DEV控件：gridControl常用属性

发布时间：2020-12-12 14:42:23 所属栏目：MsSql教程来源：网络整理

导读：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 ? sVal=Table.Rows[gridView1.FocusedRowHandle][FieldName].ToString(); ? 3.数据只读 ? gridView1.OptionsBehavior.Editable=false; ? 4.不显示M

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

? sVal=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 = Tr

??? OptionsColumn.AllowEdit = Tr

??? OptionsColumn.ReadOnly = Tr

? 可编辑:

??? ColumnViewOptionsBehavior.Editable = Tr

??? OptionsColumn.AllowEdit = Tr

??? 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Tr.

　　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.Qry("select fid,fname,fsex from d l").Tables[0];

???????? Re1.DisplayMember = "FSEX";

???????? Re1.ValMember = "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.GetRowCellVal(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.SetRowCellVal(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=tr;

? 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)

??? p lic 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.SetRowCellVal(e.RowHandle,View.Columns[0],gridView1.GetRowCellVal(gridView1.GetRowHandle

(gridView1.RowCount - 2),gridView1.Columns[0])); //复制最后一行的数据到新行

??????????? View.SetRowCellVal(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.GetRowCellVal(e.RowHandle,"ReceiveDate") == DBNull.Val)

??? {

?????? 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.GetRowCellVal(e.RowHandle,View.Columns["needAlert"]);

???????? if (needAlert != null & needAlert != DBNull.Val && needAlert.ToString().Trim() != "0" & View.GetRowCellVal(e.RowHandle,View.Columns["Val"]) != DBNull.Val)

???????? {

???????????? decimal AverVal = Convert.ToDecimal(View.GetRowCellVal(e.RowHandle,View.Columns["Val"]));

???????????? object MinVal = View.GetRowCellVal(e.RowHandle,View.Columns["MinVal"]);

???????????? object MaxVla = View.GetRowCellVal(e.RowHandle,View.Columns["MaxVal"]);

???????????? if (MinVal != DBNull.Val & MinVal != null & MaxVla.ToString() != "" & MaxVla != DBNull.Val && MaxVla != null & MaxVla.ToString() != "")

???????????? {

???????????????? decimal gridColumn2 = Convert.ToDecimal(View.GetRowCellVal(e.RowHandle,View.Columns["MinVal"]));

???????????????? decimal gridColumn1 = Convert.ToDecimal(View.GetRowCellVal(e.RowHandle,View.Columns["MaxVal"]));

???????????????? if (gridColumn2 > AverVal || AverVal > gridColumn1)

???????????????? {

???????????????????? if (!ht.ContainsKey("pic"))

???????????????????????? ht.Add("pic",GetImage(1));

???????????????????? e.Val = ht["pic"];

???????????????? }

???????????? }

???????? }

???? }

}

/// <summary>

/// 由资源文件获取图片

/// </summary>

/// <param name="key"></param>

/// <returns></returns>

byte[] GetImage(int key)

{

???? Image img = DevExpress.Utils.Controls.ImageHelper.CreateImageFromResources(string.Format("RiverSys.Resources.{0}.gif",key.ToString()),typeof(RiverInfos).Assembly);

???? return DevExpress.XtraEditors.Controls.ByteImageConverter.ToByteArray(img,ImageFormat.Gif);

}

/// <summary>

/// 动态根据条件设置行样式

/// </summary>

/// <param name="sender"></param>

/// <param name="e"></param>

private void gridView6_RowStyle(object sender,DevExpress.XtraGrid.Views.Grid.RowStyleEventArgs e)

{

???? GridView View = sender as GridView;

???? if (e.RowHandle >= 0)

???? {

???????? object needAlert = View.GetRowCellVal(e.RowHandle,View.Columns["MaxVal"]);

???????????? if (MinVal != DBNull.Val & MinVal != null & MaxVla.ToString() != "" & MaxVla != DBNull.Val && MaxVla != null & MaxVla.ToString() != "")

???????????? {

???????????????? decimal gridColumn2 = Convert.ToDecimal(MinVal);

???????????????? decimal gridColumn1 = Convert.ToDecimal(MaxVla);

???????????????? if (gridColumn2 > AverVal || AverVal > gridColumn1)

???????????????? {

???????????????????? e.Appearance.ForeColor = Color.Red;

???????????????????? e.Appearance.BackColor = Color.LightGray;

???????????????? }

???????????? }

???????? }

???? }

}

三、GridControl 中颜色选择控件

private void gvMapColor_CustomUnboundColumnData(object sender,DevExpress.XtraGrid.Views.Base.CustomColumnDataEventArgs e)

{

???? GridView view = sender as GridView;

???? DataView dv = view.DataSource as DataView;

???? if (e.IsGetData)

???? {

???????? string strVal = dv[e.ListSourceRowIndex]["Color"].ToString();

???????? if (strVal != "")

???????? {

???????????? //e.Val = DevExpress.Utils.StyleLayout.ColorFromString(strVal);

???????????? e.Val = Common.HexToColor(strVal);

???????? }

???? }

???? else

???? {

???????? //Color colorVal = DevExpress.Utils.StyleLayout.ColorFromString(e.Val.ToString());

???????? Color colorVal = (Color)e.Val;

???????? dv[e.ListSourceRowIndex]["Color"] = Common.RGB_HEX(colorVal.ToArgb());

???? }

}

四、关于 GridControl 验证示例

/**//// <summary>

/// 初始化GridView，绑定数据

/// </summary>

/// <param name="parentId"></param>

private void GridViewBindData(string parentId)

