您是否有自己的“ utils” dll，并且在其中保存了什么？

Question

我可以从我自己的.NET dll开始。 我在所有的Web项目中都使用了一个dll（大约10个），并且具有ftp，zip，imageresizing，extensionmethods和通用单例类的util类。

我认为这是一种常见的做法，我只是想听听人们在“实用程序” dll中放入的内容会很有趣

编辑：您拥有哪些小代码宝石，却可以用更少的代码提高工作效率？

这些扩展方法对于在放入数据库之前解析可为空的表单输入时非常有用

        public static int? ToInt(this string input) 
        {
            int val;
            if (int.TryParse(input, out val))
                return val;
            return null;
        }

        public static DateTime? ToDate(this string input)
        {
            DateTime val;
            if (DateTime.TryParse(input, out val))
                return val;
            return null;
        }

        public static decimal? ToDecimal(this string input)
        {
            decimal val;
            if (decimal.TryParse(input, out val))
                return val;
            return null;
        }

Answer 1

我认为携带实用程序集超出当前语言版本的弊大于利。

主要原因是随着语言的发展，新的方法和更好的处理方法被内置。通过携带实用程序集，您很快会承受大量的自负，这可能会暴露出安全问题。

一个典型的例子是增强功能列表。 一眼就能看出，.Net（就像大多数其他语言一样）已经覆盖了至少75％的代码。

Answer 2

我已经收集多年了。 这是从一组VBScript例程开始的，此后我将其转换为VB6。 这是一个COM DLL，因此我几乎可以在几乎任何语言下的任何地方使用它。 我为您避免了所有枚举的无聊。

编辑：我原则上同意克里斯·利弗利（Chris Lively）对本节先前发布的评论。 但是，正如我在评论中说的那样，如果我所做的工作与.NET有关，那么我肯定会把我认为最好的东西扔掉。 但是，就我而言，.NET太容易反编译（使其成为一种eratz开源），而我的雇主希望保护自己的知识产权。

(Autogenerated by TLViewer, © Mark Pryor 2000-2003) 

Library: Std
    P:\other\StdLib\StdLib.dll 
    Description: Std 

coclass Drives

Function DriveType(ByVal sDrv As String) As String


coclass Arrays

Function AAdd(aToThis ,ByVal xAddThis ) As Integer

Function AAdd_PostIncrement(a , ByVal X ) As Variant

Function AAdd_PreIncrement(a , ByVal X ) As Variant

Function AMax(aVec ) As Variant

Function AMin(aVec ) As Variant

Sub DeleteFirst(anArray )

Sub DeleteLast(anArray )

Sub DeleteNth(anArray , ByVal nElement As Long)

Function GenerateRange(nBot As Double, nTop As Double, [nStep As Double = 1]) As Variant

Function GenerateRangeFromString(sRange ) As Variant

Function InArray(sItem , aList ) As Boolean

Function Reverse1DArray(aInput ) As Variant

Function ShowStructure(vToShow ) As String

Function StrInArray(sItem , aList , [bCaseInsens As Boolean = True]) As String


coclass CmdLine

Property AppExeName([BaseOnly As Boolean = False]) As String [Get/o]

Property AppPath As String [Get/o]

Property Argument(ByVal Which As Long) As String [Get/o]

Property Arguments As Long [Get/o]

Property CaseSensitive As Boolean [Get/Let]

Function FlaggedArg(ByVal Flag As String) As String

Function FlagPresent(ByVal Flag As String) As Long

Function FlagPresentFromList(Flags () As Variant) As Boolean

Sub Refresh()

Function ToString() As String


coclass BigString

Sub ClearStr()

Function GetStr([ByVal vJoiner = ]) As String

Function GetStrArray() As Variant

Sub PutStr(ByVal vString )


coclass Config

Sub Define(sKey , sValue )

Property gsFilename As String [Get/Let]

Function List(sFilter ) As String

Function Load(sFile ) As Boolean

Function LoadW(sFile ) As Boolean

Function Recall(sKey ) As Variant

Function RecallElse(sKey , sDefault ) As Variant

Sub Save([sFile = ], [bAsAnsi = False])

Sub SaveW([sFile = ], [bAsAnsi = False])


coclass Collections

Function Add(vData , [sKey ]) As _Variable 

Property AddOnly As Boolean [Get/Let]

Function Count() As Long

Function Exists(vntIndexKey ) As Boolean

Property Item(vntIndexKey ) As _Variable  [Get/o]

Function Items() As Variant

Function Keys() As Variant

Sub Modify(sValue , sKey )

