#endif
							TextAreaTabPage tab = this.MainForm.GetTabPageByFileName(dtdFileName);
							dtdStream = tab.TextAreaControl.Document.GetStream();
							resolver = new FileXMLResolver(dtdStream, true);
						}
					}
					this.XMLValidateWithDTD(this.inputTextAreaTabPage.TextAreaControl.FileName, resolver, this.inputTextAreaTabPage.TextAreaControl.Document.GetStream());
					break;

				case ValidationType.Schema:
					Stream schemaStream = null;
					if (this.externalSchemaFileName != null) 
					{
						schemaStream = new FileStream(this.externalSchemaFileName, FileMode.Open, FileAccess.Read, FileShare.Read);
					} 
					else 
					{
						string schemaFileName = (string) this.comboSchemaFileNames[ this.comboSchema.SelectedIndex ];
#if DEBUG
						System.Diagnostics.Debug.Assert(schemaFileName != null);
						System.Diagnostics.Debug.Assert(schemaFileName != String.Empty);
#endif
						TextAreaTabPage tab = this.MainForm.GetTabPageByFileName(schemaFileName);
						schemaStream = tab.TextAreaControl.Document.GetStream();
					}
					this.XMLValidate(this.inputTextAreaTabPage.TextAreaControl.FileName, vType, schemaStream, this.inputTextAreaTabPage.TextAreaControl.Document.GetStream());
					break;
			}
			
			this.MainForm.OutputPanel.AppendTextLine("\r\n---------------------- Done ----------------------\r\n");
		}

		// -------------------------------------------------------------------------
		/// <summary>
		/// Validuje dokument.
		/// </summary>
		/// <returns>true = ak je dokument validny</returns>
		private bool XMLValidate(string fullFileName, ValidationType vType, Stream schemaStream, Stream inputStream) 
		{
			this.isValid = true;
			this.numOfErrors = 0;
				
			XmlValidatingReader xsd = null;

			try 
			{
				
				XmlTextReader xml = new XmlTextReader(inputStream);
				xsd = new XmlValidatingReader(xml);
				xsd.ValidationType = vType;
				xsd.XmlResolver = null;
				if (schemaStream != null) 
				{
					XmlTextReader schemaReader = new XmlTextReader(schemaStream);
					xsd.Schemas.Add(null, schemaReader);
				}

				// Validacne chyby budeme prijimat tu...
				xsd.ValidationEventHandler += new ValidationEventHandler(ValidationErrorHandler);
				 
				// Tu prebehne validacia
				while (xsd.Read())
				{
				}
				xsd.Close();

				if (this.isValid == true) 
				{
					this.MainForm.OutputPanel.AppendTextLine("Document is VALID");
				} 
				else 
				{
					this.MainForm.OutputPanel.AppendTextLine("Document is INVALID");
				}
			}
			catch (UnauthorizedAccessException a)
			{
#if DEBUG
				System.Diagnostics.Debug.WriteLine("UnauthorizedAccessException a");
#endif
				this.MainForm.OutputPanel.AppendTextLine(a.Message);
				this.MainForm.TaskListPanel.AddTask(TaskType.Error, a.Message, fullFileName, 0, 0);
			}
			catch (XmlException a)
			{
#if DEBUG
				System.Diagnostics.Debug.WriteLine("XmlException a");
#endif
				this.MainForm.OutputPanel.AppendTextLine(a.Message);
				this.MainForm.TaskListPanel.AddTask(TaskType.Error, a.Message, fullFileName, a.LineNumber, a.LinePosition);
			}
			catch (Exception a)
			{
#if DEBUG
				System.Diagnostics.Debug.WriteLine("Exception a");
#endif
				this.MainForm.OutputPanel.AppendTextLine(a.Message);
				this.MainForm.TaskListPanel.AddTask(TaskType.Error, a.Message, fullFileName, 0, 0);
			}
			finally 
			{
				if (xsd != null) 
				{
					xsd.Close();
				}
			}
			return this.isValid;
		}

		// -------------------------------------------------------------------------
		/// <summary>
		/// Validuje dokument ci splna zadane DTD
		/// </summary>
		/// <returns>true = ak je dokument validny</returns>
		private bool XMLValidateWithDTD(string fullFileName, System.Xml.XmlResolver resolver, Stream inputStream) 
		{
			this.isValid = true;
			this.numOfErrors = 0;
				
			XmlValidatingReader xsd = null;

			try 
			{
				
				XmlTextReader xml = new XmlTextReader(inputStream);
				xsd = new XmlValidatingReader(xml);
				xsd.ValidationType = ValidationType.DTD;
				xsd.XmlResolver = resolver;
								
				// Validacne chyby budeme prijimat tu...
				xsd.ValidationEventHandler += new ValidationEventHandler(ValidationErrorHandler);
				 
