[转载]DevExpress GridControl 使用方法技巧 总结 收录整理

最近开始用DevExpress组件,发现很好的经验总结博客,在这里转载分享

原作者:https://www.cnblogs.com/wordgao/p/4517011.html

一、如何解决单击记录整行选中的问题

View->OptionsBehavior->EditorShowMode 设置为：Click

二、如何新增一条记录

(1)、gridView.AddNewRow()

(2)、实现gridView_InitNewRow事件

三、如何解决GridControl记录能获取而没有显示出来的问题

gridView.populateColumns();

四、如何让行只能选择而不能编辑（或编辑某一单元格）

(1)、View->OptionsBehavior->EditorShowMode 设置为：Click

(2)、View->OptionsBehavior->Editable 设置为：false

五、如何禁用GridControl中单击列弹出右键菜单

设置Run Design->OptionsMenu->EnableColumnMenu 设置为：false

1、gridControl如何去掉主面板？

鼠标右键Run Designer=》OptionsView =》 ShowGroupPanel=False；

2、gridControl如何设置列自动宽度？

鼠标右键Run Designer=》OptionsView=》ColumnAutoWidth=True；

3、gridControl如何设置单元格不可编辑？

鼠标右键Run Designer=》OptionsBehavior 》Editable=False；

4.修改最上面的GroupPanel内容

gridView1.GroupPanelText=”盼盼”;
获得选中了多少行？

1、 如何解决单击记录整行选中的问题

View->OptionsBehavior->EditorShowMode 设置为：Click

2、 如何新增一条记录

(1)、gridView.AddNewRow()

(2)、实现 gridView_InitNewRow 事件

3、如何解决 GridControl 记录能获取而没有显示出来的问题

gridView.populateColumns();

4、如何让行只能选择而不能编辑（或编辑某一单元格）

(1)、View->OptionsBehavior->EditorShowMode
设置为：Click

(2)、View->OptionsBehavior->Editable
设置为：false

5、如何禁用 GridControl 中单击列弹出右键菜单

设置 Run Design->OptionsMenu->EnableColumnMenu 设置为：false

6、如何隐藏 GridControl 的 GroupPanel 表头

设置 Run Design->OptionsView->ShowGroupPanel 设置为：false

7、如何禁用 GridControl 中列头的过滤器 过滤器如下图所示：

设置 Run Design->OptionsCustomization->AllowFilter 设置为：false

8、如何在查询得到 0 条记录时显示自定义的字符提示/显示 如图所示：

方法如下：

//When no Records
Are Being Displaye

private void
gridView1_CustomDrawEmptyForeground(object sender, CustomDrawEventArgs e)

{

//方法一（此方法为GridView设置了数据源绑定时，可用）

ColumnView columnView = sender as
ColumnView;

BindingSource
bindingSource = this.gridView1.DataSource
as BindingSource;

if(bindingSource.Count == 0)

{

string str = "没有查询到你所想要的数据!";

Font f = new Font("宋体", 10, FontStyle.Bold);

Rectangle r = new
Rectangle(e.Bounds.Top + 5, e.Bounds.Left + 5, e.Bounds.Right - 5,
e.Bounds.Height - 5);

e.Graphics.DrawString(str,
f, Brushes.Black, r); }

//方法二（此方法为GridView没有设置数据源绑定时，使用，一般使用此种方
法）

if (this._flag)

{ if (this.gridView1.RowCount
== 0)

{ string str = "没有查询到你所想要的数据!"; Font f = new Font("宋体", 10, FontStyle.Bold);

Rectangle r = new
Rectangle(e.Bounds.Left + 5, e.Bounds.Top + 5, e.Bounds.Width - 5,
e.Bounds.Height - 5);

e.Graphics.DrawString(str,
f, Brushes.Black, r); } } }

六、如何隐藏GridControl的GroupPanel表头

设置Run
Design->OptionsView->ShowGroupPanel 设置为：false

七、如何禁用GridControl中列头的过滤器

过滤器如下图所示：

DevExpress GridControl使用方法总结

设置 Run Design->OptionsCustomization->AllowFilter 设置为：false

八、如何在查询得到0条记录时显示自定义的字符提示/显示

如图所示：

DevExpress GridControl使用方法总结

方法如下：

//When no Records
Are Being Displayed

private void gridView1_CustomDrawEmptyForeground(object sender,
CustomDrawEventArgs e)

