C#Listview中如何显示复选框
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参考技术A在Winform中直接通过CheckBoxes属性设置
在WPF中修改列模板即可:
<ListView Height="162" Canvas.Left="345" Canvas.Top="85" Width="143" ><ListView.View>
<GridView>
<GridViewColumn>
<GridViewColumn.CellTemplate>
<DataTemplate>
<CheckBox />
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
</GridView>
</ListView.View>
</ListView> 参考技术B ListView.CheckBoxes=true; 参考技术C 一、ListView类
1、常用的基本属性:
(1)FullRowSelect:设置是否行选择模式。(默认为false) 提示:只有在Details视图该属性才有意义。
(2) GridLines:设置行和列之间是否显示网格线。(默认为false)提示:只有在Details视图该属性才有意义。
(3)AllowColumnReorder:设置是否可拖动列标头来对改变列的顺序。(默认为false)提示:只有在Details视图该属性才有意义。
(4)View:获取或设置项在控件中的显示方式,包括Details、LargeIcon、List、SmallIcon、Tile(默认为 LargeIcon)
(5)MultiSelect:设置是否可以选择多个项。(默认为false)
(6)HeaderStyle:获取或设置列标头样式。
Clickable:列标头的作用类似于按钮,单击时可以执行操作(例如排序)。
NonClickable:列标头不响应鼠标单击。
None:不显示列标头。
(7)LabelEdit:设置用户是否可以编辑控件中项的标签,对于Detail视图,只能编辑行第一列的内容。(默认为false)
(8)CheckBoxes:设置控件中各项的旁边是否显示复选框。(默认为false)
(9)LargeImageList:大图标集。提示:只在LargeIcon视图使用。
(10)SmallImageList:小图标集。提示:只有在SmallIcon视图使用。
(11)StateImageList:图像蒙板。这些图像蒙板可用作LargeImageList和SmallImageList图像的覆盖图,这些图像可用于指示项的应用程序定义的状态。(暂时不大懂)
(12)SelectedItems:获取在控件中选定的项。
(13)CheckedItems:获取控件中当前复选框选中的项。
(14)Soritng:对列表视图的项进行排序。(默认为None)
Ascending:项按递增顺序排序。
Descending:项按递减顺序排序。
None:项未排序。
(15)Scrollable:设置当没有足够空间来显示所有项时是否显示滚动条。(默认为true)
(16)HoverSelection:设置当鼠标指针悬停于项上时是否自动选择项。(默认为false)
(17)HotTracking:设置当鼠标指针经过项文本时,其外观是否变为超链接的形式。(默认为false)
(18)HideSelection:设置选定项在控件没焦点时是否仍突出显示。(默认为false)
(19)ShowGroups:设置是否以分组方式显示项。(默认为false);
(20)Groups:设置分组的对象集合。
(21)TopItem:获取或设置控件中的第一个可见项,可用于定位。(效果类似于EnsureVisible方法)
2、常用方法:
(1)BeginUpdate:避免在调用EndUpdate 方法之前描述控件。当插入大量数据时,可以有效地避免控件闪烁,并能大大提高速度。
(2)EndUpdate:在BeginUpdate 方法挂起描述后,继续描述列表视图控件。(结束更新)
(3)EnsureVisible:列表视图滚动定位到指定索引项的选项行。(效果类似于TopItem属性)
(4)FindItemWithText:查找以给定文本值开头的第一个 ListViewItem。
(5)FindNearestItem:按照指定的搜索方向,从给定点开始查找下一个项。提示:只有在LargeIcon或SmallIcon视图才能使用该方法。
3、常用事件:
(1)AfterLabelEdit:当用户编辑完项的标签时发生,需要LabelEdit属性为true。
(2)BeforeLabelEdit:当用户开始编辑项的标签时发生。
(3)ColumnClick:当用户在列表视图控件中单击列标头时发生。 参考技术D 用模板?是这样吧
如何使用复选框和自定义适配器从 Listview 中获取选定的列表项?
【中文标题】如何使用复选框和自定义适配器从 Listview 中获取选定的列表项?【英文标题】:How to get selected list items from a Listview with checkBox and Custom Adapter? 【发布时间】:2012-06-10 07:12:29 【问题描述】:我有一个ListView
,上面有CheckBox
。我正在使用Custom Adapter
填充ListView
。
在我的xml
文件中,底部有一个Button
。我想要的是让用户在ListView
中选择行数,当他/她点击Button
时,获取所选项目的位置,以便我可以获取特定行的对象以进行进一步计算。
【问题讨论】:
***.com/questions/10895763/… 【参考方案1】:Below Snippet 完全符合您的要求。
package com.windrealm.android;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
public class PlanetsActivity extends Activity
private ListView mainListView;
private Planet[] planets;
private ArrayAdapter<Planet> listAdapter;
private Button check;
private Context context;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
context = PlanetsActivity.this;
check = (Button) findViewById(R.id.check);
// Find the ListView resource.
mainListView = (ListView) findViewById(R.id.mainListView);
// When item is tapped, toggle checked properties of CheckBox and
// Planet.
