C# | Dictionary.ContainsValue() Method
This method is used to check whether the Dictionary<TKey,TValue> contains a specific value or not.
Syntax:
public bool ContainsValue (TValue value);
Here, the value is the Value to locate in the Dictionary Return Value: This method returns true if the Dictionary contains an element with the specified value otherwise it returns false. Below are the programs to illustrate the use of Dictionary<TKey,TValue>.ContainsValue() Method: Example 1: Example 2: Reference:// C# code to check if a value
// is present or not in a Dictionary.
using
System;
using
System.Collections.Generic;
class
GFG {
// Driver code
public
static
void
Main()
{
// Create a new dictionary of
// strings, with string keys.
Dictionary<
string
,
string
> myDict =
new
Dictionary<
string
,
string
>();
// Adding key/value pairs in myDict
myDict.Add(
"Australia"
,
"Canberra"
);
myDict.Add(
"Belgium"
,
"Brussels"
);
myDict.Add(
"Netherlands"
,
"Amsterdam"
);
myDict.Add(
"China"
,
"Beijing"
);
myDict.Add(
"Russia"
,
"Moscow"
);
myDict.Add(
"India"
,
"New Delhi"
);
// Checking the value "India" but
// here "India" is the key
if
(myDict.ContainsValue(
"India"
))
Console.WriteLine(
"Value : India is present."
);
else
Console.WriteLine(
"Value : India is not present."
);
}
}
Value : India is not present.
// C# code to check if a value is
// present or not in a Dictionary.
using
System;
using
System.Collections.Generic;
class
GFG {
// Driver code
public
static
void
Main()
{
// Create a new dictionary of
// strings, with string keys.
Dictionary<
string
,
string
> myDict =
new
Dictionary<
string
,
string
>();
// Adding key/value pairs in myDict
myDict.Add(
"Australia"
,
"Canberra"
);
myDict.Add(
"Belgium"
,
"Brussels"
);
myDict.Add(
"Netherlands"
,
"Amsterdam"
);
myDict.Add(
"China"
,
"Beijing"
);
myDict.Add(
"Russia"
,
"Moscow"
);
myDict.Add(
"India"
,
"New Delhi"
);
// Checking for value Moscow
if
(myDict.ContainsValue(
"Moscow"
))
Console.WriteLine(
"Value : Moscow is present"
);
else
Console.WriteLine(
"Value : Moscow is absent"
);
}
}
Value : Moscow is present