delphi listview结合adapter适配器显示数据的代码
时间: 2023-11-30 09:05:13 浏览: 175
在Delphi中,可以使用TListView组件来显示数据,并通过TAdapterBindSource和TAdapterListViewAdapter来实现数据的绑定和显示。下面是一个简单的示例代码:
```delphi
unit MainForm;
interface
uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Data.Bind.GenData, Data.Bind.EngExt,
Vcl.Bind.DBEngExt, System.Rtti, System.Bindings.Outputs, Vcl.Bind.Editors,
Data.Bind.Components, Data.Bind.Grid, Vcl.Grids, Data.Bind.ObjectScope,
Vcl.StdCtrls, Vcl.ExtCtrls, Vcl.Bind.Navigator;
type
TForm1 = class(TForm)
ListView1: TListView;
Button1: TButton;
procedure FormCreate(Sender: TObject);
procedure Button1Click(Sender: TObject);
private
FPersonList: TObjectList<TPerson>;
procedure LoadData;
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
uses
System.Generics.Collections;
type
TPerson = class
FirstName: string;
LastName: string;
Age: Integer;
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
FPersonList := TObjectList<TPerson>.Create;
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
LoadData;
ListView1.Items.Clear;
ListView1.ItemAppearanceObjects.ItemObjects.Text.Text := 'FirstName';
ListView1.ItemAppearanceObjects.ItemObjects.Detail.Text := 'LastName';
ListView1.ItemAppearanceObjects.ItemObjects.Accessory.Text := 'Age';
ListView1.Adapter := TListBindSourceAdapter<TPerson>.Create(Self, FPersonList);
end;
procedure TForm1.LoadData;
var
Person: TPerson;
begin
Person := TPerson.Create;
Person.FirstName := 'John';
Person.LastName := 'Doe';
Person.Age := 25;
FPersonList.Add(Person);
Person := TPerson.Create;
Person.FirstName := 'Jane';
Person.LastName := 'Smith';
Person.Age := 30;
FPersonList.Add(Person);
end;
end.
```
在上述代码中,首先在FormCreate事件中创建了一个TObjectList<TPerson>对象,用于存储要显示的数据。在Button1Click事件中,通过LoadData方法加载数据,并将数据绑定到ListView上。
在ListView的ItemAppearanceObjects属性中,设置了各个子项的显示内容,例如Text.Text对应FirstName,Detail.Text对应LastName,Accessory.Text对应Age。
最后,使用TListBindSourceAdapter<TPerson>类来创建适配器,并将其赋值给ListView的Adapter属性,即可实现数据的绑定和显示。
请注意,在使用TAdapterBindSource和TAdapterListViewAdapter时,需要在uses中添加Data.Bind.GenData单元,并在项目中引用LiveBindings及相关包文件。
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