{

//方法一（此方法为GridView设置了数据源绑定时，可用）

ColumnView columnView = sender as ColumnView;

BindingSource bindingSource = this.gridView1.DataSource
as BindingSource;

if(bindingSource.Count == 0)

{

string str = "没有查询到你所想要的数据!";

Font f = new Font("宋体", 10,
FontStyle.Bold);

Rectangle r = new Rectangle(e.Bounds.Top + 5, e.Bounds.Left + 5,
e.Bounds.Right - 5, e.Bounds.Height - 5);

e.Graphics.DrawString(str, f,
Brushes.Black, r);

}

//方法二（此方法为GridView没有设置数据源绑定时，使用，一般使用此种方法）

if (this._flag)

{

if (this.gridView1.RowCount == 0)

{

string str = "没有查询到你所想要的数据!";

Font f = new Font("宋体", 10,
FontStyle.Bold);

Rectangle r = new
Rectangle(e.Bounds.Left + 5, e.Bounds.Top + 5, e.Bounds.Width - 5,
e.Bounds.Height - 5);

e.Graphics.DrawString(str, f,
Brushes.Black, r);

}

}

}

九、如何显示水平滚动条？

设置this.gridView.OptionsView.ColumnAutoWidth
= false;

十、如何定位到第一条数据/记录？

设置 this.gridView.MoveFirst()

十一、如何定位到下一条数据/记录？

设置 this.gridView.MoveNext()

十二、如何定位到最后一条数据/记录？

设置 this.gridView.MoveLast()

十三、设置成一次选择一行，并且不能被编辑

this.gridView1.FocusRectStyle =
DevExpress.XtraGrid.Views.Grid.DrawFocusRectStyle.RowFocus;

this.gridView1.OptionsBehavior.Editable = false;

this.gridView1.OptionsSelection.EnableAppearanceFocusedCell =
false;

十四、如何显示行号？

this.gridView1.IndicatorWidth = 40;

//显示行的序号

private void
gridView1_CustomDrawRowIndicator(object sender, RowIndicatorCustomDrawEventArgs e)

{

if (e.Info.IsRowIndicator && e.RowHandle>=0)

{

e.Info.DisplayText = (e.RowHandle + 1).ToString();

}

}

十五、如何让各列头禁止移动？

设置gridView1.OptionsCustomization.AllowColumnMoving
= false;

十六、如何让各列头禁止排序？

设置gridView1.OptionsCustomization.AllowSort
= false;

十七、如何禁止各列头改变列宽？

设置gridView1.OptionsCustomization.AllowColumnResizing
= false;

Normal 0 7.8 磅 0 2 false false false EN-US
ZH-CN X-NONE

DEV控件：gridControl常用属性设置

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="电子灵魂";

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-PlaceEditor 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=newDevExpress.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(objectsender,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
voiddatagridviewdel_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, 0, false) == DialogResult.Yes)

{

intiSelectRowCount = 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.GetRowCellValue(gridView1.GetRowHandle(gridView1.RowCount
- 2),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、AdvancedBandedView、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gridcontrolview
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
voidshowData(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(stringimagePath)

{

FileStreamfiles = new FileStream(imagePath, FileMode.Open);

byte[]imgByte = new byte [files.Length ];

files.Read(imgByte, 0, imgByte.Length);

files.Close();

returnimgByte;

}

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, ValidateRowEventArgse)

{

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",MessageBoxButtons.YesNo, 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.CustomColumnDataEventArgse)

{

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"]));

objectMinValue = View.GetRowCellValue(e.RowHandle,View.Columns["MinValue"]);

objectMaxVlaue = 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"];

}

}

}

}

}

/// <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);

returnDevExpress.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.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"]));

objectMinValue = View.GetRowCellValue(e.RowHandle,View.Columns["MinValue"]);

objectMaxVlaue = 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(MinValue);

decimal gridColumn1 = Convert.ToDecimal(MaxVlaue);

if (gridColumn2 >
AverValue || AverValue > 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.Value = DevExpress.Utils.StyleLayout.ColorFromString(strVal);

e.Value =
Common.HexToColor(strVal);

}

}

else

{

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

Color colorVal =(Color)e.Value;

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 = newRepositoryItemTextEdit();

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.GetValue("RegID").ToString().Trim();

DataSet ds =areaSetupActionHelper.getDsRegionByParentId(fid);

