Description
Checks if the path exists.
Applies to
Syntax
objectname.ContainsPath ( ItemPath )
|
Argument |
Description |
|---|---|
|
objectname |
The name of the JSONParser object whose path you want to check. |
|
ItemPath |
A string whose value is the path of the item of JsonArrayItem type. If there is a multi-dimensional array, use the number to indicate the order of the array elements. If a key name contains "/", use the escape character "~~/" to replace "/". |
Return value
Boolean. Returns true if the item path exists and false if an error occurs. If any argument's value is null, the method returns null.
Example 1
This example loads a JSON string into a JSONParser object and checks if the specified path exists:
String ls_Return, ls_Path
Boolean lb_Contains
JSONItemType ljit_Dept
JsonParser ljp_ContainsPath
ljp_ContainsPath = Create JsonParser
// Loads JSON string to JSONParser object
ls_Return = ljp_ContainsPath.LoadString ( '{"Boolean":false, "Name":"A&DName", "object":{"1":"1"}, "dept":[{"dept_id":100, "dept_name":"R & D8", "dept_head_id":105}, {"dept_id":200, "dept_name":"Sales", "dept_head_id":129}]}' )
If Trim(ls_Return)<>"" Then
// Prints the error message
Return
End If
// Checks if JSONParser parent node contains a Boolean path
// This script returns TRUE
ls_Path = "/Boolean"
lb_Contains = ljp_ContainsPath.ContainsPath( ls_Path )
ls_Path = "/dept"
lb_Contains = ljp_ContainsPath.ContainsPath( ls_Path )
If lb_Contains Then
ljit_Dept = ljp_ContainsPath.getitemtype( ls_Path )
If ljit_Dept = JsonArrayItem! Then
// Checks if the first element contains a dept_name path
// This script returns TRUE
ls_Path = "/dept/1/dept_name"
lb_Contains = ljp_ContainsPath.ContainsPath( ls_Path )
// Checks if the first element contains a Boolean path
// This script returns FALSE
ls_Path = "/dept/1/Boolean"
lb_Contains = ljp_ContainsPath.ContainsPath( ls_Path )
Else
// Prints error message: the dept path is JsonArrayItem
End If
Else
// Prints the error message
End If
See also
