Creating FeatureDataset in a FileGDB using Form C# Code

TauhidulIslam

Hello Everyone,
this is Tauhid from Bangladesh. I am a beginner in ArcGIS development with C#. Now i Am trying to create a featuredataset using ISpatialReferenceDialogBox in a fileGDB. but I am stuck with the code. Of my form the groupbox named as Frame1 which is contain the cmdDataSet button . the code is given Below:

private void cmdDataSet_Click(object sender, EventArgs e)
        {
            string strdatabasePath = "C:\\" + @txtProject.Text + "\\Survey\\Data_Table\\" + @txtDatabase.Text + @txtSub.Text;

            if (!Directory.Exists(strdatabasePath) == false)
            {
                MessageBox.Show("Destination Directory was not Found, Please Create the Directory First");
            }

            IWorkspaceFactory pWSF = new FileGDBWorkspaceFactoryClass();

            Boolean blsWorkspace = pWSF.IsWorkspace("C:\\" + @txtProject.Text + "\\Survey\\GeoDatabase\\" + @txtDatabase.Text + "\\" + @txtDatabase.Text +".gdb");
            if (blsWorkspace == true)
            {
                IWorkspace pWorkspace = pWSF.OpenFromFile("C:\\" + @txtProject.Text + "\\Survey\\GeoDatabase\\" + @txtDatabase.Text + "\\" + @txtDatabase.Text + ".gdb", 0);
                IFeatureWorkspace pfeatureWorkspace = (IFeatureWorkspace)pWorkspace;
                IEnumDatasetName pEnumDatasetName = pWorkspace.get_DatasetNames(esriDatasetType.esriDTFeatureDataset);
                IDatasetName pDatasetName = pEnumDatasetName.Next();

                string theDatasetName;
                int theValue;

                while (pDatasetName == null)
                {
                    theDatasetName = pDatasetName.Name;
                    if (theDatasetName == txtSub.Text)
                    {
                        theValue = 1;
                    }
                    pDatasetName = pEnumDatasetName.Next();
                }
                if (theValue == null)
                {
                    ISpatialReferenceDialog pSpaRef = new SpatialReferenceDialogClass();
                    ISpatialReference m_SpaRef1 = pSpaRef.DoModalCreate(true, true, true, Frame1.ActiveControl);
                    IFeatureDataset pfeatDataset;
                    while m_SpaRef1 == false
                    {
                        pfeatDataset = pfeatureWorkspace.CreateFeatureDataset(txtSub.Text, m_SpaRef1);
                        MessageBox.Show("FeatureDataset Created");
                    }
                    MessageBox.Show("No Spatial Reference Found, Feature Dataset was Not Created");
                }

                   

            }

        }


But its not working. It shows error in "ISpatialReference m_SpaRef1 = pSpaRef.DoModalCreate(true, true, true, Frame1.ActiveControl);" this part of code. Can Anyone please give me the solution? I tried to find the solution but can't fix it.


Tauhid
GIS Specialist
NERCA International Ltd

SaurabhDasgupta

Hello John,
Thanks for your help, but this wont help either.. My main problem is in the ISpatialReferenceDialog that I am using but it won't work.can you please help me on that part of the code?

ISpatialReferenceDialog pSpaRef = new SpatialReferenceDialogClass();
                    ISpatialReference m_SpaRef1 = pSpaRef.DoModalCreate(true, true, true, Frame1.ActiveControl());

here Activecontrol is not working so that the spatial reference dialogbox won't show up while I was trying to create the feature Dataset inside a fileGeoDatabase using a button click.

Tauhid

Hi Tauhid,
            Instead of using
ISpatialReferenceDialog pSpaRef = new SpatialReferenceDialogClass();
ISpatialReference m_SpaRef1 = pSpaRef.DoModalCreate(true, true, true, Frame1.ActiveControl());

you can use some thing like this

ISpatialReferenceFactory spatialReferenceFactory = new SpatialReferenceEnvironment();
            ISpatialReferenceResolution spatialReferenceResolution = spatialReferenceFactory.CreateProjectedCoordinateSystem((int)esriSRProjCSType.esriSRProjCS_GDA1994MGA_50) as ISpatialReferenceResolution;
            spatialReferenceResolution.ConstructFromHorizon();
            ISpatialReferenceTolerance spatialReferenceTolerance = spatialReferenceResolution as ISpatialReferenceTolerance;
            spatialReferenceTolerance.SetDefaultXYTolerance();
            ISpatialReference fdsSR = spatialReferenceResolution as ISpatialReference;

            pfeatDataset = pfeatureWorkspace.CreateFeatureDataset(fdsName, fdsSR);

Hope this helps you.

~Saurabh