{

this.gridView1.Columns.Clear();

this.FDs= areaSetupActionHelper.getDsRegionByParentId(parentId);

this.gridCArea.DataSource =this.FDs.Tables[0].DefaultView;

??? this.gridView1.Columns["id"].VisibleIndex = -1;

??? this.gridView1.Columns["childCounts"].VisibleIndex = -1;

??? this.gridView1.Columns["reg_id"].Caption = "区划编号";

??? this.gridView1.Columns["reg_name"].Caption = "区划名称";

??? this.gridView1.Columns["parent_id"].Caption = "父区划编号";

??? this.gridView1.Columns["reg_desc"].Caption = "区划描述";

??? this.gridView1.Columns["parent_id"].ImageIndex =1;

??? this.gridView1.Columns["reg_desc"].ImageIndex = 0;

??? RepositoryItemTextEdit textEditReg_Id = new RepositoryItemTextEdit();

??? textEditReg_Id.Mask.EditMask =parentId+"d{2,3}";

??? textEditReg_Id.Mask.MaskType = DevExpress.XtraEditors.Mask.MaskType.Regular;

??? this.gridView1.Columns["reg_id"].ColumnEdit = textEditReg_Id;

??? this.gridView1.Columns["reg_desc"].ColumnEdit = new RepositoryItemMemoExEdit();

??? TreeListNode node = this.treelArea.FocusedNode.ParentNode;

??? string fid = node==null?"0":node.GetVal("RegID").ToString().Trim();

??? DataSet ds = areaSetupActionHelper.getDsRegionByParentId(fid);

??? RepositoryItemLookUpEdit lookParent_Id = new RepositoryItemLookUpEdit();

??? lookParent_Id.Columns.Add(new LookUpColumnInfo("reg_id",40,"区划编号"));

??? lookParent_Id.Columns.Add(new LookUpColumnInfo("reg_name","区划名称"));

??? lookParent_Id.DataSource = ds.Tables[0].DefaultView;

??? lookParent_Id.ValMember = "reg_id";

??? lookParent_Id.DisplayMember = "reg_id";

??? this.gridView1.Columns["parent_id"].ColumnEdit = lookParent_Id;

}

/**//// <summary>

/// gridView单元格验证的相关处理程序

/// </summary>

/// <param name="sender"></param>

/// <param name="e"></param>

private void gridView1_ValidatingEditor(object sender,DevExpress.XtraEditors.Controls.BaseContainerValidateEditorEventArgs e)

{

if (e.Valid == false&this.gridView1.FocusedColumn.FieldName == "reg_id")

{

????? e.ErrorText = "区划编号不合法！n应为父区划编号加2～3位数据组成！";??

??? }

??? if (this.gridView1.FocusedColumn.FieldName == "reg_name")

??? {????

???? Regex reg=new Regex(@"[一-龥]{1,20}");

???? Match m=reg.Match(e.Val.ToString().Trim());

???? if (m.Length != e.Val.ToString().Trim().Length)

???? {

????? e.Valid = false;

????? e.ErrorText = "区划名称应为汉字n长度为1至20";

???? }

??? }

}

?private void gridView1_InvalidValException(object sender,InvalidValExceptionEventArgs e)

{

??? if (MyDialog.Alert("　您所填写的内容不符合规则n　要放弃您刚才对此项所做的更改吗？","您所编辑的内容不符合规则",MessageBoxIcon.Warning) == DialogResult.Yes)

??? {

???? e.ExceptionMode = ExceptionMode.Ignore;

??? }

}

/**//// <summary>

/// gridView行验证的相关处理程序

/// </summary>

private void gridView1_ValidateRow(object sender,DevExpress.XtraGrid.Views.Base.ValidateRowEventArgs e)

{

string regid = this.gridView1.GetRowCellVal(e.RowHandle,"reg_id").ToString().Trim();

string regName = this.gridView1.GetRowCellVal(e.RowHandle,"reg_name").ToString().Trim();

if ( regid.Length < 1)

{

???? e.Valid = false;

???? this.gridView1.SetColumnError(this.gridView1.Columns["reg_id"],"请填写区划编号!",DevExpress.XtraEditors.DXErrorProvider.ErrorType.Default);

????? // e.ErrorText = "区划名称不能为空!";

??? }

??? if (regName.Length < 1)

??? {

???? e.Valid = false;

???? this.gridView1.SetColumnError(this.gridView1.Columns["reg_name"],"区划名称不能为空!",DevExpress.XtraEditors.DXErrorProvider.ErrorType.Default);

??? }

}

private void gridView1_InvalidRowException(object sender,DevExpress.XtraGrid.Views.Base.InvalidRowExceptionEventArgs e)

{

???? if (e.RowHandle >= 0)

??? {

???? if (this.gridView1.GetRowCellVal(e.RowHandle,this.gridView1.Columns["reg_id"]).ToString().Trim() == "" || this.gridView1.GetRowCellVal(e.RowHandle,this.gridView1.Columns["reg_name"]).ToString().Trim() == "")

???? {

????? if (MyDialog.Alert(" 　您所填写的内容不符合规则n　要放弃您刚才对此项所做的更改吗？",MessageBoxIcon.Warning) == DialogResult.Yes)

????? {

?????? e.ExceptionMode = ExceptionMode.Ignore;

????? }

????? else

????? {

?????? e.ExceptionMode = ExceptionMode.NoAction;

????? }

???? }

??? }

??? else

??? {

???? e.ExceptionMode = ExceptionMode.Ignore;

??? }

（编辑：李大同）

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