getDatasetValueByIndex

This function is used by Ignition's Expression language.

Description

note

This function is only available in Transaction Group Expression Items and Expression Tags.

Retrieves a value from a global variable DatasetName created using the ExecuteQuery function.

Syntax

getDatasetValueByIndex(datasetName, row, column, fallback)

• Parameters

  • string datasetName - The name of the dataset created using the executeQuery function.

  • int row - The row index

  • int column - The column index.

  • Object fallback - A fallback value if the lookup fails.

• Results

  • Object - The value at the given row and column index. They type returned matches the type of the value selected.

Examples

For example, suppose you had a dataset called 'MyResult' with this information in it:

ProductCode	Quantity	Weight
BAN_002	380	3.243
BAN_010	120	9.928
APL_000	125	1.287
FWL_220	322	7.889

Code Snippet

getDatasetValueByIndex("MyResult", 0, 1, -1)  //would return 380
getDatasetValueByIndex("MyResult", 1, 2, -1)  //would return 9.928
getDatasetValueByIndex("MyResult", 0, 3, -1) //would return -1 because there is no fourth column and it reverts to the fallback value.