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?
1.隐藏最上面的GroupPanel
? gridView1.OptionsView.ShowGroupPanel=false;
2.得到当前选定记录某字段的值
? sValue=Table.Rows[gridView1.FocusedRowHandle][FieldName].ToString();
3.数据只读
? gridView1.OptionsBehavior.Editable=false;
4.不显示MasterDetailView
? gridView1.OptionsDetail.EnableMasterViewMode=false;
5.修改最上面的GroupPanel内容
?? gridView1.GroupPanelText="柳生飘絮";
6.设置数据源:
?? gridControl1.DataSource = dt;
?? 绑定每一列的FiledName--属性
?? 对于Oracle数据库,所有的在设计器里写的程序中的字段名必须大写,否则可能绑定不上字段,sqlserver没有这个限制.
7.读写拷贝权限设置
? 只读不可拷贝：
??? ColumnViewOptionsBehavior.Editable = False
? 只读可拷贝:
??? ColumnViewOptionsBehavior.Editable = True
??? OptionsColumn.AllowEdit = True
??? OptionsColumn.ReadOnly = True
? 可编辑:
??? ColumnViewOptionsBehavior.Editable = True
??? OptionsColumn.AllowEdit = True
??? OptionsColumn.ReadOnly = False
8.模板列的设置:
? 到Columns中，在他的属性中找到ColumnEdit.
? 以LookUpEdit为例：
? 首先从Designer左边菜单In-Place Editor Repository中添加LookUpEdit.取名为Re1.然后.在他的Columns属性中添加3列.Caption依次为:编号,姓名,性别.FieldName依次为:FID,FNAME,FSEX.然后将Re1的NullText设置成空.
AutoSearchColumnIndex属性设置为2.ImmediatePopup属性设置为True.
SearchMode设置为OnlyInPopup.
然后将这个模板列附加到我们上面提到的列1(也就是将列1的ColumnEdit属性设成Re1)
最后我们还要在代码里面给Re1绑定数据源和显示项.
???????? Re1.DataSource = DALUse.Query("select fid,fname,fsex from dual").Tables[0];
???????? Re1.DisplayMember = "FSEX";
???????? Re1.ValueMember = "FNAME";
?
9.设某一列文字和标题局中显示?????????????????
?? gridView1.Columns[0].AppearanceHeader.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;
?? gridView1.Columns[0].AppearanceCell.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;
?
10.去掉某一列上面的自动筛选功能(Filter)?????????????????
?? gridView1.Columns[0].OptionsFilter.AllowAutoFilter = false;
?? gridView1.Columns[0].OptionsFilter.AllowFilter = false;???????????????
?? gridView1.Columns[0].OptionsFilter.ImmediateUpdateAutoFilter = false;
?
11.设置冻结列(左冻结)
? gridView1.Columns[0].Fixed= DevExpress.XtraGrid.Columns.FixedStyle.Left;
?
12.得到单元格数据(0行0列)
?? string ss=gridView1.GetRowCellDisplayText(0,gridView1.Columns[0]);
?? string ss = gridView1.GetRowCellValue(0,gridView1.Columns[0]);
?
13.设置单元格数据(将0行0列的单元格赋值123)
?? gridView1.SetRowCellValue(0,gridView1.Columns[0],"123");
?
13.手动添加dev的列
? DevExpress.XtraGrid.Columns.GridColumn Col1=new DevExpress.XtraGrid.Columns.GridColumn ();
? Col1.FieldName="FID";
? Col1.Visible=true;
? Col1.VisibleIndex=gridView1.Columns.Count;
? gridView1.Columns.Add(Col1);
14.设置自动增加的行号,需要先添加给gridview添加事件CustomDrawRowIndicator
??? private void gridview_CustomDrawRowIndicator(object sender,??????????????????????????? DevExpress.XtraGrid.Views.Grid.RowIndicatorCustomDrawEventArgs e)
??? {
??????? if (e.Info.IsRowIndicator && e.RowHandle >= 0)
??????????????? e.Info.DisplayText = (e.RowHandle + 1).ToString();
??? }
15.删除: (修改了dgvdel里的datagridviewdel方法)
??? public static void datagridviewdel_Dev(DevExpress.XtraGrid.Views.Grid.GridView Mydgv)
??? {
?????? if (MessageBox.Show("你确定要删除选中的记录吗？","删除提示",MessageBoxButtons.YesNo,?????????????? MessageBoxIcon.Warning,MessageBoxDefaultButton.Button2,false) == DialogResult.Yes)
?????? {
?????????? int iSelectRowCount = Mydgv.SelectedRowsCount;
?????????? if (iSelectRowCount > 0)
?????????? {
???????????? Mydgv.DeleteSelectedRows();
?????????? }
?????? }
??? }
?
16. 新增: (对于新增,其本身的AddNewRow方法就可以做到)
??? private void btn_add_Click(object sender,EventArgs e)
??? {?
?????? gridView1.AddNewRow();??
???? }
??? 具体如果对于新加行还有什么特别的设置,可以在它gridView1_InitNewRow事件中填写:
??? private void gridView1_InitNewRow(object sender,DevExpress.XtraGrid.Views.Grid.InitNewRowEventArgs e)
??? {
?????? ColumnView View = sender as ColumnView;
?????? View.SetRowCellValue(e.RowHandle,View.Columns[0],gridView1.GetRowCellValue(gridView1.GetRowHandle(gridView1.RowCount - 2),gridView1.Columns[0])); //复制最后一行的数据到新行
??????????? View.SetRowCellValue(e.RowHandle,View.Columns[1],gridView1.Columns[1])); //复制最后一行的数据到新行
??? }
?
