Select Features by Drawing a Polygon

[ShaningYu]

I need a component to select features by drawing a polygon.  Do you know where this piece of code can be found?  Thanks.

[RobertScheitlin__GISP]

Shaning,

  You will use the Draw Toolbar to draw your polygon geometry.

Draw | API Reference | ArcGIS API for JavaScript

Then you will use the geometry to execute a QueryTask or a selectFeatures method on a FeatureLayer.

[TimWitt2 · Accepted solution]

Instead of buffering a point just use the geometry of a drawing.

Select with Feature Layer | ArcGIS API for JavaScript

[ShaningYu]

Thanks to both Rob and Tim.  Both answers are correct.  Sorry for the restriction to credit for 2.

[TimWitt2]

You can always mark Roberts answer as helpful.