How to declare Hashtable or ArrayList in XAML.

To declare Hashtable or ArrayList in xaml, we need to include the System.Collection namespaces in XAML by using the below key
        xmlns:col='clr-namespace:System.Collections;assembly=mscorlib'
After declaring the namespace we can use all the class of System.Collection namespace with col: prefix

Code to Declare the HashTable in XAML:

<col:Hashtable x:Key='hash'>
       <col:DictionaryEntry x:Key='hashEntry1' Key='1' Value='a'></col:DictionaryEntry>
       <col:DictionaryEntry x:Key='hashEntry2' Key='2' Value='b'></col:DictionaryEntry>
       <col:DictionaryEntry x:Key='hashEntry3' Key='3' Value='c'></col:DictionaryEntry>
       <col:DictionaryEntry x:Key='hashEntry4' Key='4' Value='d'></col:DictionaryEntry>
</col:Hashtable>

Code to Declare the ArrayList in XAML:

<col:ArrayList x:Key='arrList'>
            <sys:String>Ram</sys:String>
            <sys:String>Shyam</sys:String>
            <sys:String>Mohan</sys:String>
            <sys:String>Rohan</sys:String>

</col:ArrayList>