Property NewEnum As stdole.IUnknown  [Get/o]

Sub Remove(vntIndexKey )


coclass Computers

Function ComputerName() As String

Function ExistsFolder(sComputer As String, sDir As String) As Boolean

Function GetComputers(sDomain As String)() As Variant

Function GetDomainComputers(ByVal strDomain As String)() As Variant

Function GetNBT(sComputer As String) As String

Function GetNBTA(sIPAddr As String) As String

Function GetNetView(sDomain As String) As String

Function GetOnlineComputers(sDomain As String)() As Variant

Function GetRemoteEnvironment(sComputer )() As Variant

Function GetSpecs(sComputer As String) As String

Function GetTheComputerName() As String

Function ResolveIP(sName As String) As String


coclass Logic

Function IIF(bCondition As Boolean, vTrue , vFalse ) As Variant


coclass Decimals

Property Dec As Variant [Get/Let]


coclass Domains

Function GetAvailableNTDomains()() As Variant


coclass Database

Sub CreateDatabase(sFile As String)

Sub CreateIndex(ByVal oDb  As ADODB.Connection, sSpec As String)

Sub CreateStructure(ByVal oDb  As ADODB.Connection, sSpec As String)

Function OpenDatabase(theFile As String) As ADODB._Connection 

Function OpenRecordSet(ByVal oDb  As ADODB.Connection, sQuery As String) As ADODB._Recordset 


coclass DateTime

Function dbDate(vDate ) As String

Function GetGmtTime([StartingDate ]) As Date

Function GetTimeDifference() As Long

Function GetTimeHere(gmtTime As Date) As Date

Function InternetTimeToVbLocalTime(ByVal DateString As String) As Date


coclass Wallpaper

Function ActiveDesktopSetWallpaper(ByVal strFile As String) As Boolean

Sub At(ByVal nX As Integer, ByVal nY As Integer)

Sub AtSay(ByVal nX As Integer, ByVal nY As Integer, ByVal sText As String)

Sub Attributes(ByVal sAttribList As String)

Sub Colour(ByVal iFGColour As Long, ByVal iBGColour As Long)

Sub Dimensions(ByVal nHeight As Integer, ByVal nWidth As Integer)

Sub Font(ByVal sName As String, ByVal iSize As Integer)

Function LoadPic(sFilename As String, [nDestX As Integer = ], [nDestY As Integer = ]) As Variant

Property Picture As Object [Get/Set]

Sub SavePic(sFilename As String, [iType As Integer = 1])

Sub Say(ByVal sText As String)

Sub ScaleMode(ByVal iMode As Integer)

Function TextHeight(ByVal sText As String) As Integer

Function TextWidth(ByVal sText As String) As Integer


coclass Excel

Sub ExcelColumnNames(aHeadings () As Variant, [bBold As Boolean = True])

Sub ExcelNewSheet()

Sub ExcelStart([bHidden As Boolean = False])


coclass StopWatch

Sub Finish()

Function FinishTime() As Date

Function LapTime() As String

Function Seconds() As Integer

Sub Start()

Function StartTime() As Date


coclass Environments

Function GetProcessEnv(strEnvVar As String) As String

Function GetSystemEnv(strEnvVar As String) As String

Function GetUserEnv(strEnvVar As String) As String

Function GetVolatileEnv(strEnvVar As String) As String


coclass Schedule

Function AddTask(strTime , strCommand , [enDaysInWeek As ENUM_WEEKDAYS  = ], [strDaysInMonth = ], [RunInteractive As Boolean = True], [ReOccuring As Boolean = True]) As Long

Function DeleteTask(lngID As Long) As Boolean

Function GetNameOfComputer() As String


coclass SymbolTable

Function Append(sName , sValue ) As String

Sub Clear()

Function Increment(sName ) As Integer

Function IsSym(sName ) As Boolean

Function Keys()() As Variant

Sub Parse(sData , sSep )

Function Recall(sName ) As Variant

Sub Remove(sData )

Sub Store(sName , vValue )

Sub StoreDup(sName , xValue )

Sub StoreDup2(sName , xValue )

Function SymList() As Variant

Function SymListText() As String


coclass Files

Function CollectFiles(sDirectory , sFileType ) As Variant

Sub DeleteFile(ByVal cFilename )

