/////////////////////////////////////////////////////////////////////////////////////////////
// create a shapefile
public IFeatureClass CreateShapefile(string strShapeFolder, FeatureSource selLayer, string shpFileName)
{
Console.WriteLine(shpFileName);
// prepared the shapefile fodler
try
{
if (!System.IO.Directory.Exists(strShapeFolder))
System.IO.Directory.CreateDirectory(strShapeFolder);
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
// if shapefile already exists, overwrite?
string shpfileName = strShapeFolder + "\\" + shpFileName + ".shp";
string dbffileName = strShapeFolder + "\\" + shpFileName + ".dbf";
string shxfileName = strShapeFolder + "\\" + shpFileName + ".shx";
if (File.Exists(shpfileName) || File.Exists(dbffileName) || File.Exists(shxfileName))
{
if (MessageBox.Show("shape file: " + strShapeFolder + "\\" + selLayer.Name + " already exists", "overwrite?", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.No)
return null;
else
{
File.Delete(shpfileName);
File.Delete(dbffileName);
File.Delete(shxfileName);
}
}
// create workspace
IWorkspaceFactory pWSF = new ShapefileWorkspaceFactoryClass();
IFeatureWorkspace pWS = (IFeatureWorkspace)pWSF.OpenFromFile(strShapeFolder, 0);
// get the feature table
FeatureDataTable ftable = selLayer.GetDataTable();
int rowCount = ftable.Rows.Count;
int colCount = ftable.Columns.Count;
int geometryColIndex = ftable.GeometryColumnIndex;
// create fields
//fields
ESRI.ArcGIS.Geodatabase.IFields pFields = new FieldsClass();
IFieldsEdit pFieldsEdit = (IFieldsEdit)pFields;
pFieldsEdit.FieldCount_2 = colCount;
Console.WriteLine("Colume Counts = " + colCount.ToString());
//field
IField pField;
IFieldEdit pFieldEdit;
string shpFldName = "";
for (int col = 0; col < colCount; col++)
{
DataColumn dc = ftable.Columns[col];
pField = new FieldClass();
pFieldEdit = (IFieldEdit)pField;
String colname = dc.ColumnName;
if (colname.Length > 10)
{
colname = colname.Substring(0, 8) + col.ToString();
}
pFieldEdit.AliasName_2 = colname;
pFieldEdit.Name_2 = colname;
pFieldEdit.IsNullable_2 = true;
pFieldEdit.Editable_2 = true;
Type dt = dc.DataType;
Console.WriteLine(dc.ColumnName + "\t\t" + colname + "\t\t" + dt.ToString());
if (dt == typeof(String))
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
else if ((dt == typeof(Boolean)))
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeSmallInteger;
else if ((dt == typeof(Int16)) || (dt == typeof(Int32)) || (dt == typeof(Int64)))
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeInteger;
else if (dt == typeof(Double))
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeDouble;
else if (dt == typeof(Single))
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeSingle;
else if (dt == typeof(DateTime))
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeDate;
else if (dt == typeof(Guid))
//pFieldEdit.Type_2 = esriFieldType.esriFieldTypeGUID; // not supported by shapefile
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
else if (dt == typeof(ESRI.ArcGIS.Mobile.GlobalId))
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
//pFieldEdit.Type_2 = esriFieldType.esriFieldTypeGlobalID; // not supported by shapefile
else if (dt == typeof(Bitmap)) // raster or blob, not supported by shapefile,
{
Console.WriteLine(dc.ColumnName + ": raster field found\n");
string folder = strShapeFolder + "\\" + dc.ColumnName;
try
{
if (!Directory.Exists(folder))
Directory.CreateDirectory(folder);
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
return null;
}
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
}
else if (dt == typeof(System.Byte[])) // raster or blob, not supported by shapefile,
{
Console.WriteLine(dc.ColumnName + ": blob field found\n");
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
}
else if (dt == typeof(Bitmap)) // raster or blob, not supported by shapefile,
{
Console.WriteLine(dc.ColumnName + ": raster field found\n");
string folder = strShapeFolder + "\\" + dc.ColumnName;
try
{
if (!Directory.Exists(folder))
Directory.CreateDirectory(folder);
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
return null;
}
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
}
else if (dt == typeof(System.Byte[])) // raster or blob, not supported by shapefile,
{
Console.WriteLine(dc.ColumnName + ": blob field found\n");
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
}
else if (dt == typeof(ESRI.ArcGIS.Mobile.Geometries.Geometry))
{
Console.WriteLine("geometry field found\n");
shpFldName = dc.ColumnName;
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeGeometry;
IGeometryDef pGeoDef = new GeometryDefClass();
IGeometryDefEdit pGeoDefEdit = (IGeometryDefEdit)pGeoDef;
pGeoDefEdit.GeometryType_2 = (ESRI.ArcGIS.Geometry.esriGeometryType)selLayer.GeometryType;
pGeoDefEdit.SpatialReference_2 = new ESRI.ArcGIS.Geometry.UnknownCoordinateSystemClass();
pFieldEdit.GeometryDef_2 = pGeoDef;
}
else
{
throw (new Exception("different data type found, modify the code"));
}
// add the field to fields
pFieldsEdit.set_Field(col, pFieldEdit);
}
for (int ii = 0; ii < pFields.FieldCount; ii++)
{
Console.WriteLine(pFields.get_Field(ii).Name + "\t\t" + pFields.get_Field(ii).Type.ToString());
}
//create shapefile
IFeatureClass fc = null;
try
{
fc = pWS.CreateFeatureClass(shpFileName, pFields, null, null, esriFeatureType.esriFTSimple, shpFldName, "");
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
if (fc != null)
return fc;
else
return null;
}
