Imports data from a two-dimensional array of objects to the specified Area . The new data will overwrite values and formulas in the target worksheet cells, but existing formatting will be preserved.

 public Area ImportData(System.Object[][] data, System.String[] columnNames, DataImportProperties properties)

Public Function ImportData(ByVal data As Object()(), ByVal columnNames As String(), ByVal properties As DataImportProperties) As Area

A two-dimensional array of values to import to the worksheet. By default, the first dimension corresponds to row and the second to column (that is, Object[row][column]).
Thus, an array of data { {"A","X"},{"B","Y"},{"C","Z"} } would be inserted into the worksheet as:

A

X

B

Y

C

Z

If you enable DataImportProperties.Transpose , the format will be [row][column], so:
{ {"A","B","C"},{"X","Y","Z"} } would be inserted into the worksheet as:

A

X

B

Y

C

Z

An array of column names for the imported data. columnNames and the column dimension of data must contain the same number of elements.

A DataImportProperties object that contains a set of properties to use when importing data to the area.

An Area object representing the set of cells populated with the imported values.


DataImportProperties importProps = oWorkbook.CreateDataImportProperties();
importProps.Truncate = true;
Area importedArea = a.ImportData(dataArray, fieldNames, importProps);


Dim importProps As DataImportProperties = wb.CreateDataImportProperties()
importProps.Truncate = True
Dim importedArea As Area = a.ImportData(dataArray, fieldNames, importProps)