Hi,
It has been a while since I asked the question above, but thank you for your prompt reply. I am developing another program where I need another control for currency, but I need to be binded to a nullable decimal property. I've inherited from your RadMaskedEditBox control and was able to make it work, but I have 2 outstanding issues.
1. I used your suggestion above to handle Parse event of Binding object to handle null values. But is it possible to integrate this into my control so that I don't have to worry about handling this property each time I bind this control.
2. When user selects the whole text and presses delete, I would like for the Value to be set to 0. But it seems like $0.00 is always substituted there.
Please take a look at my code below and let me know what else I can do to handle 2 situations above.
usingSystem;usingSystem.Collections.Generic;usingSystem.ComponentModel;usingSystem.Globalization;usingSystem.Linq;usingSystem.Text;usingTelerik.WinControls.Analytics;usingTelerik.WinControls.UI;namespaceAllergyCanada.WinControls.UI{ publicclassMidexCurrencyEditBox : RadMaskedEditBox { publicMidexCurrencyEditBox() : base() { MaskType = Telerik.WinControls.UI.MaskType.Numeric; Mask = "C2"; TextAlign = System.Windows.Forms.HorizontalAlignment.Right; MidexCurrencyEditBox radMaskedEditBox = this; base.ValueChanged += newEventHandler(radMaskedEditBox.OnCurrencyValueChanged); MidexCurrencyEditBox radMaskedEditBox1 = this; base.ValueChanging += newCancelEventHandler(radMaskedEditBox1.OnCurrencyValueChanging); } protectedoverridevoidDispose(booldisposing) { MidexCurrencyEditBox radMaskedEditBox = this; base.ValueChanged -= newEventHandler(radMaskedEditBox.OnCurrencyValueChanged); MidexCurrencyEditBox radMaskedEditBox1 = this; base.ValueChanging -= newCancelEventHandler(radMaskedEditBox1.OnCurrencyValueChanging); base.Dispose(disposing); } [Bindable(true)] [Browsable(true)] [Category("Behavior")] [DefaultValue("")] [Description("Gets or sets the value associated to the mask edit box")] [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)] publicdecimal? CurrencyValue { get { if(base.MaskedEditBoxElement.Value == null) returnnull; returndecimal.Parse(base.MaskedEditBoxElement.Value.ToString(), NumberStyles.Currency); } set { base.MaskedEditBoxElement.Value = value; OnNotifyPropertyChanged("CurrencyValue"); } } /// <summary> /// Occurs when the editing value has been changed /// </summary> [Category("Action")] [Description("Occurs when the editing currency value has been changed")] publiceventEventHandler CurrencyValueChanged; /// <summary> /// Occurs when the editing value is changing. /// </summary> [Category("Action")] [Description(" Occurs when the editing currency value is changing.")] publiceventCancelEventHandler CurrencyValueChanging; protectedvirtualvoidOnCurrencyValueChanged(objectsender, EventArgs e) { this.CurrencyValueChanged?.Invoke(this, e); this.OnNotifyPropertyChanged("CurrencyValue"); ControlTraceMonitor.TrackAtomicFeature(this, "CurrencyValueChanged", this.Text); } /// <summary> /// Fires the ValueChanging event /// </summary> /// <param name="sender"></param> /// <param name="e"></param> protectedvirtualvoidOnCurrencyValueChanging(objectsender, CancelEventArgs e) { this.CurrencyValueChanging?.Invoke(this, e); } }}
