DataNavigator.IsValid Property

This property can be used to query the current row to see if it is valid

Definition

Namespace: EWSoftware.ListControls
Assembly: EWSoftware.ListControls (in EWSoftware.ListControls.dll) Version: 2024.12.18.0+3a863295c73252b22e8ab6862ed6bdc57bcbd0fc

C#View SourceRequest Example
public bool IsValid { get; }

VBView SourceRequest Example
Public ReadOnly Property IsValid As Boolean
	Get

C++View SourceRequest Example
public:
property bool IsValid {
	bool get ();
}

F#View SourceRequest Example
member IsValid : bool with get

Property Value

Boolean
Returns true if it is valid or there are no items, false if it is not

Remarks

This is useful in situations where the validating events are fired after certain other events (i.e. tree view and data grid item selection events). This raises the OnValidating(CancelEventArgs) and OnValidated(EventArgs) events on itself.

Example

C#
// Prevent a change of the tree view node if the current row in the
// data navigator is not valid.
private void tree_BeforeSelect(object sender, TreeViewCancelEventArgs e)
{
    e.Cancel = !dataNav.IsValid;
}

VB
' Prevent a change of the tree view node if the current row in the
' data navigator is not valid.
Private Sub tree_BeforeSelect(sender As Object, e As TreeViewCancelEventArgs) _
  Handles tree.BeforeSelect
    e.Cancel = Not dataNav.IsValid
End Sub

C++

No code example is currently available or this language may not be supported.

F#

No code example is currently available or this language may not be supported.

DataNavigator.IsValid Property

Definition

Property Value

Remarks

Example

See Also

Reference