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DEV GridControl小结

时间:2014-06-06 19:13:44      阅读:479      评论:0      收藏:0      [点我收藏+]

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本文转自:http://blog.csdn.net/happy09li/article/details/7186829

 

本文转自:http://blog.csdn.net/happy09li/article/details/7186829

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 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); } } }

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
}

点击打开链接



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

30.合并单元格
设置Gridview的AllowCellMerge属性为ture,然后设置要合并列的AllowCellMerge为True,这样某列相同行内容就会合并了

31.如果要改变单元格样式,如字体颜色,背景什么,像html页面样式。。。。
将ColumnEdit改成repositoryItemRichTextEdit然后ColumnEdit=>DocumentFormat改成html,这样单元格就可以显示跟html一样的样式,很方便

 

DEV GridControl小结,布布扣,bubuko.com

DEV GridControl小结

标签:des   c   style   blog   a   http   

原文地址:http://www.cnblogs.com/iwenwen/p/3766216.html

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