private void DeleteEnvVar(ListBox lb, DataGridView dgv)
{
var snapshot = DgvSnapshot(lb, dgv);
var variables = DgvVariables(lb, dgv);
if (snapshot != null && variables != null && variables.Count > 0)
{
if (MessageBox.Show("Are you sure to remove these variables?", "Confirm Deletion", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
if (snapshot.Name == "[Current]")
{
try
{
EnvironmentVariableManager.Begin(snapshot.Target);
foreach (var variable in variables)
{
EnvironmentVariableManager.DeleteEnvironmentVariable(variable.Name, snapshot.Target);
snapshot.Variables.Remove(variable);
}
EnvironmentVariableManager.End(snapshot.Target);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
snapshotManager.SaveSnapshot(ref snapshot);
FillEnvironmentVariables(dgv, snapshot);
}
}
}
private void ActivateSnapshot(ListBox lb)
{
int index = lb.SelectedIndex;
if (index > 0)
{
EnvironmentVariableTarget target = (EnvironmentVariableTarget)lb.Tag;
EnvironmentSnapshot snapshot = snapshotManager.GetSnapshot(index, target);
EnvironmentSnapshot current = snapshotManager.GetSnapshot(0, target);
if (snapshot != null)
{
EnvironmentVariableManager.Begin(snapshot.Target);
foreach (var variable in current.Variables)
{
EnvironmentVariableManager.DeleteEnvironmentVariable(variable.Name, target);
}
current.Variables.Clear();
foreach (var variable in snapshot.Variables)
{
EnvironmentVariableManager.SetEnvironmentVariable(variable.Name, variable.Value, target);
current.Variables.Add(variable.Clone() as EnvironmentVariable);
}
EnvironmentVariableManager.End(snapshot.Target);
lb.SelectedIndex = 0;
}
}
}
private void SaveEnvironmentVariable()
{
try
{
StringBuilder value = EnvironmentVariableValue();
if (variable.Name.Length != 0 && variable.Name != txtVariableName.Text)
{
if (snapshot.Name == "[Current]")
{
EnvironmentVariableManager.Begin(snapshot.Target);
EnvironmentVariableManager.DeleteEnvironmentVariable(variable.Name, snapshot.Target);
EnvironmentVariableManager.End(snapshot.Target);
}
}
if (snapshot.Name == "[Current]")
{
EnvironmentVariableManager.Begin(snapshot.Target);
EnvironmentVariableManager.SetEnvironmentVariable(txtVariableName.Text, value.ToString(), snapshot.Target);
EnvironmentVariableManager.End(snapshot.Target);
}
variable.Name = txtVariableName.Text;
variable.Value = value.ToString();
// Set initial program state
commandsList.Clear();
SetBtnState();
//this.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Validation", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
}
private void dgvSysVariables_UserDeletingRow(object sender, DataGridViewRowCancelEventArgs e)
{
if (snapshot == null)
{
snapshot = DgvSnapshot(lbSysVariables, dgvSysVariables);
if (snapshot.Name == "[Current]")
{
EnvironmentVariableManager.Begin(snapshot.Target);
}
}
var variable = snapshot.Variables[e.Row.Index];
if (snapshot.Name == "[Current]")
{
EnvironmentVariableManager.DeleteEnvironmentVariable(variable.Name, snapshot.Target);
}
snapshot.Variables.Remove(variable);
}