private void NextButton_Click(object sender, RoutedEventArgs e)
{
try
{
if (FCB.IorO() == IOState.IO)
{
FCB.updateRecCancel();
}
//FCB.seekRec(1, 1);
//CurrentSector++;
BackButton.IsEnabled = true;
if (GoToIntegerUpDown.Value >= FCB.GetFileDescription().EofRecNr)
{
NextButton.IsEnabled = false;
}
GoToIntegerUpDown.Value++;
GoTo();
}
catch (Exception exp)
{
ErrorHandling.ShowError(exp.Message);
NextButton.IsEnabled = false;
}
}
private void BackButton_Click(object sender, RoutedEventArgs e)
{
try
{
if (FCB.IorO() == IOState.IO)
{
FCB.updateRecCancel();
}
//FCB.seekRec(1, -1);
//CurrentSector--;
GoToIntegerUpDown.Value--;
NextButton.IsEnabled = true;
if (GoToIntegerUpDown.Value <= 0)
{
GoToIntegerUpDown.Value = 0;
BackButton.IsEnabled = false;
}
GoTo();
}
catch (Exception exp)
{
ErrorHandling.ShowError(exp.Message);
BackButton.IsEnabled = false;
}
}
private void ReadRecord()
{
((IRecordUserControl)RecordDetailsStackPanel.Children[0]).ClearFields();
if (GoToIntegerUpDown.Value != FCB.GetFileDescription().EofRecNr)
{
switch (FCB.IorO())
{
case IOState.IO:
if (IsStore())
{
Store temp = new Store();
FCB.readRec(temp, 1);
((IRecordUserControl)RecordDetailsStackPanel.Children[0]).Record = temp;
}
else if (IsProduct())
{
Product temp = new Product();
FCB.readRec(temp, 1);
((IRecordUserControl)RecordDetailsStackPanel.Children[0]).Record = temp;
}
else if (IsEmployee())
{
Employee temp = new Employee();
FCB.readRec(temp, 1);
((IRecordUserControl)RecordDetailsStackPanel.Children[0]).Record = temp;
}
break;
case IOState.O:
if (IsStore())
{
Store temp = new Store();
FCB.readRec(temp);
((IRecordUserControl)RecordDetailsStackPanel.Children[0]).Record = temp;
}
else if (IsProduct())
{
Product temp = new Product();
FCB.readRec(temp);
((IRecordUserControl)RecordDetailsStackPanel.Children[0]).Record = temp;
}
else if (IsEmployee())
{
Employee temp = new Employee();
FCB.readRec(temp);
((IRecordUserControl)RecordDetailsStackPanel.Children[0]).Record = temp;
}
break;
default:
throw new Exception("Unknown format to read/write from file.");
}
}
}
private void FirstButton_Click(object sender, RoutedEventArgs e)
{
try
{
if (FCB.IorO() == IOState.IO)
{
FCB.updateRecCancel();
}
//InitData();
GoToIntegerUpDown.Value = 0;
GoTo();
}
catch (Exception exp)
{
ErrorHandling.ShowError(exp.Message);
}
}
private void LastButton_Click(object sender, RoutedEventArgs e)
{
try
{
if (FCB.IorO() == IOState.IO)
{
FCB.updateRecCancel();
}
//FCB.seekRec(0, (int)FCB.GetFileDescription().FileAddr - 4 + (int)FCB.GetFileDescription().EofRecNr - 1);
// FCB.seekRec(0, (int)FCB.GetFileDescription().EofRecNr - 1);
GoToIntegerUpDown.Value = (int)FCB.GetFileDescription().EofRecNr;
GoTo();
NextButton.IsEnabled = false;
BackButton.IsEnabled = true;
}
catch (Exception exp)
{
ErrorHandling.ShowError(exp.Message);
}
}
private void GoTo()
{
try
{
if (GoToIntegerUpDown.Value > MaxRecord)
{
GoToIntegerUpDown.Value = MaxRecord;
throw new Exception("GoTo value too high");
}
if (FCB.IorO() == IOState.IO)
{
FCB.updateRecCancel();
}
FCB.seekRec(0, (int)GoToIntegerUpDown.Value);
CurrentRecordNumber = GoToIntegerUpDown.Value;
//if (CurrentSector == FCB.GetFileDescription().EofRecNr)
NextButton.IsEnabled = false;
//else
//{
if (GoToIntegerUpDown.Value == 0)
{
BackButton.IsEnabled = false;
}
else
{
BackButton.IsEnabled = true;
}
NextButton.IsEnabled = true;
//}
ReadRecord();
}
catch (Exception exp)
{
ErrorHandling.ShowError(exp.Message);
}
}
private void InitAvailableButtons()
{
try
{
switch (FCB.IorO())
{
case IOState.IO:
SaveButton.IsEnabled = true;
CencelButton.IsEnabled = true;
break;
case IOState.O:
((IRecordUserControl)RecordDetailsStackPanel.Children[0]).DisableControls();
break;
case IOState.E:
AddButton.IsEnabled = true;
CencelButton.IsEnabled = true;
LastButton.IsEnabled = false;
BackButton.IsEnabled = false;
GoToButton.IsEnabled = false;
GoToIntegerUpDown.IsEnabled = false;
NextButton.IsEnabled = false;
FirstButton.IsEnabled = false;
break;
default:
throw new Exception("Unknown format to read/write from file.");
}
}
catch (Exception exp)
{
ErrorHandling.ShowError(exp.Message);
this.Close();
}
}