How to update dictionary value;

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I have

C#

Dictionary<int, myClass> ActiveTabIndex = new Dictionary<int, myClass>();

C#

public class myClass
    {
        public int TabIndex { get; set; }
        public string OdSessionId { get; set; }
        public string TextBoxValue { get; set; }
    }

i am adding value to dictionary like

C#

ActiveTabIndex.Add(1, new myClass{ TabIndex = 1, OdSessionId = "S", TextBoxValue=""});

now i want to update TextBoxValue for Key 1,
like

C#

ActiveTabIndex[1] = new myClass{ TextBoxValue="something"};

but its Resting the other value to default,
How Can I update The value of dictionary for the specific key with out overriding Other value.

What I have tried:

C#

ActiveTabIndex[1] = new myClass{ TextBoxValue="something"};

But Is Updating The Other value toi default

Posted 31-Jul-18 2:01am

Member 11859517

Updated 31-Jul-18 2:06am

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Ehsan Sajjad · Accepted Answer · 2018-07-31T02:07:00

Solution 1

Because you are creating a new object with new state but you need to just update the state of current object.

You need to do it this way :

C#

ActiveTabIndex[1].TextBoxValue="something";

Now you will have just TextBoxValue property of the instance updated with the other properties value retained.

Hope it helps you understand.

Posted 31-Jul-18 2:07am

Ehsan Sajjad

Updated 31-Jul-18 2:09am

v3

Comments

Member 11859517 31-Jul-18 10:01am

how to Retrieve value from the same dictionary

Ehsan Sajjad 31-Jul-18 10:07am

var textValue = ActiveTabIndex[1].TextBoxValue;