private void StartButton_Click(object sender, EventArgs e)
{
string selectedItemText = SubsamplingModeComboBox.GetItemText(SubsamplingModeComboBox.SelectedItem);
if (theDealer.IsBusy)
{
theDealer.CancelAsync();
StartButton.Text = "Cancelling...";
}
else
{
if (selectedItemText == "Randomized Subsampling")
{
LaunchRandomSubsampler();
}
else if (selectedItemText == "Sample by Range")
{
LaunchTargetedSubsampler();
}
else if (selectedItemText == "Split File into Chunks")
{
LaunchSplitIntoChunks();
}
}
}
private void EnableControls()
{
EncodingComboBox.Enabled = true;
DelimiterTextBox.Enabled = true;
QuoteTextBox.Enabled = true;
ContainsHeaderCheckbox.Enabled = true;
OpenFileButton.Enabled = true;
NumberOfFilesToCreateTextBox.Enabled = true;
NumberOfSamplesPerFileTextBox.Enabled = true;
ColumnsToRetainCheckedListBox.Enabled = true;
SubsamplingModeComboBox.Enabled = true;
if (SubsamplingModeComboBox.GetItemText(SubsamplingModeComboBox.SelectedItem) == "Randomized Subsampling")
{
AllowReplacementsCheckbox.Enabled = true;
RandomSeedTextBox.Enabled = true;
}
else if (SubsamplingModeComboBox.GetItemText(SubsamplingModeComboBox.SelectedItem) == "Sample by Range")
{
AllowReplacementsCheckbox.Enabled = false;
RandomSeedTextBox.Enabled = false;
}
else if (SubsamplingModeComboBox.GetItemText(SubsamplingModeComboBox.SelectedItem) == "Split File into Chunks")
{
AllowReplacementsCheckbox.Enabled = false;
RandomSeedTextBox.Enabled = false;
}
}
private void NumRowsPerSampleTextbox_Enter(object sender, EventArgs e)
{
string selectedItemText = SubsamplingModeComboBox.GetItemText(SubsamplingModeComboBox.SelectedItem);
if (selectedItemText == "Split File into Chunks")
{
NumberOfFilesToCreateTextBox.Text = "";
}
}
private void SubsamplingModeComboBox_SelectedIndexChanged(object sender, EventArgs e)
{
string selectedItemText = SubsamplingModeComboBox.GetItemText(SubsamplingModeComboBox.SelectedItem);
if (selectedItemText == "Randomized Subsampling")
{
labelNumberOfFilesToCreate.Text = "# of Subsample Files to Create:";
labelNumberOfSamplesPerFile.Text = "# of Rows per File:";
NumberOfFilesToCreateTextBox.Text = "1";
NumberOfSamplesPerFileTextBox.Text = "100000";
AllowReplacementsCheckbox.Enabled = true;
RandomSeedTextBox.Enabled = true;
}
else if (selectedItemText == "Sample by Range")
{
labelNumberOfFilesToCreate.Text = "Start Sampling at Row #:";
labelNumberOfSamplesPerFile.Text = "Stop Sampling at Row #:";
NumberOfFilesToCreateTextBox.Text = "1";
if (!String.IsNullOrEmpty(InputFileTextbox.Text))
{
NumberOfSamplesPerFileTextBox.Text = hoju.GetRowCount().ToString();
}
else
{
NumberOfSamplesPerFileTextBox.Text = "10000";
}
AllowReplacementsCheckbox.Enabled = false;
RandomSeedTextBox.Enabled = false;
}
else if (selectedItemText == "Split File into Chunks")
{
labelNumberOfFilesToCreate.Text = "Split into N files:";
labelNumberOfSamplesPerFile.Text = "Split with N rows per file:";
NumberOfFilesToCreateTextBox.Text = "5";
NumberOfSamplesPerFileTextBox.Text = "";
AllowReplacementsCheckbox.Enabled = false;
RandomSeedTextBox.Enabled = false;
}
}
