C # String.Join

String.Join method

The String.Join () method is often used in common work, and there are nine (overloaded) methods in the runtime (System.Runtime, version=4.2.0.0) used with vs 2017.

//        //Summary://concatenates the members of a collection, using the specified separator between//Each member. //        //Parameters://Separator://The string to use as a separator.separator are included in the returned string//The only if values have more than one element. //        //values://A collection that contains the objects to concatenate. //        //type parameter://T://The type of the members of the values. //        //return Result://A String that consists of values delimited by the separator string. //If values have no members, the method returns System.String.Empty. //        //Exception://T:System.ArgumentNullException://values is null.         Public StaticString join<t> (String separator, ienumerable<t>values); //        //Summary://Concatenates the members of a constructed System.Collections.Generic.IEnumerable ' 1//collection of type System.String, using the specified separator between each//member. //        //Parameters://Separator://The string to use as a separator.separator are included in the returned string//The only if values have more than one element. //        //values://A collection that contains the strings to concatenate. //        //return Result://A String that consists of values delimited by the separator string. //If values have no members, the method returns System.String.Empty. //        //Exception://T:System.ArgumentNullException://values is null.         Public StaticString Join (String separator, ienumerable<string>values); //        //Summary://concatenates the elements of an object array, using the specified separator between//Each element. //        //Parameters://Separator://The string to use as a separator. Separator are included in the returned string//The only if values have more than one element. //        //values://An array, the contains the elements to concatenate. //        //return Result://A String that consists of the elements of values delimited by the separator string. //If values are an empty array, the method returns System.String.Empty. //        //Exception://T:System.ArgumentNullException://values is null.         Public StaticString Join (String separator,params Object[] values); //        //Summary://concatenates all the elements of a string array, using the specified separator//between each element. //        //Parameters://Separator://The string to use as a separator. Separator are included in the returned string//Only if the value has a more than one element. //        //Value://An array, the contains the elements to concatenate. //        //return Result://A String that consists of the elements in value delimited by the separator string. //If value is an empty array, the method returns System.String.Empty. //        //Exception://T:System.ArgumentNullException://value is null.         Public StaticString Join (String separator,paramsstring[] value); //        //Summary://concatenates the specified elements of a string array, using the specified separator//between each element. //        //Parameters://Separator://The string to use as a separator. Separator are included in the returned string//Only if the value has a more than one element. //        //Value://An array, the contains the elements to concatenate. //        //StartIndex://The first element in value to use . //        //Count://The number of elements of value to use . //        //return Result://A String that consists of the strings in value delimited by the separator string. //-or-system.string.empty If Count is zero, and value has no elements, or separator//And all the elements of value is System.String.Empty. //        //Exception://T:System.ArgumentNullException://value is null. //        //T:System.ArgumentOutOfRangeException://StartIndex or count is less than 0.-or-startindex plus count is greater than//The number of elements in value. //        //T:System.OutOfMemoryException://Out of memory.         Public StaticString Join (String separator, string[] value,intStartIndex,intcount); //        //Parameters://Separator://        //Value:         Public StaticString Join (CharSeparatorparamsstring[] value); //        //Parameters://Separator://        //Value://        //StartIndex://        //Count:         Public StaticString Join (CharSeparator, string[] value,intStartIndex,intcount); //        //Parameters://Separator://        //values:         Public StaticString Join (CharSeparatorparams Object[] values); //        //Parameters://Separator://        //values://        //type parameter://T:         Public StaticString join<t> (CharSeparator, ienumerable<t> values);

string. Description of Join overloading method

So the usual way of writing, basically covered.

Common methods: Separator "," for example.

String. Join (', ', string[])//character ', ' Split, splice string array

String. Join (', ',list<string>)//character ', ' Split, stitch string list

String. Join (",", string[])//String "," split, splice character array

String. Join (",",list<string>)//String "," split, splice character array

Note: There are not so many overloaded methods in vs2013, so be careful.

C # String.Join