RepositoryItemLookUpEdit lookUEParent_Id = newRepositoryItemLookUpEdit();

lookUEParent_Id.Columns.Add(newLookUpColumnInfo("reg_id", 40, "区划编号"));

lookUEParent_Id.Columns.Add(newLookUpColumnInfo("reg_name", 40, "区划名称"));

lookUEParent_Id.DataSource = ds.Tables[0].DefaultView;

lookUEParent_Id.ValueMember = "reg_id";

lookUEParent_Id.DisplayMember = "reg_id";

this.gridView1.Columns["parent_id"].ColumnEdit
=lookUEParent_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(objectsender,
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(@"[\u4e00-\u9fa5]{1,20}");

Match m=reg.Match(e.Value.ToString().Trim());

if (m.Length !=
e.Value.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_InvalidValueException(objectsender,
InvalidValueExceptionEventArgs 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", MessageBoxButtons.YesNo,
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(objectsender,
DevExpress.XtraGrid.Views.Base.ValidateRowEventArgs e)

{

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

string regName = this.gridView1.GetRowCellValue(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.GetRowCellValue(e.RowHandle,this.gridView1.Columns["reg_id"]).ToString().Trim()
== ""|| this.gridView1.GetRowCellValue(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？","您所编辑的内容不符合规则", MessageBoxButtons.YesNo,MessageBoxIcon.Warning) == DialogResult.Yes)

{

e.ExceptionMode = ExceptionMode.Ignore;

}

else

{

e.ExceptionMode = ExceptionMode.NoAction;

}

}

}

else

{

e.ExceptionMode = ExceptionMode.Ignore;

}

}

view plaincopy to
clipboardprint?

//获取焦点行任意单元格的数据

ColumnView cv = (ColumnView)gridControl_Gongzi.FocusedView;//重新获取此ID 否则无法从表头连删获取不到id

int focusedhandle =
cv.FocusedRowHandle;

object rowIdObj = gridView1.GetRowCellValue(focusedhandle,"id");

if (DBNull.Value
!= rowIdObj)

{

FocusedRow_id =
Convert.ToInt32(rowIdObj);

}

//获取焦点行任意单元格的数据

ColumnView cv =
(ColumnView)gridControl_Gongzi.FocusedView;//重新获取此ID 否则无法从表头连删获取不到id

int
focusedhandle = cv.FocusedRowHandle;

object rowIdObj = gridView1.GetRowCellValue(focusedhandle, "id");

if
(DBNull.Value != rowIdObj)

{

FocusedRow_id = Convert.ToInt32(rowIdObj);

}

view plaincopy to clipboardprint?

//当数据发生变化时执行

private void gridView1_CellValueChanged(object
sender,CellValueChangedEventArgs e)

{

int intRowHandle =e.RowHandle;

FocusedRow_bumen =Convert.ToString(gridView1.GetRowCellValue(intRowHandle,"bumen"));

FocusedRow_xingming =Convert.ToString(gridView1.GetRowCellValue(intRowHandle,"xingming"));

//FocusedRow_jibengongzi =Convert.ToDecimal(gridView1.GetRowCellValue(intRowHandle,"jibengongzi"));

object
rowJibengongziObj =gridView1.GetRowCellValue(intRowHandle, "jibengongzi");

if (DBNull.Value !=rowJibengongziObj)

{

FocusedRow_jibengongzi =
Convert.ToDecimal(rowJibengongziObj);

}

}

//当数据发生变化时执行

private
voidgridView1_CellValueChanged(object sender, CellValueChangedEventArgs e)

{

int intRowHandle= e.RowHandle;

FocusedRow_bumen =
Convert.ToString(gridView1.GetRowCellValue(intRowHandle,"bumen"));

FocusedRow_xingming =
Convert.ToString(gridView1.GetRowCellValue(intRowHandle,"xingming"));

//FocusedRow_jibengongzi
=Convert.ToDecimal(gridView1.GetRowCellValue(intRowHandle,"jibengongzi"));

objectrowJibengongziObj =
gridView1.GetRowCellValue(intRowHandle,"jibengongzi");

if(DBNull.Value != rowJibengongziObj)

{

FocusedRow_jibengongzi =
Convert.ToDecimal(rowJibengongziObj);

}

} view plaincopy toclipboardprint?

