Practical usage of Removing Item from Generic Dictionary<K,T>

In this Blog we are going to see, How to Remove item from the Dictionary Collection.

In this Blog we are going to see, How to Remove item from the Dictionary Collection.

Step 1:                 Adding items to Dictionary as KeyValuePair

 

            Dictionary<int, string> dic = new Dictionary<int, string>();

            dic.Add(1, "Lajapathy");

            dic.Add(2, "Parthiban");

            dic.Add(3, "AnandBabu");

            dic.Add(4, "Sathiya");

                          

Step 2:                 Displaying the Dictionary Items

 

            foreach (KeyValuePair<int, string> tempDic in dic)

            {

                Response.Write("Key :" + tempDic.Key + " value :" + tempDic.Value + "<br/>");

            }

 

Step 2:                 Removing item from the Dictionary

            bool isRemoved = dic.Remove(2); 

            Response.Write(isRemoved + "<br/>");

 

Step 3:                 Displaying Items after Removing

            foreach (KeyValuePair<int, string> tempDic in dic)

            {

                Response.Write("Key :" + tempDic.Key + " value :" + tempDic.Value + "<br/>");

            }

OUTPUT:

Key :1 value :Lajapathy
Key :2 value :Parthiban
Key :3 value :AnandBabu
Key :4 value :Sathiya

True (Tells Item is removed)
Key :1 value :Lajapathy
Key :3 value :AnandBabu
Key :4 value :Sathiya