小编Tre*_*lut的帖子

我有TextView以下分配代码:

Answer1TextView = (TextView) findViewById(R.id.editText1);
Answer1TextView.setOnClickListener(answer1TextViewListener);

这是我的onClickListener:

private  OnClickListener answer1TextViewListener = new OnClickListener() 
{
    public void onClick(View v) 
    {
        if(Answer1Win){
            Toast.makeText(QuizScreen.this,"Correct ",2).show();
        } else
        {
            Toast.makeText(QuizScreen.this,"Incorrect, Pick Another Answer",2).show();
        }
    }
};  

我的问题是双击后只显示Toast.我找不到设置驱动器这种行为,单击后不能显示的设置错误.

在我使用Visual Studio 11 Express Beta编写的Windows 8应用程序中,我无法使用ArrayList.这是我的代码:

using System.Collections;


ArrayList al = new ArrayList();

编译错误:

找不到类型或命名空间名称'ArrayList'(您是否缺少using指令或程序集引用？)

这是新的东西吗？我喜欢ArrayLists :)

我试图找回之间的所有文字<td>和</td>,但我只得到我的集合中的第一场比赛.我需要一个*什么东西吗？这是我的代码.

string input = @"<tr class=""row0""><td>09/08/2013</td><td><a href=""/teams/nfl/new-england-patriots/results"">New England Patriots</a></td><td><a href=""/boxscore/2013090803"">L, 23-21</a></td><td align=""center"">0-1-0</td><td align=""right"">65,519</td></tr>";

string pattern = @"(?<=<td>)[^>]*(?=</td>)";
MatchCollection matches = Regex.Matches(input, pattern);
foreach (Match match in matches)
{
    try
    {
        listBoxControl1.Items.Add(matches.ToString());
    }
    catch { }
}

我想剥离html标签,只返回标签之间的文本.这是我目前正在使用的.

string regularExpressionPattern1 = @"<td(.*?)<\/td>";
Regex regex = new Regex(regularExpressionPattern1, RegexOptions.Singleline);
MatchCollection collection = regex.Matches(value.ToString());

我现在得到了<td>13</td>,我只想要13.

谢谢,

如何更改添加到项目的项目的文本颜色ListView.我需要根据某些条件在代码中以编程方式更改颜色,并将不同的行更改为不同的文本颜色(例如,行0 =红色,行1 =白色,行3 =蓝色等).在xml布局中设置文本颜色将不符合我的要求.这是我的代码:

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.listview);

    setListAdapter(new ArrayAdapter<String>(ListViewEx.this,
            R.layout.list_item_1, Global.availableDecks));

//something like this 
//listview.getPosition(0).setTextColor(red);
//listview.getPosition(1).setTextColor(white);
//listview.getPosition(2).setTextColor(blue);

和我的xml:

    <?xml version="1.0" encoding="utf-8"?>


    <TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/label"
    android:layout_width="match_parent"
    android:layout_height="35dp"
    android:textAppearance="?android:attr/textAppearanceLarge"
    android:textSize="30px"
    android:layout_marginLeft="5px"
    android:singleLine="true"
   />

我用浏览器访问网站没有问题,但是当我以编程方式尝试访问网站进行抓取时,我收到以下错误.

The remote server returned an error: (500) Internal Server Error.

这是我正在使用的代码.

using System.Net;

string strURL1 = "http://www.covers.com/index.aspx";
WebRequest req = WebRequest.Create(strURL1);

// Get the stream from the returned web response
StreamReader stream = new StreamReader(req.GetResponse().GetResponseStream());
System.Text.StringBuilder sb = new System.Text.StringBuilder();
string strLine;
// Read the stream a line at a time and place each one
while ((strLine = stream.ReadLine()) != null)
{
  if (strLine.Length > 0)
    sb.Append(strLine + Environment.NewLine);
}

stream.Close();

这个让我难过.TIA

我在尝试编译和运行VS 2015 UWP应用程序时运行Mobile Emulator时出现以下错误.使用本地计算机或模拟器时,应用程序运行正常.

   System.TypeInitializationException was unhandled by user code
  HResult=-2146233036
  Message=The type initializer for 'SQLitePCL.raw' threw an exception.
  Source=SQLitePCL.raw
  TypeName=SQLitePCL.raw
  StackTrace:
       at SQLitePCL.raw.sqlite3_open_v2(String filename, sqlite3& db, Int32 flags, String vfs)
       at SQLite.SQLiteConnection..ctor(String databasePath, SQLiteOpenFlags openFlags, Boolean storeDateTimeAsTicks)
       at SQLite.SQLiteConnection..ctor(String databasePath, Boolean storeDateTimeAsTicks)
       at App3.MainPage.LoadSQLData()
       at App3.MainPage..ctor()
       at App3.App3_XamlTypeInfo.XamlTypeInfoProvider.Activate_0_MainPage()
       at App3.App3_XamlTypeInfo.XamlUserType.ActivateInstance()
  InnerException: 
       HResult=-2146233052
       Message=Unable to load DLL 'sqlite3': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
       Source=SQLitePCL.raw
       TypeName=""
       StackTrace:
            at SQLitePCL.SQLite3Provider.NativeMethods.sqlite3_win32_set_directory(UInt32 directoryType, String directoryPath)
            at SQLitePCL.SQLite3Provider..ctor()
            at …

我有一个带有ListBox的C#Winform.我试图删除除最后5项之外的所有项目.ListBox排序设置为Ascending.

ListBox中的项目如下所示:

2016-3-1
2016-3-2
2016-3-3
2016-3-4
...
2016-03-28

这是我删除开头项目的代码.

for (int i = 0; i < HomeTeamListBox.Items.Count - 5; i++)
{
    try
    {
        HomeTeamListBox.Items.RemoveAt(i);
    }
    catch { }
}

我也试过了 HomeTeamListBox.Items.RemoveAt(HomeTeamListBox.Items[i]);

如何从列表中获取特定元素？

Double[] weightArray = {240.0, 220d, 230.0, 240.0, 250.0,220.0, 215.0, 220.0,215d,223d};
Double[] pulseArray= {72.0,74.0,75.0,76.0,72.0,78.0,62.0,78.0,76.0,73.0,73.0,79.0};
Double[] sysArray={120.0,120.0,120.0,120.0,120.0,120.0,120.0,120.0,120.0,120.0};
Double[] diaArray={80.0,80.0,80.0,80.0,80.0,80.0,80.0,80.0,80.0,80.0};

List<double[]> values = new ArrayList<double[]>();

for(int i=0; i<weightArray.length; i++){

values.add(new double[] {weightArray[0], weightArray[1], weightArray[2], weightArray[3], weightArray[4],  weightArray[5], weightArray[6], weightArray[7],weightArray[8], weightArray[9] });
values.add(new double[] {pulseArray[0],pulseArray[1],pulseArray[2],pulseArray[3],pulseArray[4],
          pulseArray[5],pulseArray[6],pulseArray[7],pulseArray[8],pulseArray[9] });
values.add(new double[] {sysArray[0],sysArray[1],sysArray[2],sysArray[3],sysArray[4],
          sysArray[5],sysArray[6],sysArray[7],sysArray[8],sysArray[9] });
values.add(new double[] {diaArray[0],diaArray[1],diaArray[2],diaArray[3],diaArray[4],
          diaArray[5],diaArray[6],diaArray[7],diaArray[8],diaArray[9] });    

}

// Does not work
//Object element =values.get(3,2);
//String s= element.toString();
//Toast.makeText(context, s.toString() , Toast.LENGTH_SHORT).show();

例如,我想得到值元素3,2,(diaArrray [1])