//设置焦点行的焦点单元格的位置

ColumnView view = (ColumnView)gridControl_Gongzi.FocusedView;

view.FocusedColumn = view.Columns["bumen"];

//设置焦点行的焦点单元格的位置

ColumnView view = (ColumnView)gridControl_Gongzi.FocusedView;

view.FocusedColumn = view.Columns["bumen"]; view
plaincopy toclipboardprint?

//当焦点行发生改变时执行 获取选中焦点行id

private
void gridView1_FocusedRowChanged(object sender,
DevExpress.XtraGrid.Views.Base.FocusedRowChangedEventArgse)

{

int intRowHandle =e.FocusedRowHandle;

object rowIdObj
=gridView1.GetRowCellValue(intRowHandle, "id");

if (DBNull.Value!=
rowIdObj)//做个判断否则获取不到id后报错

{

FocusedRow_id =
Convert.ToInt32(rowIdObj);

}

}

//当焦点行发生改变时执行 获取选中焦点行id

private
void gridView1_FocusedRowChanged(object
sender,DevExpress.XtraGrid.Views.Base.FocusedRowChangedEventArgs e)

{

intintRowHandle = e.FocusedRowHandle;

objectrowIdObj = gridView1.GetRowCellValue(intRowHandle, "id");

if(DBNull.Value !=
rowIdObj)//做个判断否则获取不到id后报错

{

FocusedRow_id = Convert.ToInt32(rowIdObj);

}

}

view plaincopy to clipboardprint?

//焦点行的FocusedHandle为：

FocuseRow_Handle = -999998;

//获取焦点行的handle

ColumnView newview =
(ColumnView)gridControl_Gongzi.FocusedView;

FocuseRow_Handle =
newview.FocusedRowHandle;

//回车添加新行

private void gridView1_KeyPress(object sender, KeyPressEventArgse)

{

if(e.KeyChar == 13)

{

ColumnView view =
(ColumnView)gridControl_Gongzi.FocusedView;

if(view.IsLastRow)

{

if (FocuseRow_Handle
== 0)

{

gridView1.AddNewRow();

ColumnView newview =
(ColumnView)gridControl_Gongzi.FocusedView;

newview.FocusedColumn = newview.Columns["bumen"];//定位焦点网格的位置

FocuseRow_Handle = newview.FocusedRowHandle;//获取新焦点行的FocuseRowHandle并初始化全局变量FocuseRow_Handle供保存操作时判断是update还是insert

9、如何显示水平滚动条？或

设置 this.gridView.OptionsView.ColumnAutoWidth = false;

.....列表宽度自适应内容

gridview1.BestFitColumns();

10、如何定位到第一条数据/记录？

设置 this.gridView.MoveFirst()

11、如何定位到下一条数据/记录？
设置 this.gridView.MoveNext()

12、如何定位到最后一条数据/记录？

设置 this.gridView.MoveLast()

13、设置成一次选择一行，并且不能被编辑

this.gridView1.FocusRectStyle =
DevExpress.XtraGrid.Views.Grid.DrawFocusRectStyle.RowFocus;

this.gridView1.OptionsBehavior.Editable = false;

this.gridView1.OptionsSelection.EnableAppearanceFocusedCell =
false;

14、如何显示行号？

private void
gvPayList_CustomDrawRowIndicator(object sender,
DevExpress.XtraGrid.Views.Grid.RowIndicatorCustomDrawEventArgs e)

{

e.Appearance.TextOptions.HAlignment
=
DevExpress.Utils.HorzAlignment.Far;

if
(e.Info.IsRowIndicator)

{

if (e.RowHandle
>= 0)

{

e.Info.DisplayText = (e.RowHandle + 1).ToString();

}

else if (e.RowHandle < 0
&& e.RowHandle > -1000)

{

e.Info.Appearance.BackColor
=
System.Drawing.Color.AntiqueWhite;

e.Info.DisplayText = "G" + e.RowHandle.ToString();

}

}

}

15、如何让各列头禁止移动？

设置 gridView1.OptionsCustomization.AllowColumnMoving = false;

16、如何让各列头禁止排序？

设置 gridView1.OptionsCustomization.AllowSort = false;

17、如何禁止各列头改变列宽？

设置 gridView1.OptionsCustomization.AllowColumnResizing = false;

18.拖动滚动条时固定某一列

设置Columns，选择要固定的列。设置Fixed属性，可以选择：固定在左边、固定在右边、不固定。

19.获取选定行,指定列单元格的内容

return gridView1.GetRowCellValue(pRows[0],
ColumName).ToString ();

