Save a MapControl map to an MXD

Question

I used to know how to do this, but I must have lost the code. I tried this:

IMxdContents mxdcontents = mapControl.Map as IMxdContents;
IMapDocument doc = new MapDocumentClass();
doc.ReplaceContents(mxdcontents);
doc.SaveAs("C:\\test.mxd"); 

But I got a "data is not ready to complete operation".

How can I save my ArcEngine mapcontrol map as an .mxd?

Answer 1

You need to do New or Open on the IMapDocument before ReplaceContent is called see the sample for SaveLayerFileCmd.

Answer 2

public void saveMap()
{
    IMapDocument mapDocument = new MapDocumentClass();
    mapDocument.Open(@"[path to your .mxd]", string.Empty);
    if (mapDocument.get_IsReadOnly(@"[path to your .mxd]"))
    {
        System.Windows.Forms.MessageBox.Show("Map document \"" + @"[path to your .mxd]" + "\" is read only!");
        mapDocument.Close();
        return;
    }
    mapDocument.ReplaceContents((IMxdContents)m_mapControl.Map);
    mapDocument.Save(mapDocument.UsesRelativePaths, true);
    mapDocument.Close();
}