mainListView
.setOnItemClickListener(new AdapterView.OnItemClickListener()
@Override
public void onItemClick(AdapterView<?> parent, View item,
int position, long id)
Planet planet = listAdapter.getItem(position);
planet.toggleChecked();
PlanetViewHolder viewHolder = (PlanetViewHolder) item
.getTag();
viewHolder.getCheckBox().setChecked(planet.isChecked());
);
// Create and populate planets.
planets = (Planet[]) getLastNonConfigurationInstance();
if (planets == null)
planets = new Planet[]
new Planet("Mercury"), new Planet("Venus"), new Planet("Earth"),
new Planet("Mars"), new Planet("Jupiter"),
new Planet("Saturn"), new Planet("Uranus"),
new Planet("Neptune"), new Planet("Ceres"),
new Planet("Pluto"), new Planet("Haumea"),
new Planet("Makemake"), new Planet("Eris") ;
ArrayList<Planet> planetList = new ArrayList<Planet>();
planetList.addAll(Arrays.asList(planets));
// Set our custom array adapter as the ListView's adapter.
listAdapter = new PlanetArrayAdapter(this, planetList);
mainListView.setAdapter(listAdapter);
check.setOnClickListener(new OnClickListener()
@Override
public void onClick(View view)
for (int i = 0; i < listAdapter.getCount(); i++)
Planet planet = listAdapter.getItem(i);
if (planet.isChecked())
Toast.makeText(context,
planet.getName() + " is Checked!!",
Toast.LENGTH_SHORT).show();
);
/** Holds planet data. */
private static class Planet
private String name = "";
private boolean checked = false;
public Planet()
public Planet(String name)
this.name = name;
public Planet(String name, boolean checked)
this.name = name;
this.checked = checked;
public String getName()
return name;
public void setName(String name)
this.name = name;
public boolean isChecked()
return checked;
public void setChecked(boolean checked)
this.checked = checked;
public String toString()
return name;
public void toggleChecked()
checked = !checked;
/** Holds child views for one row. */
private static class PlanetViewHolder
private CheckBox checkBox;
private TextView textView;
public PlanetViewHolder()
public PlanetViewHolder(TextView textView, CheckBox checkBox)
this.checkBox = checkBox;
this.textView = textView;
public CheckBox getCheckBox()
return checkBox;
public void setCheckBox(CheckBox checkBox)
this.checkBox = checkBox;
public TextView getTextView()
return textView;
public void setTextView(TextView textView)
this.textView = textView;
/** Custom adapter for displaying an array of Planet objects. */
private static class PlanetArrayAdapter extends ArrayAdapter<Planet>
private LayoutInflater inflater;
public PlanetArrayAdapter(Context context, List<Planet> planetList)
super(context, R.layout.simplerow, R.id.rowTextView, planetList);
// Cache the LayoutInflate to avoid asking for a new one each time.
inflater = LayoutInflater.from(context);
@Override
public View getView(int position, View convertView, ViewGroup parent)
// Planet to display
Planet planet = (Planet) this.getItem(position);
// The child views in each row.
CheckBox checkBox;
TextView textView;
// Create a new row view
if (convertView == null)
convertView = inflater.inflate(R.layout.simplerow, null);
// Find the child views.
textView = (TextView) convertView
.findViewById(R.id.rowTextView);
checkBox = (CheckBox) convertView.findViewById(R.id.CheckBox01);
// Optimization: Tag the row with it's child views, so we don't
// have to
// call findViewById() later when we reuse the row.
convertView.setTag(new PlanetViewHolder(textView, checkBox));
// If CheckBox is toggled, update the planet it is tagged with.
checkBox.setOnClickListener(new View.OnClickListener()
public void onClick(View v)
CheckBox cb = (CheckBox) v;
Planet planet = (Planet) cb.getTag();
planet.setChecked(cb.isChecked());
);
// Reuse existing row view
else
// Because we use a ViewHolder, we avoid having to call
// findViewById().
PlanetViewHolder viewHolder = (PlanetViewHolder) convertView
.getTag();
checkBox = viewHolder.getCheckBox();
textView = viewHolder.getTextView();
// Tag the CheckBox with the Planet it is displaying, so that we can
// access the planet in onClick() when the CheckBox is toggled.
