DEV控件：gridControl常用屬性設置
1.隱藏最上面的GroupPanel
gridView1.OptionsView.ShowGroupPanel=
false
;
2.得到當前選定記錄某字段的值
sValue=Table.Rows[gridView1.FocusedRowHandle][FieldName].ToString();
3.數據只讀
gridView1.OptionsBehavior.Editable=
false
;
4.不顯示MasterDetailView
gridView1.OptionsDetail.EnableMasterViewMode=
false
;
5.修改最上面的GroupPanel內容
gridView1.GroupPanelText=
"柳生飄絮"
;
6.設置數據源:
gridControl1.DataSource = dt;
綁定每一列的FiledName--屬性
對於Oracle數據庫,所有的在設計器里寫的程序中的字段名必須大寫,否則可能綁定不上字段,sqlserver沒有這個限制.
7.讀寫拷貝權限設置
只讀不可拷貝：
ColumnViewOptionsBehavior.Editable = False
只讀可拷貝:
ColumnViewOptionsBehavior.Editable = True
OptionsColumn.AllowEdit = True
OptionsColumn.ReadOnly = True
可編輯:
ColumnViewOptionsBehavior.Editable = True
OptionsColumn.AllowEdit = True
OptionsColumn.ReadOnly = False
8.模板列的設置:
到Columns中，在他的屬性中找到ColumnEdit.
以LookUpEdit為例：
首先從Designer左邊菜單In-Place Editor Repository中添加LookUpEdit.取名為Re1.然后.在他的Columns屬性中添加3列.Caption依次為:編號,姓名,性別.FieldName依次為:FID,FNAME,FSEX.然后將Re1的NullText設置成空.
AutoSearchColumnIndex屬性設置為2.ImmediatePopup屬性設置為True.
SearchMode設置為OnlyInPopup.
然后將這個模板列附加到我們上面提到的列1(也就是將列1的ColumnEdit屬性設成Re1)
最后我們還要在代碼里面給Re1綁定數據源和顯示項.
Re1.DataSource = DALUse.Query(
"select fid,fname,fsex from dual"
).Tables[0];
Re1.DisplayMember =
"FSEX"
;
Re1.ValueMember =
"FNAME"
;
9.設某一列文字和標題局中顯示
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動篩選功能(Filter)
gridView1.Columns[0].OptionsFilter.AllowAutoFilter =
false
;
gridView1.Columns[0].OptionsFilter.AllowFilter =
false
;
gridView1.Columns[0].OptionsFilter.ImmediateUpdateAutoFilter =
false
;
11.設置凍結列(左凍結)
gridView1.Columns[0].Fixed= DevExpress.XtraGrid.Columns.FixedStyle.Left;
12.得到單元格數據(0行0列)
string
ss=gridView1.GetRowCellDisplayText(0, gridView1.Columns[0]);
string
ss = gridView1.GetRowCellValue(0, gridView1.Columns[0]);
13.設置單元格數據(將0行0列的單元格賦值123)
gridView1.SetRowCellValue(0, gridView1.Columns[0],
"123"
);
13.手動添加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.設置自動增加的行號,需要先添加給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.刪除: (修改了dgvdel里的datagridviewdel方法)
public
static
void
datagridviewdel_Dev(DevExpress.XtraGrid.Views.Grid.GridView Mydgv)
{
if
(MessageBox.Show(
"你確定要刪除選中的記錄嗎？"
,
"刪除提示"
, MessageBoxButtons.YesNo, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button2, 0,
false
) == DialogResult.Yes)
{
int
iSelectRowCount = Mydgv.SelectedRowsCount;
if
(iSelectRowCount > 0)
{
Mydgv.DeleteSelectedRows();
}
}
}
16. 新增: (對於新增,其本身的AddNewRow方法就可以做到)
private
void
btn_add_Click(
object
sender, EventArgs e)
{
gridView1.AddNewRow();
}
具體如果對於新加行還有什么特別的設置,可以在它gridView1_InitNewRow事件中填寫:
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]));
//復制最后一行的數據到新行
View.SetRowCellValue(e.RowHandle, View.Columns[1], gridView1.GetRowCellValue(gridView1.GetRowHandle(gridView1.RowCount - 2), gridView1.Columns[1]));
//復制最后一行的數據到新行
}
17. 保存 (第三方控件提供的RefreshData和RefreshDataSource方法對於保存數據都不好使,最后還是使用了Dgvsave的datagridviewsave方法,用這個方法就可以)
18.特效：gridcontrol中有5種view 型式，普通的是gridview，然后分別為cardview、BandedView、Advanced BandedView、LayoutView；共5種。
1）、view組中把OptionView下的viewmode 設置成“Carousel”就達到這種“旋轉木馬”式的gridcontrol view 特效了
2）、layoutView1.OptionsCarouselMode.PitchAngle 這個屬性決定“旋轉木馬”的pitch angle 螺距角; 螺旋角; 螺旋升角; 俯仰角; 傾角; 節錐半角