20.分组显示

OptionsView>OptionsBehavior>AutoExpandAllGroups = True
选择要分组的列，将GroupIndex属性设置为0

21.格式化数据

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

{

if (this.gvList.FocusedColumn.FieldName == "passQty")

{

string passQty = e.Value.ToString().Trim();

int receiveQty =
orderDetailList[this.gvList.FocusedRowHandle].qty;

if (!JXType.IsIntBigThanZero(passQty))

{

e.Valid = false;

e.ErrorText = "合格数量必须为大于等于0小于等于接货数量的整数！";

}

else

{

if (int.Parse(passQty) >
receiveQty)

{

e.Valid = false;

e.ErrorText = "合格数量必须为大于0小于等于接货数量的整数！";

}

}

}

}

22.合并表头

///初始化表格

using DevExpress.XtraGrid.Columns;

using DevExpress.XtraGrid.Views.Base;

using DevExpress.XtraGrid.Views.BandedGrid;

using DevExpress.XtraEditors.Repository;

private void InitGrid()

{

// advBandedGridView1是表格上的默认视图，注意这里声明的是：BandedGridView

BandedGridView view =
advBandedGridView1 as
BandedGridView;

view.BeginUpdate(); //开始视图的编辑，防止触发其他事件

view.BeginDataUpdate(); //开始数据的编辑

view.Bands.Clear();

view.OptionsView.ShowColumnHeaders = false;                         //因为有Band列了，所以把ColumnHeader隐藏

//添加列标题

//添加列标题

GridBand bandID =
view.Bands.AddBand("ID");

bandID.Visible = false; //隐藏ID列

GridBand bandName =
view.Bands.AddBand("姓名");

GridBand bandSex = view.Bands.AddBand("性别");

GridBand bandBirth = view.Bands.AddBand("出生日期");

GridBand bandScore = view.Bands.AddBand("分数");

GridBand bandMath = bandScore.Children.AddBand("数学");

GridBand bandChinese = bandScore.Children.AddBand("语文");

GridBand bandEnglish = bandScore.Children.AddBand("英语");

GridBand bandSubTotal = bandScore.Children.AddBand("小计");

GridBand bandRemark = view.Bands.AddBand("备注");

bandFile.AppearanceHeader.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;//这是合并表头居中显示

view.EndDataUpdate();//结束数据的编辑

view.EndUpdate();   //结束视图的编辑

}

具体可看

dev gridcontrol 合并表头

23.   //动态添加列

DevExpress.XtraGrid.Columns.GridColumn
Col1 = new
DevExpress.XtraGrid.Columns.GridColumn();

Col1.FieldName = "name";

Col1.Caption = "名字";

Col1.Visible = false;

Col1.VisibleIndex = gvCountry.Columns.Count;

gvCountry.Columns.Add(Col1);

24。设置自动增加的行号

private void
gridview_CustomDrawRowIndicator(object sender,DevExpress.XtraGrid.Views.Grid.RowIndicatorCustomDrawEventArgs
e)

{

e.Appearance.TextOptions.HAlignment
=
DevExpress.Utils.HorzAlignment.Far;

if
(e.Info.IsRowIndicator)

{

if (e.RowHandle
>= 0)

{

e.Info.DisplayText = (e.RowHandle + 1).ToString();

}

else if (e.RowHandle < 0
&& e.RowHandle > -1000)

{

e.Info.Appearance.BackColor
=
System.Drawing.Color.AntiqueWhite;

e.Info.DisplayText = "G" + e.RowHandle.ToString();

}

}

｝

25.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, 0, imgByte.Length);

files.Close();

return
imgByte;

}

26.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");

}

}

27.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;

28.列表过滤条件多选

列名.OptionsFilter.FilterPopupMode=
DevExpress.XtraGrid.Columns.FilterPopupMode.CheckedList

29.隔行换色的方法

this.gridView1.Appearance.OddRow.BackColor =
Color.White;  //
设置奇数行颜色 // 默认也是白色 可以省略

this.gridView1.OptionsView.EnableAppearanceOddRow = true;   // 使能 // 和和上面绑定 同时使用有效

this.gridView1.Appearance.EvenRow.BackColor =
Color.WhiteSmoke; // 设置偶数行颜色

this.gridView1.OptionsView.EnableAppearanceEvenRow = true;   // 使能 // 和和上面绑定 同时使用有效