C#

lukeer wrote:

How can I serialize the collection including all objects derived from MyFantasticBaseClass?

public class SecondDerivedClass : MyFantasticBaseClass
  {
      private double _zoom = 1.0;
      private MyFantasticBaseClass _linkedElement = null;

      public double Zoom
      {
          get { return (_zoom); }
          set { _zoom = value; }
      }

      public MyFantasticBaseClass LinkedElement
      {
          get { return (_linkedElement); }
          set { _linkedElement = value; }
      }
  }

bmp.SetResolution(e.Graphics.DpiX, e.Graphics.DpiY);

foreach(Datatable dt in ds)//ds is dataset
{
   switch(dt.TableName)
   {
      case A:
          foreach(DataRow dr in dt.Rows)
          {
             //code
             //Calling check method
          }
      break;
      .
      //like wise many cases 
      .
      .
      case Z:
         //same foreach loop as previous
       break;
    }
}

Hum Dum wrote:

Whats the diffrence?

Hum Dum wrote:

and when to use which?

I are Troll

private DataRow CreateNewRow(DataTable table);
private bool IsDataRowValid(DataRow row);
private DataTable LoadDataTable();
private string CalculateSomeImportantDataFromRow(DataRow row);

Ennis Ray Lynch, Jr. wrote:

2) Try to avoid using members as global variables. You introduce a lot of state into your objects that can be difficult to manage.

Ennis Ray Lynch, Jr. wrote:

3) checkValue is misspelled. No matter which naming convention you use BE CONSISTENT! Your method should have been named CheckValue and yes it is an important distinction since checkValue tells experienced c# developers they are looking for a local variable.

Ennis Ray Lynch, Jr. wrote:

5) Your two samples actually have different results! See if you can find it.

Ennis Ray Lynch, Jr. wrote:

6) Never use implicit scope.

Ennis Ray Lynch, Jr. wrote:

I would provide a good example of how to do what you are asking

public static class Foo{


private static DataTable GetDataTableFromFile(string filePath);
private static bool IsRowValid(DataRow dataRow);
private static void WriteRowToStream(Stream stream);

public static void OutputXmlFileToTextFileOrSomeOtherJunk(string inputFilePath, string outputFilePath){
    DataTable data = GetDataTableFromFile(inputFilePath)
    //if you want to sort, use data.DefaultView.Sort and
    //then loop on foreach(System.Data.DataRowView v in data.DefaultView)
    using(FileStream stream = new FileStream(outpuFilePath, FileMode.Create, FileAccess.ReadWrite)){
        foreach(DataRow row in data.Rows){
            if(IsRowValid(row)){
                WriteRowToStream(row);
            }
        }

    }
}
}