How do you check whether a DataReader is closed or opened?

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There is a property named “IsClosed” property is used to check whether a DataReader is closed or opened. This property returns a true value if a Data Reader is closed, otherwise a false value is returned.

To check whether a DataReader is closed or opened in .NET, you can use the IsClosed property. This property returns a boolean value indicating whether the DataReader is closed (true) or open (false). Here’s how you would use it:

csharp
using System.Data.SqlClient; // or the appropriate namespace for your data provider

// Assuming you have a SqlDataReader object named reader
if (reader.IsClosed)
{
Console.WriteLine("DataReader is closed.");
}
else
{
Console.WriteLine("DataReader is open.");
}

This code snippet checks if the DataReader named reader is closed or open and prints an appropriate message based on its state.