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
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- public Sketch FirstData()
- {
- // return Datas[Datas.Count];
- foreach (Object data in Datas)
- {
- if (data is Door)
- {
- 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 = (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);
- }
how can i slove this problem?
can any one help me in this