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ExtJS Interview Questions and Answers

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Ques 36. What is purpose of renderer in grid panel?

Using config option,
renderer: fnCellColor where fnCellColor is method to apply color to a cell.

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Ques 37. How to get selection model used in a grid panel?

Using grid.getSelectionModel(); method

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Ques 38. How to stop editing a record?

newRecord.endEdit();

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Ques 39. How to start editing a record?

newRecord.beginEdit();

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Ques 40. How to commit a record modification?

newRecord.commit();

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