Expression.TryCatch Method

Creates a TryExpression representing a try block with any number of catch statements and neither a fault nor finally block.

Namespace:  System.Linq.Expressions
Assembly:  System.Core (in System.Core.dll)

public static TryExpression TryCatch(
	Expression body,
	params CatchBlock[] handlers


Type: System.Linq.Expressions.Expression
The body of the try block.
Type: System.Linq.Expressions.CatchBlock[]
The array of zero or more CatchBlock expressions representing the catch statements to be associated with the try block.

The following example demonstrates how to create a TryExpression object that contains a catch statement.

// Add the following directive to the file:
// using System.Linq.Expressions;  

// A TryExpression object that has a Catch statement.
// The return types of the Try block and all Catch blocks must be the same.
TryExpression tryCatchExpr =
            Expression.Throw(Expression.Constant(new DivideByZeroException())),
            Expression.Constant("Try block")
            Expression.Constant("Catch block")

// The following statement first creates an expression tree,
// then compiles it, and then runs it.
// If the exception is caught, 
// the result of the TryExpression is the last statement 
// of the corresponding Catch statement.
outputBlock.Text += Expression.Lambda<Func<string>>(tryCatchExpr).Compile()() + "\n";

// This code example produces the following output:
// Catch block


Supported in: 5, 4

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.