Bluebit Software Support Forum / Technical Support and Help / .NET Matrix Library / Saving a matrix to a file and reading it back / Latest PostsInstantForum.NET v4.1.4Bluebit Software Support Forumhttp://www.bluebit.gr/forum/support@bluebit.grThu, 17 May 2012 06:44:46 GMT20<link>http://www.bluebit.gr/forum/Topic63-3-1.aspx</link><description>guille, here is the same code in vb.net[code] Private Sub SaveAndLoadDemo() 'Create a matrix object Dim myMatrix = New Matrix(4, 4) myMatrix.FillRandom() 'Print the matrix Console.WriteLine(myMatrix) 'Save the matrix to an xml file SaveXML(myMatrix, "C:\\MyMatrix.xml") 'Open the saved matrix into another variable Dim mySavedMatrix As Matrix = LoadXML("C:\\MyMatrix.xml") Console.WriteLine(mySavedMatrix) End Sub 'Using XML Serialization to save a matrix Private Sub SaveXML(ByVal matrix As Matrix, ByVal filePath As String) 'Open a file stream Dim fs As System.IO.FileStream = New System.IO.FileStream(filePath, System.IO.FileMode.Create) 'Create a xml Serializer object Dim xmlSer As System.Xml.Serialization.XmlSerializer = New System.Xml.Serialization.XmlSerializer(GetType(Bluebit.MatrixLibrary.Matrix)) 'Save the matrix xmlSer.Serialize(fs, matrix) 'Close the file stream fs.Close() End Sub 'Load a matrix from an XML file Private Function LoadXML(ByVal filePath As String) As Matrix 'Open the XML file Dim FS As System.IO.FileStream = New System.IO.FileStream(filePath, System.IO.FileMode.Open) 'First create a xml Serializer objecT Dim xmlSer As System.Xml.Serialization.XmlSerializer = New System.Xml.Serialization.XmlSerializer(GetType(Bluebit.MatrixLibrary.Matrix)) 'Deserialize the Matrix object Dim matrix As Matrix = CType(xmlSer.Deserialize(FS), Bluebit.MatrixLibrary.Matrix) 'Close the file stream FS.Close() 'Return the matrix object Return matrix End Function 'Using Binary Serialization to save a matrix Private Sub SaveBinary(ByVal matrix As Matrix, ByVal filePath As String) 'Open a file stream Dim fs As System.IO.FileStream = New System.IO.FileStream(filePath, System.IO.FileMode.Create) 'Initialize a BinnaryFormatter object Dim binFor As System.Runtime.Serialization.Formatters.Binary.BinaryFormatter = New System.Runtime.Serialization.Formatters.Binary.BinaryFormatter 'Save the matrix binFor.Serialize(fs, matrix) 'Close the file stream fs.Close() End Sub 'Load a matrix from a binary file Private Function LoadBinary(ByVal filePath As String) As Matrix 'Open a file stream Dim fs As System.IO.FileStream = New System.IO.FileStream(filePath, System.IO.FileMode.Open) 'Initialize a BinnaryFormatter object Dim binFor As System.Runtime.Serialization.Formatters.Binary.BinaryFormatter = New System.Runtime.Serialization.Formatters.Binary.BinaryFormatter 'Deserialize the Matrix object Dim matrix As Matrix = CType(binFor.Deserialize(fs), Bluebit.MatrixLibrary.Matrix) 'Close the file stream fs.Close() 'Return the matrix object Return matrix End Function[/code]</description><pubDate>Mon, 25 Jul 2005 01:26:21 GMT</pubDate><dc:creator>Trifon</dc:creator></item><item><title /><link>http://www.bluebit.gr/forum/Topic63-3-1.aspx</link><description>SaveXML(myMatrix, "C:\\MyMatrix.xml");What is the same code to save matrix but in vb.net? </description><pubDate>Thu, 21 Jul 2005 12:03:25 GMT</pubDate><dc:creator>guille</dc:creator></item><item><title /><link>http://www.bluebit.gr/forum/Topic63-3-1.aspx</link><description>HiIt can be done very easily using either XML or Binary Serialization. Please review the following code example:[code] private void SaveAndLoadDemo() { // Create a matrix object Matrix myMatrix = new Matrix(4, 4); myMatrix.FillRandom(); // Print the matrix Console.WriteLine(myMatrix); // Save the matrix to an xml file SaveXML(myMatrix, "C:\\MyMatrix.xml"); // Open the saved matrix into another variable Matrix mySavedMatrix = LoadXML("C:\\MyMatrix.xml"); Console.WriteLine(mySavedMatrix); } // Using XML Serialization to save a matrix private void SaveXML(Matrix matrix, string filePath) { //Open a file stream System.IO.FileStream fs = new System.IO.FileStream(filePath, System.IO.FileMode.Create) ; // Create a xml Serializer object System.Xml.Serialization.XmlSerializer xmlSer = new System.Xml.Serialization.XmlSerializer(typeof(Bluebit.MatrixLibrary.Matrix)); //Save the matrix xmlSer.Serialize(fs, matrix); // Close the file stream fs.Close(); } // Load a matrix from an XML file private Matrix LoadXML(string filePath) { //Open the XML file System.IO.FileStream fs = new System.IO.FileStream(filePath, System.IO.FileMode.Open) ; // First create a xml Serializer object System.Xml.Serialization.XmlSerializer xmlSer = new System.Xml.Serialization.XmlSerializer(typeof(Matrix)); // Deserialize the Matrix object Matrix matrix = (Matrix) xmlSer.Deserialize(fs); // Close the file stream fs.Close(); // Return the matrix object return matrix; } // Using Binary Serialization to save a matrix private void SaveBinary(Matrix matrix, string filePath) { //Open a file stream System.IO.FileStream fs = new System.IO.FileStream(filePath, System.IO.FileMode.Create) ; // Initialize a BinnaryFormatter object System.Runtime.Serialization.Formatters.Binary.BinaryFormatter binFor = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter(); //Save the matrix binFor.Serialize(fs, matrix); // Close the file stream fs.Close(); } // Load a matrix from a binary file private Matrix LoadBinary(string filePath) { //Open a file stream System.IO.FileStream fs = new System.IO.FileStream(filePath,System.IO.FileMode.Open) ; // Initialize a BinnaryFormatter object System.Runtime.Serialization.Formatters.Binary.BinaryFormatter binFor = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter(); // Deserialize the Matrix object Matrix matrix = (Matrix) binFor.Deserialize(fs); // Close the file stream fs.Close(); // Return the matrix object return matrix; }[/code]</description><pubDate>Fri, 17 Jun 2005 00:29:15 GMT</pubDate><dc:creator>Trifon</dc:creator></item><item><title>Saving a matrix to a file and reading it backhttp://www.bluebit.gr/forum/Topic63-3-1.aspxHello,I’m using the .NET Matrix Library. I have one question, and I can’t find the answer.Is there a way to store a matrix on disk, and read it again from the disc back to the application? I know that I can use the .ToString method to save the matrix in a text file, but how can I then read the matrix back to my application? I want to save the matrix on disc because I don’t want to create the matrix always from scratch.Thank you for your answer.Fri, 17 Jun 2005 00:21:22 GMTanonymous