17. 保存 (第三方控件提供的RefreshData和RefreshDataSource方法对于保存数据都不好使,最后还是使用了Dgvsave的datagridviewsave方法,用这个方法就可以)
18.特效：gridcontrol中有5种view 型式，普通的是gridview，然后分别为cardview、BandedView、Advanced BandedView、LayoutView；共5种。
? 1）、view组中把OptionView下的viewmode 设置成“Carousel”就达到这种“旋转木马”式的gridcontrol view 特效了
? 2）、layoutView1.OptionsCarouselMode.PitchAngle 这个属性决定“旋转木马”的pitch angle 螺距角; 螺旋角; 螺旋升角; 俯仰角; 倾角; 节锥半角
? 3）、Roll Angle 属性决定着 倾侧角度
? 4）、指定数据源，显示数据：
? //显示数据
??????? private void showData(List<Employee > list)
??????? {
??????????? DataTable dt = new DataTable("OneEmployee");
??????????? dt.Columns.Add("Caption",System.Type.GetType("System.String"));
??????????? dt.Columns.Add("Department",System.Type.GetType("System.String"));
??????????? dt.Columns.Add("PhotoName",System.Type.GetType("System.Byte[]"));
??????????? for (int i = 0; i < list.Count; i++)
??????????? {
??????????????? DataRow dr = dt.NewRow();
??????????????? dr["Caption"] = list[i].Name;
??????????????? dr["Department"] = list[i].Department;
??????????????? string imagePath = @"D:C#photos" + list[i].PhotoPath;
??????????????? dr["PhotoName"] = getImageByte(imagePath);
??????????????? dt.Rows.Add(dr);
??????????? }
??????????? gridControl1.DataSource = dt;
??????? }
??????? //返回图片的字节流byte[]
??????? private byte[] getImageByte(string imagePath)
??????? {
??????????? FileStream files = new FileStream(imagePath,FileMode.Open);
??????????? byte[] imgByte = new byte [files.Length ];
??????????? files.Read(imgByte,imgByte.Length);
??????????? files.Close();
??????????? return imgByte;
??????? }
19.检查数据的有效性
? 在gridview的ValidateRow事件中加入检查代码：
? #region 检查数据
? private void gridView1_ValidateRow(object sender,ValidateRowEventArgs e)
? {
? GridView view = sender as GridView;
? view.ClearColumnErrors();
? if (view.GetRowCellValue(e.RowHandle,"ReceiveDate") == DBNull.Value)
? {
? e.Valid = false;
? view.SetColumnError(view.Columns["ReceiveDate"],"必须指定日期");
? }
? }
? #endregion
? 调用gridview.UpdateCurrentRow()方法执行检查
最常用的DevExpress Winform 4个代码片段：
一 、GridControl的删除操作
private void rILinkEditInfoDel_Click(object sender,EventArgs e)
{
???? if (XtraMessageBox.Show("请确定是否删除当前记录？","警告",MessageBoxIcon.Warning) == DialogResult.Yes)
???? {
???????? DataRow row = gvInfos.GetDataRow(gvInfos.FocusedRowHandle);
????????? delByCode(row["Code"].ToString());
???????? XtraMessageBox.Show("操作成功！");
???? }
}
二、绑定非数据表中列
Hashtable ht = new Hashtable();
private void gridView6_CustomUnboundColumnData(object sender,DevExpress.XtraGrid.Views.Base.CustomColumnDataEventArgs e)
{
???? GridView View = sender as GridView;
???? if (e.RowHandle >= 0)
???? {
???????? object needAlert = View.GetRowCellValue(e.RowHandle,View.Columns["needAlert"]);
???????? if (needAlert != null & needAlert != DBNull.Value && needAlert.ToString().Trim() != "0" & View.GetRowCellValue(e.RowHandle,View.Columns["Value"]) != DBNull.Value)
???????? {
???????????? decimal AverValue = Convert.ToDecimal(View.GetRowCellValue(e.RowHandle,View.Columns["Value"]));
???????????? object MinValue = View.GetRowCellValue(e.RowHandle,View.Columns["MinValue"]);
???????????? object MaxVlaue = View.GetRowCellValue(e.RowHandle,View.Columns["MaxValue"]);
???????????? if (MinValue != DBNull.Value & MinValue != null & MaxVlaue.ToString() != "" & MaxVlaue != DBNull.Value && MaxVlaue != null & MaxVlaue.ToString() != "")
???????????? {
???????????????? decimal gridColumn2 = Convert.ToDecimal(View.GetRowCellValue(e.RowHandle,View.Columns["MinValue"]));
???????????????? decimal gridColumn1 = Convert.ToDecimal(View.GetRowCellValue(e.RowHandle,View.Columns["MaxValue"]));
???????????????? if (gridColumn2 > AverValue || AverValue > gridColumn1)
???????????????? {
???????????????????? if (!ht.ContainsKey("pic"))
???????????????????????? ht.Add("pic",GetImage(1));
???????????????????? e.Value = ht["pic"];
???????????????? }
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