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Saxon API for .NET |

# XQueryCompiler.Compile Method (String)

Compile a query supplied as a String.

public XQueryExecutable Compile(
string query
);

#### Parameters

query
  A string containing the source text of the query

#### Return Value

An `XQueryExecutable` which represents the compiled query object. The XQueryExecutable may be run as many times as required, in the same or a different thread. The `XQueryExecutable` is not affected by any changes made to the `XQueryCompiler` once it has been compiled.

#### Remarks

Using this method the query processor is provided with a string of Unicode characters, so no decoding is necessary. Any encoding information present in the version declaration is therefore ignored.

#### Exceptions

Exception Type | Condition
--- | ---
StaticError | Throws a StaticError if errors were detected during static analysis of the query. Details of the errors will be added as StaticError objects to the ErrorList if supplied; otherwise they will be written to the standard error stream. The exception that is returned is merely a summary indicating the status.

#### Example

                XQueryExecutable q = compiler.Compile("distinct-values(//*/node-name()");

#### See Also

XQueryCompiler Class | Saxon.Api Namespace | XQueryCompiler.Compile Overload List