CDataGrid
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enum DataMask { Num, Float, Date, NvChar, Bit }; [ToolboxBitmap(typeof(System.Windows.Forms.DataGridView))] class CDataGrid : DataGridView { public DataMask val_type; public object val_default; public bool val_null; public CDataGrid() { val_type = new DataMask(); val_default = null; val_null = true; this.CellValidated += new DataGridViewCellEventHandler(CDataGrid_CellValidated); this.RowsAdded += new DataGridViewRowsAddedEventHandler(CDataGrid_RowsAdded); this.RowsRemoved += new DataGridViewRowsRemovedEventHandler(CDataGrid_RowsRemoved); this.CellEndEdit += new DataGridViewCellEventHandler(CDataGrid_CellEndEdit); }//构造函数 public string cValue { get { return "'" + this.CurrentCell.Value.ToString() + "'"; } } public void PaintEachOtherGridItem(Color cor) { if (this.Rows.Count != 0) { for (int i = 0; i < this.Rows.Count; ) { this.Rows[i].DefaultCellStyle.BackColor = cor; i += 2; } } }//隔行着色 public void FillTableRow(System.Data.DataTable table) { this.Visible = false; this.Rows.Clear(); for (int i = 0; i < table.Rows.Count; i++) //显示到表格 { this.Rows.Add(); for (int j = 0; j < table.Columns.Count; j++) { if (table.Rows[i][j].ToString().Length>0) this.Rows[i].Cells[j + 1].Value = table.Rows[i][j].ToString(); } } this.Visible = true; }//填充数据，行 public void Fill(System.Data.DataTable table) { this.Visible = false; this.Rows.Clear(); this.Columns.Clear(); //this.ColumnCount = table.Columns.Count + 1; this.Columns.Add("sn", "sn"); this.Columns[0].Visible = false; foreach (DataColumn col in table.Columns) this.Columns.Add(col.ColumnName, col.ColumnName); FillTableRow(table); this.Visible = true; } public void AutosizeColumnsWidth() { this.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.None; foreach (DataGridViewColumn col in this.Columns) col.Width = 12 * col.Name.Length + 32; }//自动调整列宽 public void Export() { #region range int count = this.Columns.Count; if (count > 256||count==0) return;//超出Excel的最大行数，或者为零 string cell = string.Empty; int first = count / 26; int second = count - (first * 26); if (first > 1) { if (second > 0) cell = ((char)(64 + first)).ToString() + ((char)(64 + second)).ToString(); else if (second == 0) cell = ((char)(64 + first - 1)).ToString() + ((char)(90)).ToString(); else { MessageBox.Show("Interial Error", "Error Information", MessageBoxButtons.OK, MessageBoxIcon.Error); return; } } else if (first == 1) { if (second > 0) cell = ((char)(64 + first)).ToString() + ((char)(64 + second)).ToString(); else if (second == 0) cell = ((char)(90)).ToString(); else { MessageBox.Show("Interial Error", "Error Information", MessageBoxButtons.OK, MessageBoxIcon.Error); return; } } else if (first == 0) { cell = ((char)(64 + second)).ToString(); } else { MessageBox.Show("Interial Error", "Error Information", MessageBoxButtons.OK, MessageBoxIcon.Error); return; } cell += "1"; #endregion #region Start Excel Excel.Application app = new Excel.ApplicationClass(); if (app == null) { MessageBox.Show("Excel无法启动，请确认本机已经正确安装Microsoft Excel。","启动错误",MessageBoxButtons.OK,MessageBoxIcon.Error); return; } app.Visible = false; Excel.Workbooks wbs = app.Workbooks; Excel.Workbook wb = wbs.Add(Missing.Value); Excel.Worksheet ws = (Excel.Worksheet)wb.Worksheets[1]; #endregion Excel.Range r = ws.get_Range("A1", cell); //MessageBox.Show(cell); //r.Select(); r.NumberFormatLocal = "@"; #region header object[] objHeader = new object[this.Columns.Count]; foreach (DataGridViewColumn c in this.Columns) objHeader[c.Index] = c.Name; #endregion #region write data r.Value2 = objHeader; if (this.Rows.Count > 1) { r = ws.get_Range("A2", Missing.Value); object[,] objData = new Object[this.Rows.Count, this.Columns.Count]; for (int i = 0; i < this.Rows.Count - 1; i++) { foreach (DataGridViewColumn col in this.Columns) { if (this.Rows[i].Cells[col.Index].Value != null) objData[i, col.Index] = this.Rows[i].Cells[col.Index].Value; } } r = r.get_Resize(this.Rows.Count, this.Columns.Count); r.Select(); //选中 r.NumberFormatLocal = "@"; //文本格式 r.Value2 = objData; r.EntireColumn.AutoFit(); //自动调整列宽 r.HorizontalAlignment = Excel.XlVAlign.xlVAlignCenter; //居中 } #endregion app.Visible = true; }//导出到Microsoft Excel #region ///验证 private void CDataGrid_CellValidated(object sender, DataGridViewCellEventArgs e) { if (e.RowIndex == this.Rows.Count - 1) return; if (CurrentCell.ReadOnly) return;//单元格只读，则返回 #region default value if (CurrentCell.Value == null)//单元格为null { if (val_null) //允许为空 { CurrentCell.ErrorText =string.Empty; } else//不允许为空 { if (val_default != null)//默认值存在 { CurrentCell.Value = val_default; CurrentCell.ErrorText = string.Empty; }//恢复为默认值 else //默认值不存在 CurrentCell.ErrorText = "内容尚未填充！"; } return;//返回 } #endregion #region 验证 switch (val_type) { case DataMask.Num: { if (!Regex.IsMatch(CurrentCell.Value.ToString(), @"^([0-9]*)$")) CurrentCell.ErrorText = "错误的数字格式"; else CurrentCell.ErrorText = String.Empty; break; } case DataMask.Float: { if (!Regex.IsMatch(CurrentCell.Value.ToString().ToString(), @"^(-?"d+)("."d+)?$")) CurrentCell.ErrorText = "错误的浮点数据格式"; else CurrentCell.ErrorText = String.Empty; break; } case DataMask.Date: { if (!Regex.IsMatch(CurrentCell.Value.ToString().ToString(), @"^(?<month>(0?[1-9])|1[0-2])(-|/)(?<day>(0?[1-9])|((1|2)[0-9])|30|31)(-|/)(?<year>"d{4})")) CurrentCell.ErrorText = "数据格式: mm-dd-yyyy"; else CurrentCell.ErrorText = String.Empty; break; } case DataMask.Bit: { if (CurrentCell.Value.ToString() != "1" && CurrentCell.Value.ToString() != "0") this.Rows[e.RowIndex].Cells[e.ColumnIndex].ErrorText = "错误的Bool格式"; else this.Rows[e.RowIndex].Cells[e.ColumnIndex].ErrorText = String.Empty; break; } case DataMask.NvChar: { CurrentCell.ErrorText = String.Empty; break; } default: { break; } } #endregion } private void CDataGrid_CellEndEdit(object sender, DataGridViewCellEventArgs e) { this.Rows[e.RowIndex].ErrorText = String.Empty; } // Clear the row error in case the user presses ESC. #endregion #region ///添加, 删除行 private void CDataGrid_RowsAdded(object sender, DataGridViewRowsAddedEventArgs e) { foreach (DataGridViewRow row in this.Rows) { row.Cells[0].Value = row.Index + 1; } } private void CDataGrid_RowsRemoved(object sender, DataGridViewRowsRemovedEventArgs e) { foreach (DataGridViewRow row in this.Rows) { row.Cells[0].Value = row.Index + 1; } } #endregion } 0 0