3）、Roll Angle 屬性決定着 傾側角度
4）、指定數據源，顯示數據：
//顯示數據
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;
}
//返回圖片的字節流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;
}
19.檢查數據的有效性
在gridview的ValidateRow事件中加入檢查代碼：
#region 檢查數據
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"
],
"必須指定日期"
);
}
}
#endregion
調用gridview.UpdateCurrentRow()方法執行檢查
最常用的DevExpress Winform 4個代碼片段：
一 、GridControl的刪除操作
private
void
rILinkEditInfoDel_Click(
object
sender, EventArgs e)
{
if
(XtraMessageBox.Show(
"請確定是否刪除當前記錄？"
,
"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、綁定非數據表中列
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"
];
}
}
}
}
}
/// <summary>
/// 由資源文件獲取圖片
/// </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>
/// 動態根據條件設置行樣式
/// </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"
]));
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(MinValue);
decimal
gridColumn1 = Convert.ToDecimal(MaxVlaue);
if
(gridColumn2 > AverValue || AverValue > gridColumn1)
{
e.Appearance.ForeColor = Color.Red;
e.Appearance.BackColor = Color.LightGray;
}
}
}
}
}
三、GridControl 中顏色選擇控件
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、關於 GridControl 驗證示例
/**/
/// <summary>
/// 初始化GridView，綁定數據
/// </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 =
"區划編號"
;
this
.gridView1.Columns[
"reg_name"
].Caption =
"區划名稱"
;
this
.gridView1.Columns[
"parent_id"
].Caption =
"父區划編號"
;
this
.gridView1.Columns[
"reg_desc"
].Caption =
"區划描述"
;
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.GetValue(
"RegID"
).ToString().Trim();
DataSet ds = areaSetupActionHelper.getDsRegionByParentId(fid);
RepositoryItemLookUpEdit lookUEParent_Id =
new
RepositoryItemLookUpEdit();
lookUEParent_Id.Columns.Add(
new
LookUpColumnInfo(
"reg_id"
, 40,
"區划編號"
));
lookUEParent_Id.Columns.Add(
new
LookUpColumnInfo(
"reg_name"
, 40,
"區划名稱"
));
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單元格驗證的相關處理程序
/// </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 =
"區划編號不合法！\n應為父區划編號加2～3位數據組成！"
;
}
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 =
"區划名稱應為漢字\n長度為1至20"
;
}
}
}
private
void
gridView1_InvalidValueException(
object
sender, InvalidValueExceptionEventArgs e)
{
if
(MyDialog.Alert(
" 您所填寫的內容不符合規則\n 要放棄您剛才對此項所做的更改嗎？"
,
"您所編輯的內容不符合規則"
, MessageBoxButtons.YesNo, MessageBoxIcon.Warning) == DialogResult.Yes)
{
e.ExceptionMode = ExceptionMode.Ignore;
}
}
/**/
/// <summary>
/// gridView行驗證的相關處理程序
/// </summary>
private
void
gridView1_ValidateRow(
object
sender, 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"
],
"請填寫區划編號!"
, DevExpress.XtraEditors.DXErrorProvider.ErrorType.Default);
// e.ErrorText = "區划名稱不能為空!";
}
if
(regName.Length < 1)
{
e.Valid =
false
;
this
.gridView1.SetColumnError(
this
.gridView1.Columns[
"reg_name"
],
"區划名稱不能為空!"
, 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(
" 您所填寫的內容不符合規則\n 要放棄您剛才對此項所做的更改嗎？"
,
"您所編輯的內容不符合規則"
, MessageBoxButtons.YesNo, MessageBoxIcon.Warning) == DialogResult.Yes)
{
e.ExceptionMode = ExceptionMode.Ignore;
}
else
{
e.ExceptionMode = ExceptionMode.NoAction;
}
}
}
else
{
e.ExceptionMode = ExceptionMode.Ignore;
}
}