Couldn`t load a data from a Geodatabase using the AddDataCommand in vb.net From?

[dgesridgesri]

Greetings,

I`m trying to develop a form in vb.net 2010 that contains ArcEngine MapControl, TOCControl, & ToolbarControl in order to load a data in the map control and view it using the commands in the toolbar control...

I used the following:

 Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load          AxTOCControl1.SetBuddyControl(AxMapControl1)         AxToolbarControl1.SetBuddyControl(AxMapControl1)          'Add generic commands.         AxToolbarControl1.AddItem("esriControls.ControlsOpenDocCommand", -1, -1, False, 0, esriCommandStyles.esriCommandStyleIconOnly)         AxToolbarControl1.AddItem("esriControls.ControlsAddDataCommand", -1, -1, False, 0, esriCommandStyles.esriCommandStyleIconOnly)          'Add page layout navigation commands.         AxToolbarControl1.AddItem("esriControls.ControlsPageZoomInTool", -1, -1, True, 0, esriCommandStyles.esriCommandStyleIconOnly)         AxToolbarControl1.AddItem("esriControls.ControlsPageZoomOutTool", -1, -1, False, 0, esriCommandStyles.esriCommandStyleIconOnly)         AxToolbarControl1.AddItem("esriControls.ControlsPagePanTool", -1, -1, False, 0, esriCommandStyles.esriCommandStyleIconOnly)         AxToolbarControl1.AddItem("esriControls.ControlsPageZoomWholePageCommand", -1, -1, False, 0, esriCommandStyles.esriCommandStyleIconOnly)         'Add map navigation commands.         AxToolbarControl1.AddItem("esriControls.ControlsMapZoomInTool", -1, -1, True, 0, esriCommandStyles.esriCommandStyleIconOnly)         AxToolbarControl1.AddItem("esriControls.ControlsMapZoomOutTool", -1, -1, False, 0, esriCommandStyles.esriCommandStyleIconOnly)         AxToolbarControl1.AddItem("esriControls.ControlsMapPanTool", -1, -1, False, 0, esriCommandStyles.esriCommandStyleIconOnly)         AxToolbarControl1.AddItem("esriControls.ControlsMapFullExtentCommand", -1, -1, False, 0, esriCommandStyles.esriCommandStyleIconOnly)         AxToolbarControl1.AddItem("esriControls.ControlsMapZoomToLastExtentBackCommand", -1, -1, False, 0, esriCommandStyles.esriCommandStyleIconOnly)         AxToolbarControl1.AddItem("esriControls.ControlsMapZoomToLastExtentForwardCommand", -1, -1, False, 0, esriCommandStyles.esriCommandStyleIconOnly)         'Add map inquiry commands.         AxToolbarControl1.AddItem("esriControls.ControlsMapIdentifyTool", -1, -1, True, 0, esriCommandStyles.esriCommandStyleIconOnly)         AxToolbarControl1.AddItem("esriControls.ControlsMapFindCommand", -1, -1, False, 0, esriCommandStyles.esriCommandStyleIconOnly)         AxToolbarControl1.AddItem("esriControls.ControlsMapMeasureTool", -1, -1, False, 0, esriCommandStyles.esriCommandStyleIconOnly)     End Sub

At the runtime when I tried to load a geodatabase, and exactly when I tried to access a personal geodatabase I got the following error:

"Couldn't connect to the database.  Please validate the integrity of the database and/or your network connection and try again."

Please advise !!

Thanks in advance...

[dgesridgesri · Accepted solution]

After posting this form, I tried to add the AxLicenseControl and I select ArcEngine license from the properties and everything went smooth...

Thanks...