Function Exists(sFile ) As Boolean

Function FileHasBeenModified(sFile As String, dThen As Date) As Boolean

Function FileModificationDate(sFile As String) As Date

Function IsUTF16LE(sFile As String) As Boolean

Function RandomInputFile(sExt As String) As String

Function RandomOutputFile(sRandomInputFile As String, sExt As String) As String

Function ReadFileA(FileName ) As String

Function ReadFileE(FileName ) As String

Function ReadFileU(FileName ) As String

Function ReadFirstLineA(FileName ) As Variant

Function ReadFirstLineE(FileName ) As String

Function ReadFirstLineU(FileName ) As String

Sub WriteFileA(sFilename , sContents , nMode As Long)

Sub WriteFileB(sFilename , nOffset As Long, vData )

Sub WriteFileU(sFilename , sContents , nMode As Long)


coclass System

Function AvailableDesktopDimensions() As Variant

Function CaptureDOS(sCommand , [bSynch As Boolean = True]) As Variant

Function ConsoleWrite(sText As String) As Long

Function ConsoleWriteLine(sText As String) As Long

Function CreateGUID() As String

Function DesktopDimensions() As Variant

Function DoEventsSeconds(nSeconds As Integer) As Integer

Sub DoEventsSeconds2(iSeconds As Integer)

Function GetTheWindowsDirectory() As String

Function GetUUID(sUuid As String) As Boolean

Function KillProcess(ProcessName As String) As Boolean

Sub Navigate(ByVal NavTo As String)

Function SetProcessPriority(sProcess As String, nPriority As EPROCESS_PRIORITY ) As Boolean

Function ShellEx(ByVal sFile As String, [eShowCmd As EShellShowConstants  = essSW_SHOWDEFAULT], [ByVal sParameters As String = ], [ByVal sDefaultDir As String = ], [sOperation As String = "open"], [Owner As Long = ]) As Boolean

Sub Sleep(nMilli As Integer)

Function SystemDefaultUILanguage() As Long

Function ThreadLocale() As Long


coclass Groups

Function GetComputerGroups(ByVal strComputerName As String)() As Variant

Function GetDefaultNamingContext() As String

Function GetGroups()() As Variant


coclass Help

Function HHDisplayHeadTopic(ByVal lHwnd As Long) As Long

Function HHDisplaySearch(ByVal lHwnd As Long, [toSearch As String = ]) As Long

Function HHHelpContents(ByVal lHwnd As Long) As Long

Function HHHelpIndex(ByVal lHwnd As Long, [toSearch As String = ]) As Long

Sub HHInitialize()

Function HHKeywordLookup(ByVal lHwnd As Long, [sKeyword As String = ]) As Long

Sub HHUninitialize()

Property sHelpFile As String [Get/Let]


coclass Number

Function IntegerToUnsigned(Value As Integer) As Long

Function LongToUnsigned(Value As Long) As Double

Function UnsignedToInteger(Value As Long) As Integer

Function UnsignedToLong(Value As Double) As Long


coclass IEDisplay

Sub Display(sMsg As String, nMillisec As Integer)

Sub Init(sPosition )

Property sName As String [Get/Let]


coclass Temp

Function GetTempFileName([sSeed As String = ]) As String

Function LocGetFilePath(ByVal iCFName As String) As String

Function TempDir() As String

Function TempDirWide() As String

Function TempFile(Create As Boolean, [lpPrefixString ], [lpszPath ]) As String

Function UnicodeTempFile(ByVal iFileName As String) As String


coclass INI

Sub Clear()

Function GetValue(sSection As String, sKey As String, strDefault As String) As String

Function HasSection(sSection As String) As Boolean

Function Load(sIniName As String) As Boolean

Function ReadINIA(sSection , sKeyName , sINIFileName ) As String

Function ReadINIU(sSection As String, sKeyName As String, sINIFileName As String) As String

Function WriteINIA(sSection , sKeyName , sNewString , sINIFileName ) As Boolean

Function WriteINIU(sSection As String, sKeyName As String, sNewString As String, sINIFileName As String) As Boolean


coclass Variable

Property Name As Variant [Get/Let/Set]

Property Value As Variant [Get/Let/Set]


coclass Mouse

Function Between(ByVal nNumber As Integer, ByVal nLowerBound As Integer, ByVal nUpperBound As Integer) As Boolean

Function MouseX([ByVal hWnd As Long = ]) As Long

Function MouseY([ByVal hWnd As Long = ]) As Long


coclass Traces

Sub ClearTrace()

Sub Trace([ByVal sTag = "!@#$%^&*()_"])

Property TraceFile As String [Get/Let]

Property Tracing As Boolean [Get/Let]


coclass Registry

Property ClassKey As ERegistryClassConstants  [Get/Let]

Sub CreateAdditionalEXEAssociations(ByVal sClassName As String, vItems () As Variant)

