Description
Sets the blob value for a key. If the key does not exist, then create the key and set its value. If the key already exists, then overwrite the value of this key. If more than one key with the same name already exists, then overwrite the value of the first key. Notice that the IgnoreCase property (true by default) determines whether the key name will be matched in a case-sensitive manner.
Applies to
JSONPackage object
Syntax
objectname.SetValueBlob ( Key, Value )
|
Argument |
Description |
|---|---|
|
objectname |
The name of the JSONPackage object. |
|
Key |
A string specifying the key name. |
|
Value |
A blob specifying the key value. |
Return value
Integer.
Returns 1 if it succeeds and -1 if an error occurs. If any argument's value is null, the method returns null.
Examples
This example sets the value of the picturepath key to A:\Document4D\PowerBuilder Picture\images\startup.BMP
// Integer SetValueBlob (string Key, blob Value)
String ls_PicturePath
JsonPackage ljpk_User
ljpk_User = Create JsonPackage
// Loads the JSON string to the JSONPackage object
ljpk_User.loadstring( '{"id":100,"name":"Henry.Ken","birthday":"1998-01-01","picturepath":"QTpcV29ya0RvY3VtZW50XFVwZ3JhZGVc5Zu+54mHXGF1dG9ydW4uQk1Q" }')
// Sets the key value and uses the UTF8 encoding.
ljpk_User.SetValueBlob( "picturepath", Blob("A:\Document4D\PowerBuilder Picture\images\startup.BMP",EncodingUTF8!))
// Gets the key value: A:\Document4D\PowerBuilder Picture\images\startup.BMP
ls_PicturePath = String(ljpk_User.GetValueBlob("picturepath"),EncodingUTF8!)
See also
