How to iterate through Dictionary key value in foreach loop

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what i want to do is .. if perticular key matches with my string then i want to display that dictionaries value ..

Posted 19-Jul-13 22:58pm

Torakami

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Abhinav S · Answer 1 · 2013-07-19T23:03:00

Solution 1

You don't need to loop though the dictionary.
You can just check if the dictionary key contains that key value,
If it does, then access it directly.

For e.g.

if (myDict.Contains(strng))
{
   Console.WriteLine(myDict[strng]);
}
else
{
   Console.WriteLine("Not Found");
}

Posted 19-Jul-13 23:03pm

Abhinav S

v2

Zafar A khan · Answer 2 · 2013-07-19T23:16:00

no need for foreach loop do it like this

C#

 Dictionary<string,string> dic = new Dictionary<string,string>();
   dic.Add("1", "abc");
   dic.Add("2", "bcd");
   dic.Add("3", "nadeem");
   string dicvalue = "";
   if (dic.ContainsKey("3"))
     {
       dic.TryGetValue("3", out dicvalue); // initialize the dicvalue with the corresponding key vlaue
     }
else
{
  // value not exist
}
// value of the key is stored in dicvalue   variable
//display the dicvalue  variable  value

Matt T Heffron · Answer 3 · 2014-06-18T13:21:00

Zafar is almost right. This is better:

C#

Dictionary<string,string> dic = new Dictionary<string,string>();
dic.Add("1", "abc");
dic.Add("2", "bcd");
dic.Add("3", "nadeem");
string dicvalue = "";
if (!dic.TryGetValue("3", out dicvalue))  // get the value for key "3" into dicvalue if it is there, return false if not there
{
  // value not exist
}
// value of the key is stored in dicvalue   variable
//display the dicvalue  variable  value

How to iterate through Dictionary key value in foreach loop

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