Sub CreateEXEAssociation(ByVal sExePath As String, ByVal sClassName As String, ByVal sClassDescription As String, ByVal sAssociation As String, [ByVal sOpenMenuText As String = "&Open"], [ByVal bSupportPrint As Boolean = False], [ByVal sPrintMenuText As String = "&Print"], [ByVal bSupportNew As Boolean = False], [ByVal sNewMenuText As String = "&New"], [ByVal bSupportInstall As Boolean = False], [ByVal sInstallMenuText As String = ], [ByVal lDefaultIconIndex As Long = -1])

Function CreateKey() As Boolean

Property Default As Variant [Get/Let]

Function DeleteKey() As Boolean

Function DeleteValue() As Boolean

Function EnumerateSections(sSect () As String, iSectCount As Long) As Boolean

Function EnumerateValues(sKeyNames () As String, iKeyCount As Long) As Boolean

Property KeyExists As Boolean [Get/o]

Property Machine As String [Get/Let]

Property SectionKey As String [Get/Let]

Property Value As Variant [Get/Let]

Property ValueEx(ClassKey As ERegistryClassConstants , SectionKey As String, ValueKey As String, ValueType As ERegistryValueTypes , Default ) As Variant [Get/Let]

Property ValueKey As String [Get/Let]

Property ValueType As ERegistryValueTypes  [Get/Let]


coclass Users

Function GetComputerUsers(ByVal strComputerName As String)() As Variant

Function GetComputerUsers2(ByVal strComputerName )() As Variant

Function GetDomainUser(sComputer As String) As String

Function GetLoginProfiles(sComputer )() As Variant

Function GetMac(sDevice ) As String

Function GetNameAndDescription(spDomain As String, sUsername As String) As String

Function GetOUofUser(sDomain As String, sUsername As String) As String


coclass Sort

Sub heapsort(aVec )

Sub quicksort(aVec )

Sub shellsort(a0 , [bAscending As Boolean = True])

Sub shellSortOnField(aVec , ByVal nField As Integer, ByVal sFieldSep , [nComparisonType As SSOF_COMPARISON  = SSOF_NUMERICAL])

Function sorted()() As Variant


coclass Strings

Function AnyOf(sText , nOperator As AO_COMPARATORS , sChar ) As Boolean

Function AnyOfList(sText , nOperator As AO_COMPARATORS , aChar ) As Boolean

Function AsString(X ) As String

Function BeginsWith(sText , sBeginning , [bCaseInsensitive As Boolean = True]) As Boolean

Function Between(sText , sBegin , sEnd ) As String

Function ByteArrayToString(aBytes () As Byte) As String

Function ComprehendCSV(sText ) As Variant

Function Contains(sText , sChunk , [bCaseInsensitive As Boolean = True]) As Boolean

Function CountFields(strText , strDelim ) As Integer

Function DQ(s ) As String

Function EndsWith(sText , sEnding , [bCaseInsensitive As Boolean = True]) As Boolean

Function EndsWithSet(sText , vEnding , [bCaseInsensitive As Boolean = True]) As Boolean

Function FirstLineOf(sData ) As String

Function FirstWord(sText ) As String

Function ForceExtension(sFilename , sExtension ) As String

Function HexDump(sData ) As String

Function HTMLWrap(sTag , sContent ) As String

Function LastLineOf(sData ) As String

Function LeftFill(sText , nLen , sFill ) As String

Function LeftOf(sText , sItem ) As String

Function LeftOfLast(sText , sItem ) As String

Function NthField(sText , sDelimiter , nReqdField ) As String

Function NthLineOf(n As Integer, sData ) As String

Function RemoveSpaces(sText ) As String

Function Reverse(sText ) As String

Function RightFill(sText , nLen , sFill ) As String

Function RightOf(sText , sItem ) As String

Function RightOfLast(sText , sItem ) As String

Function SplitSet(ByVal sString , ByVal sSet ) As Variant

Function StringConversion(s , n As Integer) As String

Function StringMap(sText , aFrom , vTo ) As String

Function StringToByteArray(ByVal sString )() As Byte

Function Subst(sText , paArgList () As Variant) As String

Function Subst2(sText , paArgList () As Variant) As String

Function ZeroFill(nNum , nWidth ) As String

Function Zerofill2(nNum ) As String

Answer 3

这是我个人的两堂课。 它使很多事情变得更好:)

public class DynamicArray<Type>
{
    private Type[] internalArray;

