DevExpress公司的xtraGrid控制項

提交當前行的修改

using devexpress.xtragrid;

using devexpress.xtragrid.views.base;

using system.data.common;

//...

public void updatedatasource(gridcontrol grid)

public void doupdate(dbdataadapter dataadapter, system.data.datatable datatable) catch(exception ex) }

從非繫結資料來源得到資料

private void form1_load(object sender, system.eventargs e)

// returns the total amount for a specific row.

decimal gettotalvalue(columnview view, int rowhandle)

// provides data for the total column.

private void gridview1_customunboundcolumndata(object sender, devexpress.xtragrid.views.base.customcolumndataeventargs e)

執行時繫結到實現ilist介面的資料來源

public class record

public int id }

public string name

set }

public int age

set }

}

arraylist listdatasource = new arraylist();

listdatasource.add(new record(1, "jane", 19));

listdatasource.add(new record(2, "joe", 30));

listdatasource.add(new record(3, "bill", 15));

listdatasource.add(new record(4, "michael", 42));

gridcontrol1.datasource = listdatasource;

gridcontrol1.mainview.populatecolumns();

自定義列:

[c#]

devexpress.xtragrid.views.base.columnview view = gridcontrol1.mainview as devexpress.xtragrid.views.base.columnview;

dialogresult answer = messagebox.show("do you want to create columns for all fields?", "confirmation", messageboxbuttons.yesno, messageboxicon.question);

if (answer == dialogresult.yes)

view.populatecolumns();

else ;

devexpress.xtragrid.columns.gridcolumn column;

view.columns.clear();

for (int i = 0; i < fieldnames.length; i++) }

gridcolumn主要屬性

property

description

gridcolumn.name

設計時定義的列名

gridcolumn.fieldname

繫結到的資料來源中的列名

gridcolumn.absoluteindex

在grid中的絕對位置索引

gridcolumn.columnhandle

指定關聯資料來源列名的標識，它不一定是唯一的，因為乙個資料來源列可以關聯到乙個grid中的多個列.

手動建立band

// obtaining the main view and clearing its bands collection

bandedgridview view = gridcontrol1.mainview as bandedgridview;

view.bands.clear();

// creating the bands layout

gridband bandgeneral = view.bands.add("general info");

gridband bandtechnical = view.bands.add("technical info");

gridband bandengine = bandtechnical.children.add("engine info");

gridband bandtran**ission = bandtechnical.children.add("tran**ission info");

// assigning columns to bands

coltrademark.ownerband = bandgeneral;

colmodel.ownerband = bandgeneral;

colliter.ownerband = bandengine;

colcylinders.ownerband = bandengine;

colspeedcount.ownerband = bandtran**ission;

coltran**ission.ownerband = bandtran**ission;

如何定位和查詢指定列顯示值的行(注意是列的實顯示值，而不是關聯資料來源列值)

using devexpress.xtragrid.views.base;

using devexpress.xtragrid.columns;

// ...

string searchtext = "japan";

// obtaining the focused view

columnview view = (columnview)gridcontrol1.focusedview;

// obtaining the column bound to the country field

gridcolumn column = view.columns["country"];

if(column != null) }

另乙個查詢示例

devexpress.xtragrid.views.base.columnview view = gridcontrol1.mainview as devexpress.xtragrid.views.base.columnview;

view.beginupdate();

try

} finally

將特定編輯框繫結到列

預設的cell編輯框是不可以改變的，即使是在執行時，因為它們是動態建立和登出的。

要想定製，就在設計時修改columnedit吧。

using devexpress.xtraeditors.repository;

//create a repository item for a combo box editor

repositoryitemcombobox ricombo = new repositoryitemcombobox();

ricombo.items.addrange(new string );

//add the item to the internal repository

gridcontrol1.repositoryitems.add(ricombo);

//now you can define the repository item as an in-place column editor

colcity.columnedit = ricombo;

另乙個執行時繫結列編輯框示例

private void gridview1_customrowcelledit(object sender, devexpress.xtragrid.views.grid.customrowcellediteventargs e) }

檢驗錄入資料是否有效

using devexpress.xtragrid.views.grid;

using devexpress.xtragrid.columns;

public bool isvaliddate(int day, int month, int year)

private void gridview1_validaterow(object sender, devexpress.xtragrid.views.base.validateroweventargs e) }

DevExpress公司的xtraGrid控制項

DevExpress的XtraReport使用積累

DevExpress面板引用的辦法

步入DevExpress的使用（VS）

DevExpress公司的xtraGrid控制項

DevExpress的XtraReport使用積累

DevExpress面板引用的辦法

步入DevExpress的使用（VS）

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