MGDwgDataSources.setKeyColumn

Syntax

boolean setKeyColumn(string column) 

Description

Sets the name of the column that contains the primary key for each map feature on the DWG layer.

If this method is successful, it automatically sets the layer's rebuild flag to True. See setRebuild for more information.

Note that this method does not work during a busy state. For additional information about the busy state, refer to "Handling Busy State and Map Refresh" in the Autodesk MapGuide Developer's Guide.

Parameters

column - The name that you want the key column to be set to.

Returns

boolean - Returns True if successful and rebuild occurs when the property changes.

Error Codes

-1 (busy)

Example

This code is designed to work with the 1stfloorplanEx6.mwf file used by the Filter DWG Layers example:

function setProperties()
{
   // Get the map and selected features
   var map = getMap();
   var mapSel = map.getSelection();
   // Use the single map layer Floor Plan
   var mapLayer = map.getMapLayer("Floor Plan");
   // Get DWG data source object for the layer
   var mapLayerSetup = mapLayer.getLayerSetup();
   var dwgMapLayerDataSource = mapLayerSetup.getDwgDataSources();
   dwgMapLayerDataSource.setKeyColumn("newKeyColumn");
}

See Also

getKeyColumn, KeyColumn