BaseCheckedListBoxControl.GetItemEnabled Event
Enables you to disable specific items, in bound mode.
Namespace: DevExpress.XtraEditors
Assembly: DevExpress.XtraEditors.v24.2.dll
NuGet Package: DevExpress.Win.Navigation
#Declaration
#Event Data
The GetItemEnabled event's data class is DevExpress.XtraEditors.Controls.GetItemEnabledEventArgs.
#Remarks
In bound mode, a list box control is bound to a data source via the BaseListBoxControl.DataSource property. To disable specific items in this mode, handle the GetItemEnabled event.
To disable items in unbound mode, use the CheckedListBoxItem.Enabled property of the items.
#Example
The following example shows how to disable specific items in a checked list box control via the BaseCheckedListBoxControl.GetItemEnabled
event.
Assume that a CheckedListBoxControl is bound to a BindingSource object containinig information on products. The data source contains a ProductName and Discontinued fields. The values of the ProductName field are displayed in the control. The values of the Discontinued field are used to decide whether a corresponding check item should be disabled.
The result is displayed below:
using DevExpress.XtraEditors;
using DevExpress.XtraEditors.Controls;
// Assign a data source to the checked list box.
checkedListBoxControl1.DataSource = productsBindingSource;
checkedListBoxControl1.DisplayMember = "ProductName";
// Disable the items that have the Discontinued field set to true
private void checkedListBoxControl1_GetItemEnabled(object sender, GetItemEnabledEventArgs e) {
CheckedListBoxControl control = sender as CheckedListBoxControl;
bool isDiscontinued = (bool)((control.DataSource as BindingSource)[e.Index] as
DataRowView)["Discontinued"];
if (isDiscontinued)
e.Enabled = false;
}