【c#】DataChecker工具类大全分享

IsEmpty functions

DataSet

/// <summary>/// DataSet is null or empty/// </summary>/// <param name="dataSet">checking DataSet</param>/// <returns>if null or empty, then return<c>true</c>; else return <c>false</c>.</returns>public static bool IsEmpty(DataSet dataSet){    return !(IsNotEmpty(dataSet));}

DataTable

/// <summary>/// DataTable is null or empty/// </summary>/// <param name="dataTable">DataTable.</param>/// <returns>if null or empty, then return<c>true</c><c>true</c>;else return <c>false</c>.</returns>public static bool IsEmpty(DataTable dataTable){    return !(IsNotEmpty(dataTable));}

String

code@1

/// <summary>/// input string is null or String.Empty/// </summary>/// <param name="str">checking string</param>/// <param name="removeSpace">remove front/end spaces or not</param>/// <returns>if null or empty, then return<c>true</c>; else return <c>false</c>.</returns>public static bool IsEmpty(string str, bool removeSpace){    if (str == null)    {        return true;    }    if (removeSpace)    {        return (str.Trim().Length == 0);    }    return (str.Length == 0);}

code@2

public static bool IsReadEmpty(string str){    return IsRealEmpty(str, true);}

code@3

public static bool IsRealEmpty(string str, bool removeSpace){    if (str == null)    {        return true;    }    if (removeSpace)    {        return (str.Replace(" ", " ").Trim().Length == 0);    }    return (str.Length == 0);}

ICollection

code@1

/// <summary>/// Determines whether the specified value is empty./// </summary>/// <param name="value">The value.</param>/// <returns>///     <c>true</c> if the specified value is empty; otherwise, <c>false</c>./// </returns>public static bool IsEmpty(ICollection value){    return (value == null || value.Count == 0);}

code@2

/// <summary>/// Determines whether the specified value is empty./// </summary>/// <param name="value">The value.</param>/// <returns>///     <c>true</c> if the specified value is empty; otherwise, <c>false</c>./// </returns>public static bool IsEmpty<T>(ICollection<T> value){    return (value == null || value.Count == 0);}

Object

/// <summary>/// Determines whether the specified value is empty./// </summary>/// <param name="value">The value.</param>/// <returns>///     <c>true</c> if the specified value is empty; otherwise, <c>false</c>./// </returns>public static bool IsEmpty(object value){    if (value == null)    {        return true;    }    if (value is string)    {        return IsEmpty((string)value);    }    if (value is ICollection)    {        return IsEmpty((ICollection)value);    }    if (value is DataSet)    {        return IsEmpty((DataSet)value);    }    if (value is DataTable)    {        return IsEmpty((DataTable)value);    }    return false;}

IsNotEmpty functions

DataSet

/// <summary>/// data in DataSet/// </summary>/// <param name="dataSet">checking DataSet</param>/// <returns>if null or empty, then return<c>false</c>; otherwise <c>true</c>.</returns>public static bool IsNotEmpty(DataSet dataSet){    if (dataSet == null)    {        return false;    }    for (int i = 0; i < dataSet.Tables.Count; i++)    {        if (IsNotEmpty(dataSet.Tables[i]))        {            return true;        }    }    return false;}

DataTable

/// <summary>/// data in DataTable/// </summary>/// <param name="dataTable">DataTable.</param>/// <returns>if null or empty, then return<c>false</c>; else return <c>true</c>.</returns>public static bool IsNotEmpty(DataTable dataTable){    if (dataTable == null)    {        return false;    }    if (dataTable.Rows.Count > 0)    {        return true;    }    return false;}

String

code@1

/// <summary>/// string is null or String.Empty。/// </summary>/// <param name="str">checking string</param>/// <param name="removeSpace">remove front and end spaces or not</param>/// <returns>if null or empty, then return<c>false</c>; else return <c>true</c>.</returns>public static bool IsNotEmpty(string str, bool removeSpace){    return (!IsEmpty(str, removeSpace));}

code@2

/// <summary>/// input string is null or String.Empty，remove the front and end spaces./// </summary>/// <param name="str">checking string</param>/// <returns>if null or empty, then return<c>false</c>; else return <c>true</c>.</returns>public static bool IsNotEmpty(string str){    return IsNotEmpty(str, true);}

ICollection

code@1

/// <summary>/// Determines whether [is not empty] [the specified value]./// </summary>/// <param name="value">The value.</param>/// <returns>///     <c>true</c> if [is not empty] [the specified value]; otherwise, <c>false</c>./// </returns>public static bool IsNotEmpty(ICollection value){    return !IsEmpty(value);}

code@2

/// <summary>/// Determines whether [is not empty] [the specified value]./// </summary>/// <typeparam name="T"></typeparam>/// <param name="value">The value.</param>/// <returns>///     <c>true</c> if [is not empty] [the specified value]; otherwise, <c>false</c>./// </returns>public static bool IsNotEmpty<T>(ICollection<T> value){    return !IsEmpty(value);}

