private void ExecuteClick(object sender)
{
ListBox lb = sender as ListBox;
if (lb != null)
{
ValidationSummaryItem vsi = lb.SelectedItem as ValidationSummaryItem;
if (vsi != null && this.FocusControlsOnClick)
{
int idx;
// Ensure the currently selected item source is valid
if (vsi.Sources.Count == 0)
{
// Clear the current ESI source if the ESI has none, such as when the ESI has changed
this._currentValidationSummaryItemSource = null;
}
else
{
// If the current ESI source is not part of the current set, select the first one by default.
idx = FindMatchingErrorSource(vsi.Sources, this._currentValidationSummaryItemSource);
if (idx < 0)
{
this._currentValidationSummaryItemSource = vsi.Sources[0];
}
}
// Raise the event
FocusingInvalidControlEventArgs e = new FocusingInvalidControlEventArgs(vsi, this._currentValidationSummaryItemSource);
this.OnFocusingInvalidControl(e);
// Raise the AutomationPeer event
ValidationSummaryAutomationPeer peer = ValidationSummaryAutomationPeer.FromElement(this) as ValidationSummaryAutomationPeer;
if (peer != null && AutomationPeer.ListenerExists(AutomationEvents.InvokePatternOnInvoked))
{
peer.RaiseAutomationEvent(AutomationEvents.InvokePatternOnInvoked);
}
// Focus the target, which will usually be the current ESI source or the overwritten one
if (!e.Handled && e.Target != null && e.Target.Control != null)
{
e.Target.Control.Focus();
}
// Update currently selected item, but only if there are multiple ESI sources.
if (vsi.Sources.Count > 0)
{
idx = FindMatchingErrorSource(vsi.Sources, e.Target);
idx = idx < 0 ? 0 : ++idx % vsi.Sources.Count;
this._currentValidationSummaryItemSource = vsi.Sources[idx];
}
}
}
}
/// <summary>
/// Initializes a new instance of the ValidationSummaryItem class.
/// </summary>
/// <param name="message">The error message.</param>
/// <param name="messageHeader">The header/prefix of the item, such as the property name.</param>
/// <param name="itemType">The type of error, such as Property or Entity level.</param>
/// <param name="source">The source of the error message, including the originating control and/or property name.</param>
/// <param name="context">Context from which the error occurred. This general property can be used as a container to keep track of the entity, for instance.</param>
public ValidationSummaryItem(string message, string messageHeader, ValidationSummaryItemType itemType, ValidationSummaryItemSource source, object context)
{
this.MessageHeader = messageHeader;
this.Message = message;
this.ItemType = itemType;
this.Context = context;
this.Sources = new ObservableCollection<ValidationSummaryItemSource>();
if (source != null)
{
this.Sources.Add(source);
}
}
/// <summary>
/// Initializes a new instance of the ValidationSummaryItem class.
/// </summary>
/// <param name="message">The error message.</param>
/// <param name="messageHeader">The header/prefix of the item, such as the property name.</param>
/// <param name="itemType">The type of error, such as Property or Entity level.</param>
/// <param name="source">The source of the error message, including the originating control and/or property name.</param>
/// <param name="context">Context from which the error occurred. This general property can be used as a container to keep track of the entity, for instance.</param>
public ValidationSummaryItem(string message, string messageHeader, ValidationSummaryItemType itemType, ValidationSummaryItemSource source, object context)
{
this.MessageHeader = messageHeader;
this.Message = message;
this.ItemType = itemType;
this.Context = context;
this.Sources = new ObservableCollection <ValidationSummaryItemSource>();
if (source != null)
{
this.Sources.Add(source);
}
}
/// <summary>
/// Validates the current item.
/// </summary>
/// <param name="validateAllProperties">Whether or not to validate all properties.</param>
/// <returns>Whether or not the current item is valid.</returns>
private bool ValidateItem(bool validateAllProperties)
{
CancelEventArgs e = new CancelEventArgs();
this.OnValidatingItem(e);
if (e.Cancel)
{
return this.IsItemValid;
}
// Clear entity errors both from the ErrorSummary and the entity errors list.
this.ClearEntityErrors();
if (validateAllProperties)
{
// Check all input controls and validate them.
this.UpdateAllSources();
}
if (this._lastItem != null)
{
// Check the rest of the parameters on the entity object.
