ConfigFile.cs :  » SQL-Clients » Database-Commander » YariSoft » Utils » C# / CSharp Open Source

using System;
using System.IO;
using System.Windows.Forms;
using System.Runtime.Serialization.Formatters.Soap;

namespace YariSoft.Utils{
  public class ConfigFile
  {
    #region Local variables
    private string _fileName    = "";
    protected object _configObject  = null;
    #endregion

    #region Properties
    public object ConfigObject
    {
      get{ return _configObject; }
      set{ this._configObject = value; }
    }

    public string FileName
    {
      get{ return this._fileName; }
      set{ this._fileName = value; }
    }
    #endregion

    #region Constructor/Destructor
    public ConfigFile()
    {
    }
    #endregion

    #region Public functions
    public static bool SaveToFile( ref string FileName, object ObjectToSave, bool ShowDialog )
    {
      bool status = false;
      try{
        YariSoft.Utils.ConfigFile info = new YariSoft.Utils.ConfigFile();
        info.ConfigObject = ObjectToSave;
        info.FileName = FileName;
        if( ShowDialog ){
          status = info.SaveAs();
          FileName = info.FileName;
        } else {
          status = info.Save();
        }
      }catch( Exception Exp ){
        YariSoft.Utils.YMessages.Show( Exp.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error );
        return false;
      }
      return status;
    }

    public static object LoadFromFile( ref string FileName, bool ShowDialog )
    {
      object result = null;
      try{
        YariSoft.Utils.ConfigFile info = new YariSoft.Utils.ConfigFile();
        info.FileName = FileName;
        bool status;
        if( ShowDialog ){
          status = info.OpenAs();
        }else{
          status = info.Open();
        }
        if( status ){
          result = info.ConfigObject;
          FileName = info.FileName;
        }
      }catch( Exception Exp ){
        YariSoft.Utils.YMessages.Show( Exp.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error );
        return null;
      }
      return result;
    }


    virtual public bool SaveAs ()
    {
      SaveFileDialog Dialog = new SaveFileDialog();
      
      bool status    = false;
      Dialog.FileName = this._fileName;

      if( Dialog.ShowDialog() == DialogResult.OK ){
        this._fileName = Dialog.FileName;
        status = this.Save();
      }

      Dialog.Dispose();
      return status;
    }

    virtual public bool Save ()
    {
      if( this._configObject == null ){
        YariSoft.Utils.YMessages.Show( "Object for save operation was not initialized!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error );
        return false;
      }
      if( this._fileName == "" ){
        return this.SaveAs();  
      }
      Stream stream = null;
      try {
        stream = (Stream)File.Open( this._fileName, FileMode.Create, FileAccess.Write );
        SoapFormatter formatter = new SoapFormatter();
        formatter.Serialize( stream, this._configObject );
        stream.Close();
      }catch( Exception Exp ){
        YariSoft.Utils.YMessages.Show( Exp.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error );
        if( stream != null ){
          stream.Close();
        }
        return false;
      }
      return true;
    }

    virtual public bool OpenAs()
    {
      return this.OpenAs("");
    }

    virtual public bool OpenAs( string FileExtFilter )
    {
      OpenFileDialog Dialog = new OpenFileDialog();
      if( FileExtFilter != "" ){
        Dialog.Filter = FileExtFilter;
      }
      bool status = false;

      if( Dialog.ShowDialog() == DialogResult.OK ){
        this._fileName = Dialog.FileName;
        status = this.Open();
      }

      Dialog.Dispose();
      return status;
    }

    virtual public bool Open()
    {
      if( this._fileName == "" ){
        return false;
      }

      FileInfo info = new FileInfo( this._fileName );
      if( ! info.Exists ){
        return false;
      }

      Stream stream = null;
      try{
        stream = (Stream)File.Open( this._fileName, FileMode.Open, FileAccess.Read );
        SoapFormatter formatter = new SoapFormatter ();
        this._configObject = formatter.Deserialize( stream );
        stream.Close();
      }catch( Exception Exp ){
        YariSoft.Utils.YMessages.Show( Exp.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error );
        if( stream != null ){
          stream.Close();
        }
        return false;
      }

      return true;
    }
    #endregion
  }
}