C# Class SharpMap.Data.Providers.MsSql

Inheritance: IFeatureProvider, IFileBased, IDisposable

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Public Methods

Method	Description
Close ( ) : void	Closes the datasource
CreateDataTable ( SharpMap datasource, string tablename, string connstr ) : int	Creates a new table in a Microsoft SQL Server database and copies rows from an existing datasource. The datatable created will contain six extra columns besides the attribute data: "OID" (Object ID row), "WKB_Geometry" (Geometry stored as WKB), and Envelope_MinX, Envelope_MinY, Envelope_MaxX, Envelope_MaxY for geometry bounding box. Upload a ShapeFile to a database: public void CreateDatabase(string shapeFile) { if (!System.IO.File.Exists(shapeFile)) { MessageBox.Show("File not found"); return; } ShapeFile shp = new ShapeFile(shapeFile, false); //Create tablename from filename string tablename = shapeFile.Substring(shapeFile.LastIndexOf('\\') + 1, shapeFile.LastIndexOf('.') - shapeFile.LastIndexOf('\\') - 1); //Create connectionstring string connstr = @"Data Source=.\SQLEXPRESS;AttachDbFilename=\|DataDirectory\|GeoDatabase.mdf;Integrated Security=True;User Instance=True"; int count = SharpMap.Data.Providers.MsSql.CreateDataTable(shp, tablename, connstr); MessageBox.Show("Uploaded " + count.ToString() + " features to datatable '" + tablename + "'"); }
Dispose ( ) : void	Disposes the object
ExecuteIntersectionQuery ( SharpMap geom, FeatureDataSet ds ) : void	Returns the features that intersects with 'geom' [NOT IMPLEMENTED]
ExecuteIntersectionQuery ( SharpMap bbox, SharpMap ds ) : void	Returns all features with the view box
GetExtents ( ) : SharpMap.Geometries.BoundingBox	Boundingbox of dataset
GetFeature ( uint RowID ) : SharpMap.Data.FeatureDataRow	Returns a datarow based on a RowID
GetFeatureCount ( ) : int	Returns the number of features in the dataset
GetGeometriesInView ( SharpMap bbox ) : List	Returns geometries within the specified bounding box
GetGeometryByID ( uint oid ) : SharpMap.Geometries.Geometry	Returns the geometry corresponding to the Object ID
GetObjectIDsInView ( SharpMap bbox ) : List	Returns geometry Object IDs whose bounding box intersects 'bbox'
GetXYTolerance ( ) : double?
MsSql ( string ConnectionStr, string tablename, string geometryColumnName, string OID_ColumnName ) : System	Initializes a new connection to MS Sql Server
Open ( ) : void	Opens the datasource

Private Methods

Method	Description
Dispose ( bool disposing ) : void
GetBoxClause ( SharpMap bbox ) : string
Type2SqlType ( Type t ) : SqlDbType	Returns the name of the SqlServer datatype based on a .NET datatype

Method Details

Close() public method

Closes the datasource

public Close ( ) : void
return	void

CreateDataTable() public static method

Creates a new table in a Microsoft SQL Server database and copies rows from an existing datasource.

The datatable created will contain six extra columns besides the attribute data: "OID" (Object ID row), "WKB_Geometry" (Geometry stored as WKB), and Envelope_MinX, Envelope_MinY, Envelope_MaxX, Envelope_MaxY for geometry bounding box.

Upload a ShapeFile to a database: public void CreateDatabase(string shapeFile) { if (!System.IO.File.Exists(shapeFile)) { MessageBox.Show("File not found"); return; } ShapeFile shp = new ShapeFile(shapeFile, false); //Create tablename from filename string tablename = shapeFile.Substring(shapeFile.LastIndexOf('\\') + 1, shapeFile.LastIndexOf('.') - shapeFile.LastIndexOf('\\') - 1); //Create connectionstring string connstr = @"Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|GeoDatabase.mdf;Integrated Security=True;User Instance=True"; int count = SharpMap.Data.Providers.MsSql.CreateDataTable(shp, tablename, connstr); MessageBox.Show("Uploaded " + count.ToString() + " features to datatable '" + tablename + "'"); }

public static CreateDataTable ( SharpMap datasource, string tablename, string connstr ) : int
datasource	SharpMap	Datasource to upload
tablename	string	Name of table to create (existing table will be overwritten!)
connstr	string	Connection string to database
return	int

Dispose() public method

Disposes the object

public Dispose ( ) : void
return	void

ExecuteIntersectionQuery() public method

Returns the features that intersects with 'geom' [NOT IMPLEMENTED]

public ExecuteIntersectionQuery ( SharpMap geom, FeatureDataSet ds ) : void
geom	SharpMap
ds	FeatureDataSet	FeatureDataSet to fill data into
return	void

ExecuteIntersectionQuery() public method

Returns all features with the view box

public ExecuteIntersectionQuery ( SharpMap bbox, SharpMap ds ) : void
bbox	SharpMap	view box
ds	SharpMap	FeatureDataSet to fill data into
return	void

GetExtents() public method

Boundingbox of dataset

public GetExtents ( ) : SharpMap.Geometries.BoundingBox
return	SharpMap.Geometries.BoundingBox

GetFeature() public method

Returns a datarow based on a RowID

public GetFeature ( uint RowID ) : SharpMap.Data.FeatureDataRow
RowID	uint
return	SharpMap.Data.FeatureDataRow

GetFeatureCount() public method

Returns the number of features in the dataset

public GetFeatureCount ( ) : int
return	int

GetGeometriesInView() public method

Returns geometries within the specified bounding box

public GetGeometriesInView ( SharpMap bbox ) : List
bbox	SharpMap
return	List

GetGeometryByID() public method

Returns the geometry corresponding to the Object ID

public GetGeometryByID ( uint oid ) : SharpMap.Geometries.Geometry
oid	uint	Object ID
return	SharpMap.Geometries.Geometry

GetObjectIDsInView() public method

Returns geometry Object IDs whose bounding box intersects 'bbox'

public GetObjectIDsInView ( SharpMap bbox ) : List
bbox	SharpMap
return	List

GetXYTolerance() public method

public GetXYTolerance ( ) : double?
return	double?

MsSql() public method

Initializes a new connection to MS Sql Server

public MsSql ( string ConnectionStr, string tablename, string geometryColumnName, string OID_ColumnName ) : System
ConnectionStr	string	Connectionstring
tablename	string	Name of data table
geometryColumnName	string	Name of geometry column
OID_ColumnName	string	Name of column with unique identifier
return	System

Open() public method

Opens the datasource

public Open ( ) : void
return	void