ValidationContext context = new ValidationContext(this._lastItem, null, null);
List<ValidationResult> validationResults = new List<ValidationResult>();
bool valid = Validator.TryValidateObject(this._lastItem, context, validationResults, validateAllProperties);
if (!valid)
{
Debug.Assert(validationResults.Count > 0, "Entity is not valid, but there are no errors.");
foreach (ValidationResult result in validationResults)
{
string errorMessage = result.ErrorMessage;
ValidationSummaryItem newError = new ValidationSummaryItem(errorMessage, null, ValidationSummaryItemType.ObjectError, null, null);
// Indicate that this DataForm is the owner of the error. When clearing errors, only errors from this DataForm should be cleared.
newError.Context = this;
foreach (string property in result.MemberNames)
{
// Find a control matching this property name.
Control c = null;
if (this._templateBindingInfos != null)
{
foreach (DataFormBindingInfo bindingInfo in this._templateBindingInfos)
{
if (bindingInfo.BindingExpression != null && bindingInfo.BindingExpression.ParentBinding != null &&
bindingInfo.BindingExpression.ParentBinding.Path.Path == property)
{
c = bindingInfo.Element as Control;
break;
}
}
}
ValidationSummaryItemSource errorSource = new ValidationSummaryItemSource(property, c);
newError.Sources.Add(errorSource);
}
// Only add the errors that weren't picked up from the field-level validation.
if (this.EntityErrorShouldBeAdded(newError))
{
this._entityLevelErrors.Add(newError);
if (this.ValidationSummary != null)
{
Debug.Assert(this.ValidationSummary.Errors != null, "ValidationSummary.Errors should never be null.");
if (!this.ValidationSummary.Errors.Contains(newError))
{
this.ValidationSummary.Errors.Add(newError);
}
}
}
}
this.SetIsItemValid();
return false;
}
validationResults.Clear();
}
this.SetIsItemValid();
return this.IsItemValid;
}
private static int FindMatchingErrorSource(IList <ValidationSummaryItemSource> sources, ValidationSummaryItemSource sourceToFind)
{
if (sources != null)
{
for (int i = 0; i < sources.Count; i++)
{
if (sources[i].Equals(sourceToFind))
{
return(i);
}
}
}
return(-1);
}
private void ExecuteClick(object sender)
{
ListBox lb = sender as ListBox;
if (lb != null)
{
ValidationSummaryItem vsi = lb.SelectedItem as ValidationSummaryItem;
if (vsi != null && this.FocusControlsOnClick)
{
int idx;
// Ensure the currently selected item source is valid
if (vsi.Sources.Count == 0)
{
// Clear the current ESI source if the ESI has none, such as when the ESI has changed
this._currentValidationSummaryItemSource = null;
}
else
{
// If the current ESI source is not part of the current set, select the first one by default.
idx = FindMatchingErrorSource(vsi.Sources, this._currentValidationSummaryItemSource);
if (idx < 0)
{
this._currentValidationSummaryItemSource = vsi.Sources[0];
}
}
// Raise the event
FocusingInvalidControlEventArgs e = new FocusingInvalidControlEventArgs(vsi, this._currentValidationSummaryItemSource);
this.OnFocusingInvalidControl(e);
// Raise the AutomationPeer event
ValidationSummaryAutomationPeer peer = ValidationSummaryAutomationPeer.FromElement(this) as ValidationSummaryAutomationPeer;
if (peer != null && AutomationPeer.ListenerExists(AutomationEvents.InvokePatternOnInvoked))
{
peer.RaiseAutomationEvent(AutomationEvents.InvokePatternOnInvoked);
}
// Focus the target, which will usually be the current ESI source or the overwritten one
if (!e.Handled && e.Target != null && e.Target.Control != null)
{
e.Target.Control.Focus();
}
// Update currently selected item, but only if there are multiple ESI sources.
if (vsi.Sources.Count > 0)
{
idx = FindMatchingErrorSource(vsi.Sources, e.Target);
idx = idx < 0 ? 0 : ++idx % vsi.Sources.Count;
this._currentValidationSummaryItemSource = vsi.Sources[idx];
}
}
}
}
private static int FindMatchingErrorSource(IList<ValidationSummaryItemSource> sources, ValidationSummaryItemSource sourceToFind)
{
if (sources != null)
{
for (int i = 0; i < sources.Count; i++)
{
if (sources[i].Equals(sourceToFind))
{
return i;
}
}
}
return -1;
}