checkBox.setTag(planet);
// Display planet data
checkBox.setChecked(planet.isChecked());
textView.setText(planet.getName());
return convertView;
public Object onRetainNonConfigurationInstance()
return planets;
【讨论】:
【参考方案2】:要解决这个问题,您必须创建一个自定义 Item 类,该类将代表您在列表中的各个复选框。然后适配器类将使用这些项目的数组来显示您的复选框。
这个 Item 类将有一个布尔变量 isSelected,它将确定复选框是否被选中。您必须在自定义适配器类的 OnClick 方法中设置此变量的值
举例
class CheckBoxItem
boolean isSelected;
public void setSelected(boolean val)
this.isSelected = val;
boolean isSelected()
return isSelected;
对于您的 CustomAdapter 类,如下所示:
public class ItemsAdapter extends ArrayAdapter implements OnClickListener
// you will have to initialize below in the constructor
CheckBoxItem items[];
// You will have to create your check boxes here and set the position of your check box
/// with help of setTag method of View as defined in below method, you will use this later // in your onClick method
@Override
public View getView(int position, View convertView, ViewGroup parent)
View v = convertView;
CheckBox cBox = null;
if (v == null)
LayoutInflater vi = (LayoutInflater) apUI.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.attachphoto, null);
CheckBoxItemItem it = items[position];
cBox =(CheckBox) v.findViewById(R.id.apCheckBox);
cBox.setOnClickListener(this);
cBox.setTag(""+position);
Log.d(TAG, " CHECK BOX IS: "+cBox+ " Check Box selected Value: "+cBox.isChecked()+" Selection: "+it.isSelected());
if(cBox != null)
cBox.setText("");
cBox.setChecked(it.isSelected());
return v;
public void onClick(View v)
CheckBox cBox =(CheckBox) v.findViewById(R.id.apCheckBox);
int position = Integer.parseInt((String) v.getTag());
Log.d(TAG, "CLicked ..."+cBox.isChecked());
items[position].setSelected(cBox.isChecked());
稍后您将声明 CheckBoxItem 类的数组,该类将包含在您的 Adapter 类中,在这种情况下,它将是 ItemsAdapter 类。
然后当用户按下按钮时,您可以遍历数组中的所有项,并使用 CheckBoxItem 类的 isSelected() 方法检查选择了哪一项。
在您的活动中,您将拥有:
ArrayList getSelectedItems()
ArrayList selectedItems = new ArrayList();
int size = items.length;
for(int i = 0; i<size; i++)
CheckBoxItem cItem = items[i];
if(cItem.isSelected())
selectedItems.add(cItem);
return selectedItems;
【讨论】:
【参考方案3】:我遇到了完全相同的问题。我是这样解决的
public class myActivity extends Activity
//ActionBarSherlock mSherlock = ActionBarSherlock.wrap(this);
public ListView listview;
private ArrayList<Object> itemlist=new ArrayList<Object>();
Button button;
private myAdapter adapter;
@Override
public void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listview=(ListView)findViewById(R.id.listview1);
button=(Button)findViewById(R.id.button1);
/*add some data to ur list*/ itemlist.add(something);
adapter=new Adapter(myActivity.this, 0, itemlist);
listview.setAdapter(adapter);
**listview.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
listview.setItemsCanFocus(false);**
button.setOnClickListner(new OnClickListner()
@Override
public void OnClick(View v)
/* this returns the checked item positions in the listview*/
**ArrayList<Integer> itempositions=adapter.getcheckeditemcount();**
for(int i:itempositions)
/* This is the main part...u can retrieve the object in the listview which is checked and do further calculations with it*/
**Object info=adapter.getItem(i);**
Log.d(TAG,"checked object info= ",info.something);
);
private class myAdapter extends ArrayAdapter<Object>
private Context context;
private ArrayList<Object> list;
**private ArrayList<Integer> checkedpositions;**
public myAdapter(Context localContext,int textViewResourceId, ArrayList<Object> objects)
super(localContext,textViewResourceId,objects);
context = localContext;
this.list=objects;
this.checkedpositions=new ArrayList<Integer>();
//Log.d("adapter","list size= "+objects.size());
@Override
public View getView(int position, View convertView, ViewGroup parent)
ImageView picturesView;
View v = convertView;
TextView Mainitem;
final CheckBox check;
if (v == null)
LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.albumview, null);
Object item=list.get(position);
if(item!=null)
check = (CheckBox)v.findViewById(R.id.checkBox1);
/* set a tag for chekbox with the current view position */
**check.setTag(position);**
/*set a onchecked change listner for listning to state of checkbox toggle */
check.setOnCheckedChangeListener(new OnCheckedChangeListener()
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
/*get the tag of the checkbox...in this case this will give the (position of view)*/
Object tag=check.getTag();
if ( isChecked )
// perform logic
count++;
Log.d("Checkbox","added "+tag);
checkedpositions.add((Integer) tag);
else
count--;
checkedpositions.remove(tag);
Log.d("Checkbox","removed "+(Integer)tag);
/* if u dont have a textview in ur listview then ignore this part */
Mainitem = (TextView) v.findViewById(R.id.textView1);
Mainitem.setText(item.Album_name);
catch (IOException e)
// TODO Auto-generated catch block
Log.d("error", "wall");
return v;
/* Finally create a method which return the checkeditem postions in the listview */
**public ArrayList<Integer> getcheckeditemcount()
return this.checkedpositions;
**
我希望这会有所帮助。
【讨论】:
【参考方案4】:在customadapter的getview方法中,做
//use the actual id of your checkbox of course
Checkbox checkbox = (CheckBox)findViewById(R.id.checkbox);
checkbox.setFocusable(false);
checkbox.setFocusableInTouchMode(false);
现在复选框和列表项一样可以点击。
【讨论】:
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