Dictionary Object in QTP:

Dictionary Object is used when we want to save our data in the form of Key and Value Pair.

It has following methods.

Add, Exist, Keys, Items, Count, Remove, RemoveAll

Let’s see each of them one by one with example.

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Add

Description: Add Method is used to add key and value in the dictionary object.

Syntax: ObjDic.Add “Key”, “Items”

Return Type: None

Example: Dim ObjDic

ObjDic = CreateObject(“Scripting.Dictionary”)            ‘Create Dictionary Object

ObjDic.Add “Key1”, “Item1”

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Count

Description: Count method is used to get the number of items in the dictionary object.

Syntax: ObjDic.Count                               

Return Type: Long

Example: Dim ObjDic, Var_Count

ObjDic = CreateObject(“Scripting.Dictionary”)            ‘Create Dictionary Object

ObjDic.Add “Key1”, “Item1”

ObjDic.Add “Key2”, “Item2”

Var_Count = ObjDic.Count

MsgBox Var_Count                         ‘Display 2 as we added only two items in the dictionary object.

-------------------------------------------------------------------------------------------------            Exists

Description: Exist method is used to check whether is given key is present in the dictionary object or not.

Syntax: ObjDic.Exists(“Key”)                   

Return Type: A Boolean Value

Dim ObjDic, Var_Key

ObjDic = CreateObject(“Scripting.Dictionary”)            ‘Create Dictionary Object

ObjDic.Add “Key1”, “Item1”

ObjDic.Add “Key2”, “Item2”

Var_Key = ObjDic.Exists(“Key1”)

MsgBox Var_Key                                        ‘Display True

Var_Key = ObjDic.Exist(“Key5”)

MsgBox Var_Key                                      ‘Display False

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Item

Description: Item method is used to Set OR Get the value of the given key.

Syntax: ObjDic.Item(“Key”)                    

Return Type: A variant value

Example: Dim ObjDic, Var_Val,

ObjDic = CreateObject(“Scripting.Dictionary”)     ‘Create Dictionary Object

ObjDic.Add “Key1”, “Item1”

ObjDic.Add “Key2”, “Item2”

Var_Val = ObjDic.Item(“Key1”)

MsgBox Var_Val                                                 ‘Display Item1                                                 

ObjDic.Item(“Key1”) = “New_Item”                                                                            

Var_Val = ObjDic.Item(“Key1”)

MsgBox Var_Val                                                ‘Display New_Item

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Items

Description: Items method is used to get an Array variable containing all the items in the dictionary object.

Syntax: ObjDic.Items                                

Return Type: An Array variable

Example: Dim ObjDic, Var_Array

ObjDic = CreateObject(“Scripting.Dictionary”)            ‘Create Dictionary Object

ObjDic.Add “Key1”, “Item1”

ObjDic.Add “Key2”, “Item2”

Var_Array = ObjDic.Items                       

For each Val in Var_Array                        ‘To display each item of dictionary object.

MsgBox Val

Next

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Key

Description: Key method is used to change the key associated with the item

Syntax: ObjDic.Key(“Key”)

Return Type: None

Example: Dim ObjDic, Var

ObjDic = CreateObject(“Scripting.Dictionary”)            ‘Create Dictionary Object

ObjDic.Add “Key1”, “Item1”

ObjDic.Add “Key2”, “Item2”

ObjDic.Key(Key1) = “New_Key”                       

 Var = ObjDic.Item(“New_Key”)                     

MsgBox Var                                                                       ‘Display Item1

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Keys

Description: Keys method is used to get an Array variable containing all the Keys in the dictionary object.

Syntax: ObjDic.Keys                                  

Return Type: An Array variable

Example: Dim ObjDic, Key_Array

ObjDic = CreateObject(“Scripting.Dictionary”)            ‘Create Dictionary Object

ObjDic.Add “Key1”, “Item1”

ObjDic.Add “Key2”, “Item2”

Key_Array = ObjDic.Keys                      

For each Var_Key in Key_Array                        ‘To display each Key present in dictionary object.

MsgBox Var_Key

Next

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Remove

Description: Remove method is used to remove the specified Key from the dictionary object.

Syntax: ObjDic.Remove(“Key”)              

Return Type: None

Example: Dim ObjDic, Var

ObjDic = CreateObject(“Scripting.Dictionary”)            ‘Create Dictionary Object

ObjDic.Add “Key1”, “Item1”

ObjDic.Add “Key2”, “Item2”

ObjDic.Remove(“Key1”)

If ObjDic.Exists(“Key1”)

            Msgbox “Given Key is Present”

Else

            Msgbox “Given Key is not Present”

End If

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RemoveAll

Description: RemoveAll method is used to remove all the information (Key and Item) from the dictionary object.

Syntax: ObjDic.RemoveAll                      

Return Type: None

Example: Dim ObjDic,

ObjDic = CreateObject(“Scripting.Dictionary”)            ‘Create Dictionary Object

ObjDic.Add “Key1”, “Item1”

ObjDic.Add “Key2”, “Item2”

ObjDic.RemoveAll

If ObjDic.Exists(“Key1”)

            Msgbox “Given Key is Present”

Else

            Msgbox “Given Key is not Present”

End If

Note: You will get an error message “This Key is already associated with an element of this collection”, if you try to associate same Key with two Items.