线

                        e.Graphics.DrawLine(gridLinePen, e.CellBounds.Left, e.CellBounds.Bottom - 1,

                                                    e.CellBounds.Right - 1, e.CellBounds.Bottom - 1);

                        e.Handled = true;

                    }

                }



            }



        }



        #endregion

C#.NET DataGridView单元格合并问题

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