VBScript Reference Manual for InduSoft Web Studio

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VBScript Reference Manual InduSoft Web Studio Property Item Description: Sets or returns an item for a specified key in a Dictionary object. Usage: Object.Item (key) [= newitem] Arguments: key Required. Is the key associated with the item being retrieved or added. newitem Optional. If provided, new item is the new value associated with the specified key Return: None Remarks: If the key is not found when changing an item, a new key is created with the specified new item. If a key is not found when attempting to return an existing item, a new key is created and its corresponding item is left empty. Example: Dim d Set d = CreateObject(“Scripting.Dictionary”) d.Add “a”, “Chicago” d.Add “b”, “New York” MyItem = d.Item(“a”) MsgBox MyItem ‘ Displays Chicago d.Item(“b”) = “Austin” ‘ Change item for key “b” to Austin Property Key Description: Sets a key in a Dictionary object. Usage: Object.Key (key) = newkey Arguments: key Required. Is the key value being changed newkey Required. New value that replaces the specified key Return: None Remarks: If the key is not found when changing a key, a new key is created and its associated item is left empty. Example: Dim d Set d = CreateObject(“Scripting.Dictionary”) d.Add “a”, “Chicago” d.Add “b”, “New York” d.Key(“a”) = “city1” d.Key(“b”) = “city2” Method Add Description: Adds the name of a dictionary object Usage: object.Add (key, item) Arguments: key Required. The key associated with the item being added. Must be unique. item Required. This is the item associated with the key being added. Return: None. Error occurs if the key already exists Example: Dim d Set d = CreateObject(“Scripting.Dictionary”) d.Add “a”, “Chicago” d.Add “b”, “New York” Method Exists Description: Determine is a specified key exists in the Dictionary object Usage: object.Exists (key) Arguments: key Required. The key value being searched for Return: TRUE if a specified key exists in the Dictionary object, otherwise FALSE Example Dim d, msg Set d = CreateObject(“Scripting.Dictionary”) d.Add “a”, “Chicago” 214 InduSoft, Ltd.
InduSoft Web Studio VBScript Reference Manual d.Add “b”, “New York” Msg = “key does not exist” if d.Exists (“b”) Then msg = “Key exists” MsgBox (Msg) ‘ Indicate if the key exists Method Items Description: Returns an array containing all the existing items in a Dictionary object Usage: Object.Items () Arguments: None Return: Array containing all the existing items in the Dictionary object Example: Dim a, d Set d = CreateObject(“Scripting.Dictionary”) d.Add “a”, “Chicago” d.Add “b”, “New York a = d.Items For i = 0 to d.Count – 1 s = s & a(i) & vbCrLf Next MsgBox s ‘ Display all the items Method Keys Description: Returns an array containing all the existing keys in a Dictionary object Usage: Object.Keys () Arguments: None Return: Array containing all the existing keys in the Dictionary object Example: Dim a, d Set d = CreateObject(“Scripting.Dictionary”) d.Add “a”, “Chicago” d.Add “b”, “New York a = d.Keys For i = 0 to d.Count – 1 s = s & a(i) & vbCrLf Next MsgBox s ‘ Display all the keys Method Remove Description: Removes a key, item pair from a Dictionary object Usage: Object.Remove (key) Arguments: key Required. Is the key associated with the key, item pair you want to remove from the Dictionary object Return: None Example: Dim a, d Set d = CreateObject(“Scripting.Dictionary”) d.Add “a”, “Chicago” d.Add “b”, “New York” d.Remove(“b”) ‘ Removes the “b, New York” key/item pair Method RemoveAll Description: Removes all key, item pairs from a Dictionary object Usage: Object.RemoveAll( ) Arguments: None Return: None Example: Dim a, d Set d = CreateObject(“Scripting.Dictionary”) d.Add “a”, “Chicago” d.Add “b”, “New York” d.RemoveAll ‘ Removes all key/item pairs InduSoft, Ltd. 215
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VBScript Reference Manual for InduSoft Web Studio

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