ImportData method
Imports data as a DataSet object; similar to the Import Data Wizard.
Applies to
Collections: DataSets
Syntax
Click a parameter to jump to its description below.
object .ImportData(DataSourceMoniker, [ArrayOfFields], [Country], [Delimiter], [ImportFlags])
Parameters
Part | Description | |||||||||||||||||||||||||||
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object | Required. An expression that returns a DataSets collection. | |||||||||||||||||||||||||||
DataSourceMoniker | Required String. File name to import. Can also provide information on which part of the file to import. See the DataSourceMoniker syntax topic for the correct syntax to use for this parameter. | |||||||||||||||||||||||||||
ArrayOfFields | Optional Variant. A two-column array:
The first column contains the field name or an integer representing the field index (which starts at 1) of each field to import. If a Field object is not listed in the array, then it is given a GeographicFieldType property of geoFieldSkipped. The second column designates one of three ways to treat the record: Use a GeoFieldType value, which MapPoint will geocode (see GeoFieldType values for a list of values and their descriptions). Use a string, which MapPoint will interpret as the field name for geoFieldData. Leave blank to have MapPoint determine the field's contents and title. If this parameter is not supplied, then all fields in the data source are imported. | |||||||||||||||||||||||||||
Country | Optional GeoCountry. Country associated with the data. Default is geoCountryDefault. See the GeoCountry values topic for a list of GeoCountry values and their descriptions. | |||||||||||||||||||||||||||
Delimiter | Optional GeoDelimiter. Characters that separate individual fields. Can be one or more characters. Required for importing text files. Default is geoDelimiterDefault.
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ImportFlags | Optional Long. Provides information about the DataSourceMoniker and the data in the file. Multiple values can be passed by using the Visual Basic "Or" operator (for example, geoImportExcelNamedRange Or geoImportFirstRowIsNotHeadings ).
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Remarks
To open the Import Data Wizard for user input, use the ShowImportWizard method on the DataSets collection.
To learn more about mapping data, see the Getting started with data sets and data mapping reference topic.
Example
Importing data from various sources
Sub ImportFromMultipleSources()
Dim objApp As New MapPoint.Application
objApp.Visible = True
objApp.UserControl = True
Dim szconn As String
Dim oDS As MapPoint.DataSet
With objApp.ActiveMap.DataSets
'Text file with tab
szconn = objApp.Path & "\Samples\Sales.txt"
Set oDS = .ImportData(szconn, , geoCountryUnitedStates, geoDelimiterTab)
'CSV text file
szconn = objApp.Path & "\Samples\Sales.csv"
Set oDS = .ImportData(szconn, , geoCountryUnitedStates, geoDelimiterComma)
'Access database with a table
szconn = objApp.Path & "\Samples\Clients.mdb!Addressestable"
Set oDS = .ImportData(szconn, , geoCountryUnitedStates, , geoImportAccessTable)
'Access database with a query
szconn = objApp.Path & "\Samples\Clients.mdb!AddressQuery"
Set oDS = .ImportData(szconn, , geoCountryUnitedStates, , geoImportAccessQuery)
'Excel sheet
szconn = objApp.Path & "\Samples\Sales.xls!Sheet1"
Set oDS = .ImportData(szconn, , geoCountryUnitedStates, , geoImportExcelSheet)
'Excel sheet R1C1 reference
szconn = objApp.Path & "\Samples\Sales.xls!Sheet1!R1C1:R3C9"
Set oDS = .ImportData(szconn, , geoCountryUnitedStates, , geoImportExcelR1C1)
'Excel sheet named range
szconn = objApp.Path & "\Samples\SampData.xls!First10Clients"
Set oDS = .ImportData(szconn, , geoCountryUnitedStates, , geoImportExcelNamedRange)
End With
End Sub
Note This sample code is specific for use in MapPoint North America; it is for illustration purposes only.
Using the ArrayOfFields parameter
Sub ImportFromMultipleSources()
Dim mpApp As MapPoint.Application
Dim mpDatasets As MapPoint.DataSets
Dim mpDataSet As MapPoint.DataSet
Dim myExampleArray(4, 2)
'Start MapPoint
Set mpApp = New MapPoint.Application
mpApp.Visible = True
mpApp.UserControl = True
'Get the DataSets collection
Set mpDatasets = mpApp.NewMap.DataSets
'Create the ArrayOfFields descriptions
'Field is specified by name
myExampleArray(1, 1) = "Latitude"
'tells MapPoint to use this field as the latitude field
myExampleArray(1, 2) = geoFieldLatitude
'Field again specifed by name
myExampleArray(2, 1) = "Longitude"
'tells MapPoint to use this field as the longitude field
myExampleArray(2, 2) = geoFieldLongitude
'Field is listed by index, rather than name
myExampleArray(3, 1) = 1
'tells MapPoint to use this field as additional (non geocoding) information
myExampleArray(3, 2) = geoFieldData
'Field is specified by source name
myExampleArray(4, 1) = "ExDat"
'New field name after import--when changing the name,
'MapPoint assumes that the type is geoFieldData
myExampleArray(4, 2) = "ExampleData"
'Perform the import
Set mpDataSet = mpDatasets.ImportData("c:\foo.xls!Sheet1!A1:B4", myExampleArray)
'The (x,2) elements are of the type GeoFieldType or string.
'If string, then they set the new name of the field, and
'MapPoint assumes that the field is a nongeocoding data field.
End Sub
Note This code is for illustration purposes only; it will not run as-is.