Object

/// <summary>/// Determines whether [is not empty] [the specified value]./// </summary>/// <param name="value">The value.</param>/// <returns>///     <c>true</c> if [is not empty] [the specified value]; otherwise, <c>false</c>./// </returns>public static bool IsNotEmpty(object value){    return !IsEmpty(value);}

HasEmpty

/// <summary>/// Determines whether the specified args has empty./// </summary>/// <param name="args">The args.</param>/// <returns>///     <c>true</c> if the specified args has empty; otherwise, <c>false</c>./// </returns>public static bool HasEmpty(params object[] args){    foreach (object arg in args)    {        if (IsEmpty(arg))        {            return true;        }    }    return false;}

AllAreEmpty

/// <summary>/// Alls the are empty./// </summary>/// <param name="args">The args.</param>/// <returns></returns>public static bool AllAreEmpty(params object[] args){    foreach (object arg in args)    {        if (IsNotEmpty(arg))        {            return false;        }    }    return true;}

AllAreNotEmpty

/// <summary>/// Alls the are not empty./// </summary>/// <param name="args">The args.</param>/// <returns></returns>public static bool AllAreNotEmpty(params object[] args){    foreach (object arg in args)    {        if (IsEmpty(arg))        {            return false;        }    }    return true;}

Digit checking

IsUInt

/// <summary>/// Decimal and unsigned data/// </summary>/// <param name="input">input string</param>/// <returns></returns>public static bool IsUInt(string input){    Regex regUInt = new Regex("^[0-9]+$");    if (!IsNotEmpty(input))    {        return false;    }    Match match = regUInt.Match(input);    return match.Success;}

IsInt

/// <summary>/// Decimal integer string./// </summary>/// <param name="input">input string</param>/// <returns></returns>public static bool IsInt(string input){    Regex regInt = new Regex("^[+-]?[0-9]+$");    if (!IsNotEmpty(input))    {        return false;    }    Match match = regInt.Match(input);    return match.Success;}

IsUDecimal

/// <summary>/// Whether it is an unsigned decimal number, including decimal./// </summary>/// <param name="input">input string</param>/// <returns></returns>public static bool IsUDecimal(string input){    Regex regUDecimal = new Regex("^[0-9]+[.]?[0-9]*$");    if (!IsNotEmpty(input))    {        return false;    }    Match match = regUDecimal.Match(input);    return match.Success;}

IsDecimal

/// <summary>/// Is a decimal number or not, including decimal./// </summary>/// <param name="input">input string</param>/// <returns></returns>public static bool IsDecimal(string input){    Regex regDecimal = new Regex("^[+-]?[0-9]+[.]?[0-9]*$"); //==>  ^[+-]?\d+[.]?\d+$    if (!IsNotEmpty(input))    {        return false;    }    Match match = regDecimal.Match(input);    return match.Success;}

Chinese checking

/// <summary>/// check chinese is exist or not/// </summary>/// <param name="input">input string</param>/// <returns></returns>public static bool HasChinese(string input){    Regex regChinese = new Regex("[\u4e00-\u9fa5]");    if (!IsNotEmpty(input))    {        return false;    }    Match match = regChinese.Match(input);    return match.Success;}

Mail Address check

/// <summary>/// Is a floating-point numbers, may have + and -/// </summary>/// <param name="input">input string</param>/// <returns></returns>public static bool IsEmail(string input){    Regex regEmail = new Regex("^[\\w-]+@[\\w-]+\\.(com|net|org|edu|mil|tv|biz|info)$");    if (!IsNotEmpty(input))    {        return false;    }    Match match = regEmail.Match(input);    return match.Success;}

MathRelative

ToSBC-转全角的函数

///转全角的函数(SBC case)//////任意字符串///全角字符串//////全角空格为12288，半角空格为32///其他字符半角(33-126)与全角(65281-65374)的对应关系是：均相差65248///        public static string ToSBC(string input){    //半角转全角：    char[] c = input.ToCharArray();    for (int i = 0; i < c.Length; i++)    {        if (c[i] == 32)        {            c[i] = (char)12288;            continue;        }        if (c[i] < 127)            c[i] = (char)(c[i] + 65248);    }    return new string(c);}

ToDBC-转半角的函数

///转半角的函数(DBC case)//////任意字符串///半角字符串//////全角空格为12288，半角空格为32///其他字符半角(33-126)与全角(65281-65374)的对应关系是：均相差65248///public static string ToDBC(string input){    char[] c = input.ToCharArray();    for (int i = 0; i < c.Length; i++)    {        if (c[i] == 12288)        {            c[i] = (char)32;            continue;        }        if (c[i] > 65280 && c[i] < 65375)            c[i] = (char)(c[i] - 65248);    }    return new string(c);}