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json class : IsNull(int) method

Description

Gets a value indicating whether a value corresponding to the index is null.

Syntax

jsonInstance.IsNull(int index)

Arguments

ClassNameDescription
intindexAn index.

Return value

ClassDescription
boolA value indicating whether a value is null.

Sample code

1:

jsonIns = new json("[@name@,true,1000,null]".Replace("@","".DQ)); // array

2:

bool isnull = jsonIns.IsNull(0); // false

3:

isnull = jsonIns.IsNull(1); // false

4:

isnull = jsonIns.IsNull(2); // false

5:

isnull = jsonIns.IsNull(3); // true

Notes

If the instance is an JSON object, an exception is raised.

If there is no value corresponding to the index, an exception is raised.

Only values that are direct children are searched.

Returns true if a value corresponding to the index is null. Otherwise it returns false.

Links for reference

None

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