C# | Check if the Hashtable contains a specific Value
The Hashtable class represents a collection of key-and-value pairs that are organized based on the hash code of the key. The key is used to access the items in the collection. Hashtable.ContainsValue(Object) Method is used to check whether the Hashtable contains a specific value or not.
Syntax:
public virtual bool ContainsValue(object value);
Parameter:
value: The value of type System.Object to locate in the Hashtable. The value can be null.
Return Type: This method returns true if the Hashtable contains an element with the specified value otherwise it returns false. The return type of this method is System.Boolean.
Below given are some examples to understand the implementation in a better way:
Example 1:
using System;
using System.Collections;
class GFG {
public static void Main()
{
Hashtable myTable = new Hashtable();
myTable.Add( "g" , "geeks" );
myTable.Add( "c" , "c++" );
myTable.Add( "d" , "data structures" );
myTable.Add( "q" , "quiz" );
if (myTable.ContainsValue( "c++" ))
Console.WriteLine( "myTable contains the Value" );
else
Console.WriteLine( "myTable doesn't contain the Value" );
}
}
|
Output:
myTable contains the Value
Example 2:
using System;
using System.Collections;
class GFG {
public static void Main()
{
Hashtable myTable = new Hashtable();
myTable.Add( "India" , "Country" );
myTable.Add( "Chandigarh" , "City" );
myTable.Add( "Mars" , "Planet" );
myTable.Add( "China" , "Country" );
if (myTable.ContainsKey( "Ocean" ))
Console.WriteLine( "myTable contains the Value" );
else
Console.WriteLine( "myTable doesn't contain the Value" );
}
}
|
Output:
myTable doesn't contain the Value
Reference:
Last Updated :
01 Feb, 2019
Like Article
Save Article
Share your thoughts in the comments
Please Login to comment...