C #-An unhandled exception of Type 'System. stackoverflowexception 'occurred in msco

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An unhandled exception of Type 'System. stackoverflowexception 'occurred in mscorlib. dll in C #

• Monday, February 11,200 amramyanaidu
  0

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  Hi

  I have classes property and sketch in htis property will be linked to skecth class
  And foure different classes which R linked to the skecth class
  And two generic list one is for skecth and other is for data of type object
  When I run the program I iam grtting the error here

  Public sketch firstdata ()
  {
  // Return datas [datas. Count];

  Foreach (Object Data in datas)
  {
  If (data is door)
  {
  DOOR = (door) data;
  }
  If (data is fixture)
  {
  Fixture fixture = (fixture) data;
  }
  If (data is Wall)
  {
  Wall wall = (Wall) data;
  }
  If (data is window)
  {
  Window window = (window) data;
  }
  // Return
  }
  Return getsketch (1 );
  }

  Private sketch getsketch (int32 ID)
  {
  Foreach (Object Data in datas)
  {
  If (data is door)
  {
  DOOR = (door) data;
  Door. ID = ID;
  }
  If (data is fixture)
  {
  Fixture fixture = (fixture) data;
  Fixture. ID = ID;
  }
  If (data is Wall)
  {
  Wall wall = (Wall) data;
  Wall. ID = ID;
  }
  If (data is window)
  {
  Window window = (window) data;
  Window. ID = ID;
  }
  }
  Return getsketch (ID );
  }

  An unhandled exception of Type 'System. stackoverflowexception 'occurred in mscorlib. dll

  How can I slove this problem?
  Can any one help me in this
  

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Answers

• Monday, February 11,200 amrauhanlinnake
  0

  Sign in to votehi!

  The answer is very simple: you are calling a function recursively over and over again, without letting it return which causes a stack overflow.

  Code snippet

  Private sketch getsketch (int32 ID)

  {

  ....

  Return getsketch (ID );

  }

  That is the line causing the method getsketch to be called over and over again. as you see, there is no way the code can get out of the function. I do not know what you are doing with the code, but you sure have to create a sketch object (what ever it is, and return it ).

  Here is a example what cocould be done to make the code work. Note that I do not know anything about the classes or your program

  Code snippet

  Public sketch firstdata ()

  {

  Return getsketch (0); // enough? Shocould it be zero rather that one? Collections are zero-based you know.

  }

  Private sketch getsketch (int id)

  {

  // You have to create a sketch to be returned somewhere

  Sketch sketch = new sketch ();

   

  Foreach (Object Data in datas)

  {

  // Todo: What to do with the door, fixture, wall and window?

  If (data is door)

  {

  DOOR = (door) data;

  Door. ID = ID;

   

  // Sketch. Add (door); //: d Just a guess

  }

  Else if (data is fixture) // use else-If's, because data object cannot be different things at a time

  {

  Fixture fixture = (fixture) data;

  Fixture. ID = ID;

   

  // Sketch. Add (fixture); //: d Just a guess

  }

  Else if (data is Wall)

  {

  Wall wall = (Wall) data;

  Wall. ID = ID;

   

  // Sketch. Add (Wall); //: d Just a guess

  }

  Else if (data is window)

  {

  Window window = (window) data;

  Window. ID = ID;

   

  // Sketch. Add (window); //: d Just a guess

  }

  }

   

  // You have to return an object instead calling the same function over and over again

  Return sketch;

  }

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• Monday, February 11,200 amrauhanlinnake
  0

  Sign in to votehi!

  The answer is very simple: you are calling a function recursively over and over again, without letting it return which causes a stack overflow.

  Code snippet

  Private sketch getsketch (int32 ID)

  {

  ....

  Return getsketch (ID );

  }

  That is the line causing the method getsketch to be called over and over again. as you see, there is no way the code can get out of the function. I do not know what you are doing with the code, but you sure have to create a sketch object (what ever it is, and return it ).

  Here is a example what cocould be done to make the code work. Note that I do not know anything about the classes or your program

  Code snippet

  Public sketch firstdata ()

  {

  Return getsketch (0); // enough? Shocould it be zero rather that one? Collections are zero-based you know.

  }

  Private sketch getsketch (int id)

  {

  // You have to create a sketch to be returned somewhere

  Sketch sketch = new sketch ();

   

  Foreach (Object Data in datas)

  {

  // Todo: What to do with the door, fixture, wall and window?

  If (data is door)

  {

  DOOR = (door) data;

  Door. ID = ID;

   

  // Sketch. Add (door); //: d Just a guess

  }

  Else if (data is fixture) // use else-If's, because data object cannot be different things at a time

  {

  Fixture fixture = (fixture) data;

  Fixture. ID = ID;

   

  // Sketch. Add (fixture); //: d Just a guess

  }

  Else if (data is Wall)

  {

  Wall wall = (Wall) data;

  Wall. ID = ID;

   

  // Sketch. Add (Wall); //: d Just a guess

  }

  Else if (data is window)

  {

  Window window = (window) data;

  Window. ID = ID;

   

  // Sketch. Add (window); //: d Just a guess

  }

  }

   

  // You have to return an object instead calling the same function over and over again

  Return sketch;

• }