private void btnSaveAs_Click(object sender, EventArgs e)
{
SaveFileDialog dialog = new SaveFileDialog
{
Filter = "空间参考文件 (*.prj)|*.prj",
OverwritePrompt = true
};
if (dialog.ShowDialog() == DialogResult.OK)
{
string fileName = dialog.FileName;
ESRI.ArcGIS.esriSystem.IPersistStream stream =
(ESRI.ArcGIS.esriSystem.IPersistStream) this.ispatialReference_0;
IXMLStream stream2 = new XMLStreamClass();
stream.Save((ESRI.ArcGIS.esriSystem.IStream)stream2, 1);
stream2.SaveToFile(fileName);
string str2 = stream2.SaveToString();
int index = str2.IndexOf("[");
str2 = str2.Substring(index - 6);
index = str2.LastIndexOf("]");
str2 = str2.Substring(0, index + 1);
if (File.Exists(fileName))
{
File.Delete(fileName);
}
using (System.IO.FileStream stream3 = File.Create(fileName))
{
this.method_2(stream3, str2);
}
}
}
private void method_5()
{
ESRI.ArcGIS.esriSystem.IPersistStream stream =
(ESRI.ArcGIS.esriSystem.IPersistStream) this.ispatialReference_0;
IXMLStream stream2 = new XMLStreamClass();
stream.Save((ESRI.ArcGIS.esriSystem.IStream)stream2, 1);
string str = stream2.SaveToString();
int index = str.IndexOf("[");
str = str.Substring(index - 6);
index = str.LastIndexOf("]");
str = str.Substring(0, index + 1);
}
unsafe public static void Save(System.Runtime.InteropServices.ComTypes.IStream stream, object data)
{
// Exit if Stream or DataTable is NULL
if (stream == null)
{
return;
}
if (data == null)
{
return;
}
//COM objects needs special care...
if (Marshal.IsComObject(data))
{
//*** Create XmlWriter ***
IXMLWriter xmlWriter = new XMLWriterClass();
//*** Create XmlStream ***
IXMLStream xmlStream = new XMLStreamClass();
//*** Write the object to the stream ***
xmlWriter.WriteTo(xmlStream as IStream);
//*** Serialize object ***
IXMLSerializer xmlSerializer = new XMLSerializerClass();
xmlSerializer.WriteObject(xmlWriter, null, null, "arcobject", "http://www.esri.com/schemas/ArcGIS/9.2", data);
string str = xmlStream.SaveToString();
data = (object)str;
if (null == data)
{
return;
}
}
//make sure that the object is serializable
if (!data.GetType().IsSerializable)
{
throw new Exception("Object is not serializable.");
}
// Convert the string into a byte array
MemoryStream memoryStream = new MemoryStream();
BinaryFormatter binaryFormatter = new BinaryFormatter();
binaryFormatter.Serialize(memoryStream, data);
byte[] bytes = memoryStream.ToArray();
memoryStream.Close();
// Get Memory Pointer to Int32
int cb;
int *pcb = &cb;
// write the object to the structured stream
byte[] arrLen = BitConverter.GetBytes(bytes.Length); // Get Byte Length
stream.Write(arrLen, arrLen.Length, new IntPtr(pcb)); // Write Byte Length
stream.Write(bytes, bytes.Length, new IntPtr(pcb)); // Write Btye Array
if (bytes.Length != cb)
{
throw new Exception("Error writing object to stream");
}
}
unsafe public static void Save(System.Runtime.InteropServices.ComTypes.IStream stream, object data)
{
// Exit if Stream or DataTable is NULL
if (stream == null) { return; }
if (data == null) { return; }
//COM objects needs special care...
if (Marshal.IsComObject(data))
{
//*** Create XmlWriter ***
IXMLWriter xmlWriter = new XMLWriterClass();
//*** Create XmlStream ***
IXMLStream xmlStream = new XMLStreamClass();
//*** Write the object to the stream ***
xmlWriter.WriteTo(xmlStream as IStream);
//*** Serialize object ***
IXMLSerializer xmlSerializer = new XMLSerializerClass();
xmlSerializer.WriteObject(xmlWriter, null, null, "arcobject", "http://www.esri.com/schemas/ArcGIS/9.2", data);
string str = xmlStream.SaveToString();
data = (object)str;
if (null == data)
return;
}
//make sure that the object is serializable
if (!data.GetType().IsSerializable)
throw new Exception("Object is not serializable.");
// Convert the string into a byte array
MemoryStream memoryStream = new MemoryStream();
BinaryFormatter binaryFormatter = new BinaryFormatter();
binaryFormatter.Serialize(memoryStream, data);
byte[] bytes = memoryStream.ToArray();
memoryStream.Close();
// Get Memory Pointer to Int32
int cb;
int* pcb = &cb;
// write the object to the structured stream
byte[] arrLen = BitConverter.GetBytes(bytes.Length); // Get Byte Length
stream.Write(arrLen, arrLen.Length, new IntPtr(pcb)); // Write Byte Length
stream.Write(bytes, bytes.Length, new IntPtr(pcb)); // Write Btye Array
if (bytes.Length != cb)
throw new Exception("Error writing object to stream");
}