    public DynamicArray()
    {
        internalArray = new Type[0];
    }

    public int Length
    {
        get
        {
            return internalArray.Length;
        }
        set
        {
            if (value >= 0)
                Array.Resize<Type>(ref internalArray, value);
            else
                throw new ArgumentOutOfRangeException
                ("Length can not be less than zero!");
        }
    }

    public Type[] AsNormalArray
    {
        get
        {
            return internalArray;
        }
        set
        {
            internalArray = value;
        }
    }

    public Type this[int index]
    {
        get
        {
            if (index >= 0 && index < internalArray.Length)
                return internalArray[index];
            else
                throw new IndexOutOfRangeException
                ("Index was outside the bounds of the array!");
        }
        set
        {
            //Get error handling out of the way first
            if (index < 0)
                throw new IndexOutOfRangeException
                ("Index must be greater than or equal to zero!");
            //I decided that being able to grow by any amount can eventually lead
            //to lots of bugs, think about it. Just set the length manually
            //by assigning to .Length :)
            if (index > internalArray.Length)
                throw new IndexOutOfRangeException
                ("Can not dynamically grow more than one element at a time! Set length manually.");
            //We are left with two possibilities. A. we are indexing an existing element or
            //B. we are indexing one element to high (same as length, big array no no)
            //so grow an element
            if (index < internalArray.Length)//Then we dont need to grow an element
            {
                internalArray[index] = value;
            }
            else//Then grow one element, and add the value
            {
                Array.Resize<Type>(ref internalArray, internalArray.Length + 1);
                internalArray[index] = value;
            }
        }
    }

    public void Add(params Type[] values)
    {
        int start = internalArray.Length; //Start adding values at the end
        this.Length += values.Length; //Pre-set length (faster)

        foreach (Type val in values)
        {
            //this[start++] = val; Possibly slower
            internalArray[start++] = val;
        }
    }

    public int IndexOf(Type thisValue)
    {
        int i = 0;
        bool found = false;

        for(; i <= internalArray.Length; i++)
        {
            if(internalArray[i].Equals(thisValue))
            {
                found = true;
                break;
            }
        }

        if(found)
            return i;
        else
            throw new ArgumentException
            (thisValue+" does not exist!");
    }

    public bool Contains(Type thisValue)
    {
        bool found = false;

        foreach (Type val in internalArray)
        {
            if (val.Equals(thisValue))
            {
                found = true;
                break;
            }
        }

        return found;
    }
}



public class AssosiativeArray<ArrayT, KeyT>
{
    //Easy peasy lemon squeezy
    private DynamicArray<ArrayT> values;
    private DynamicArray<KeyT> keys;

    public AssosiativeArray()
    {
        values = new DynamicArray<ArrayT>();
        keys = new DynamicArray<KeyT>();
    }

    public int Length
    {
        get
        {
            return values.Length;
        }
    }

    public ArrayT[] ValuesAsNormalArray
    {
        get
        {
            return values.AsNormalArray;
        }
    }

    public KeyT[] KeysAsNormalArray
    {
        get
        {
            return keys.AsNormalArray;
        }
    }

    public ArrayT this[KeyT index]
    {
        get
        {
            if (keys.Contains(index))
            {
                return values[keys.IndexOf(index)];
            }
            else
            {
                throw new ArgumentException
                ("The key "+index+" does not exist!");
            }
        }
        set
        {
            keys[keys.Length++] = index;
            values[values.Length++] = value;
        }
    }

    public bool ContainsKey(KeyT key)
    {
        bool found = false;

        foreach (KeyT val in keys.AsNormalArray)
        {
            if (val.Equals(key))
            {
                found = true;
                break;
            }
        }

        return found;
    }
}

}

Answer 4

我才刚刚真正开始我的工作，但目前它只包含我一直使用的通用扩展方法。 像“ ThrowIfNull（）”这样的东西，所以我不必每次都要检查null时都要做if语句的堆。

我也有一个游乐场项目，其中包含我在玩弄的任何想法，但我不是100％确信它们甚至会起作用。

Answer 5

我按功能将实用程序分组。 结果，我没有一个实用程序DLL，而是一个包含几个这样的程序集的文件夹，每个程序集封装一个任务（通常包括一个以上的类，实际上，它通常包括整个层次结构）。

在极端情况下，这意味着我有一个包含一个声明的DLL，即以下声明（加上文档）：

namespace madrat.Common {
    public interface ICopyable<T> {
        T Copy();
    }
}

请注意，与System.ICloneable接口不同，此接口具有在文档中指定的定义明确的语义（深层副本）。

那么，为什么要为此微小的声明添加一个额外的DLL？ 因为它使其他程序集之间的互操作性更加容易。