				// Tu prebehne validacia
				while (xsd.Read())
				{
				}
				xsd.Close();

				if (this.isValid == true) 
				{
					this.MainForm.OutputPanel.AppendTextLine("Document is VALID");
				} 
				else 
				{
					this.MainForm.OutputPanel.AppendTextLine("Document is INVALID");
				}
			}
			catch (UnauthorizedAccessException a)
			{
#if DEBUG
				System.Diagnostics.Debug.WriteLine("UnauthorizedAccessException a");
#endif
				this.MainForm.OutputPanel.AppendTextLine(a.Message);
				this.MainForm.TaskListPanel.AddTask(TaskType.Error, a.Message, fullFileName, 0, 0);
			}
			catch (XmlException a)
			{
#if DEBUG
				System.Diagnostics.Debug.WriteLine("XmlException a");
#endif
				this.MainForm.OutputPanel.AppendTextLine(a.Message);
				this.MainForm.TaskListPanel.AddTask(TaskType.Error, a.Message, fullFileName, a.LineNumber, a.LinePosition);
			}
			catch (Exception a)
			{
#if DEBUG
				System.Diagnostics.Debug.WriteLine("Exception a");
#endif
				this.MainForm.OutputPanel.AppendTextLine(a.Message);
				this.MainForm.TaskListPanel.AddTask(TaskType.Error, a.Message, fullFileName, 0, 0);
			}
			finally 
			{
				if (xsd != null) 
				{
					xsd.Close();
				}
			}
			return this.isValid;
		}

		// -------------------------------------------------------------------------
		/// <summary>
		/// Tato vynimka je vyvolavana pri chybe 'validovania'
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="args"></param>
		private void ValidationErrorHandler(object sender, System.Xml.Schema.ValidationEventArgs args) 
		{
			if (this.numOfErrors < 20) 
			{
				this.isValid = false;
				this.MainForm.OutputPanel.AppendTextLine(args.Message);
				this.MainForm.TaskListPanel.AddTask(TaskType.Error, args.Message, this.MainForm.ActualTextAreaControl.FileName, args.Exception.LineNumber, args.Exception.LinePosition);
				this.numOfErrors++;
			}
		}

		// -------------------------------------------------------------------------
		/// <summary>
		/// 'Rozbalenie' combo-boxu na vyber XML Schema suboru
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		private void DropDown_comboSchema(object sender, System.EventArgs e)
		{
			this.externalSchemaFileName = null;
			this.comboSchema.Items.Clear();
			this.comboSchemaFileNames.Clear();
			this.labelSchema.Text = "[internal]";
			FileInfo fileInfo;
			foreach (TextAreaTabPage txtArea in this.MainForm.TabPages) 
			{
				if (txtArea.IsNewFile == true) 
				{
					continue;
				}

				fileInfo = new FileInfo(txtArea.TitleToShow);
			
				if (fileInfo.Extension.ToLower() == ".xsd") 
				{
					this.comboSchema.Items.Insert(0, txtArea.TitleToShow);
					this.comboSchemaFileNames.Insert(0, txtArea.TextAreaControl.FileName);
				} 
				else 
				{
					this.comboSchema.Items.Add(txtArea.TitleToShow);
					this.comboSchemaFileNames.Add(txtArea.TextAreaControl.FileName);

				}
				
			}
		}
		
		// -------------------------------------------------------------------------
		/// <summary>
		/// 'Rozbalenie' combo-boxu na vyber DTD suboru
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		private void DropDown_comboDTD(object sender, System.EventArgs e)
		{
			this.externalDTDFileName = null;
			this.comboDTD.Items.Clear();
			this.comboDTDFileNames.Clear();
			this.labelDTD.Text = "[internal]";
			FileInfo fileInfo;
			foreach (TextAreaTabPage txtArea in this.MainForm.TabPages) 
			{
				if (txtArea.IsNewFile == true) 
				{
					continue;
				}

				fileInfo = new FileInfo(txtArea.TitleToShow);
			
				if (fileInfo.Extension.ToLower() == ".dtd") 
				{
					this.comboDTD.Items.Insert(0, txtArea.TitleToShow);
					this.comboDTDFileNames.Insert(0, txtArea.TextAreaControl.FileName);
				} 
				else 
				{
					this.comboDTD.Items.Add(txtArea.TitleToShow);
					this.comboDTDFileNames.Add(txtArea.TextAreaControl.FileName);
				}
				
			}
		}

		// -------------------------------------------------------------------------
		/// <summary>
		/// Zmenilo sa zaskrtnutie niektoreho radiobuttonu - POZOR vyvolava sa pri jednom
		/// zaskrtnuti dva-krat.
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		private void CheckedChanged_radioButtons(object sender, System.EventArgs e)
		{
			this.labelSchema.Enabled = this.buttonSchemaLoad.Enabled =
		 		this.comboSchema.Enabled = this.radioButtonSchema.Checked;
			
			this.labelDTD.Enabled = this.buttonDTDLoad.Enabled =
				this.comboDTD.Enabled = this.buttonEmbeddedDTD.Enabled = this.radioButtonDTD.Checked;
		}
		

	} // public class XMLValidatingPanel : ...
} // namespace XML_editor.DockingPanels