///<summary> ///Performs additional custom processes when removing an element from the <see cref="T:System.Collections.CollectionBase"></see> instance. ///</summary> /// ///<param name="value">The value of the element to remove from index.</param> ///<param name="index">The zero-based index at which value can be found.</param> protected override void OnRemove(int index, object value) { GenericCancelEventArgs <T> e = new GenericCancelEventArgs <T>((T)value); if (Removing != null) { Removing(index, e); if (e.Cancel) { return; } } base.OnRemove(index, value); }
///<summary> ///Performs additional custom processes when clearing the contents of the <see cref="T:System.Collections.CollectionBase"></see> instance. ///</summary> /// protected override void OnClear() { GenericCancelEventArgs <GenericCollection <T> > e = new GenericCancelEventArgs <GenericCollection <T> >(this); if (Clearing != null) { Clearing(e); if (e.Cancel) { return; } } base.OnClear(); }
protected virtual void OnNextButtonClick(object sender, EventArgs e) { int num; if (DesignMode) { CurrentStepIndex++; return; } else { num = 0; if (!(WizardSteps[CurrentStepIndex] is StartStep)) { if ((WizardSteps[CurrentStepIndex] is FinishStep)) { num = -1; } } else { num = 1; } } if (NextButtonClick == null) { bool noFinish = false; int num2 = 0; if (!(WizardSteps[CurrentStepIndex + 1] is StartStep)) { if (!(WizardSteps[CurrentStepIndex + 1] is FinishStep)) { noFinish = true; } else { num2 = -1; } } else { num2 = 1; } if (((indexer + num) + num2) >= 0) { if ((((indexer + num) + num2) != 0) || !noFinish) { WizardSteps[CurrentStepIndex + 1].BackStepIndex = CurrentStepIndex; CurrentStepIndex++; indexer += num; } } else { throw new InvalidOperationException("The steps must be well formed, so there cannot be an IntermediateStep without enclosing."); } } else { GenericCancelEventArgs <WizardControl> args = new GenericCancelEventArgs <WizardControl>(this); NextButtonClick(this, args); if (args.Cancel) { return; } int nextStep = GetNextStep(); if (nextStep != -1) { WizardSteps[nextStep].BackStepIndex = CurrentStepIndex; CurrentStepIndex = nextStep; indexer += num; return; } WizardSteps[CurrentStepIndex + 1].BackStepIndex = CurrentStepIndex; CurrentStepIndex++; indexer += num; return; } }