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ShowFormEventArgs Class

Serves as the base for classes which provide data for the events which occur before the RichEditControl dialogs are shown.

Namespace: DevExpress.XtraRichEdit

Assembly: DevExpress.XtraRichEdit.v23.2.dll

NuGet Packages: DevExpress.Win.PivotGrid, DevExpress.Win.RichEdit, DevExpress.Win.TreeMap


public class ShowFormEventArgs :


Events which use the ShowFormEventArgs class descendants occur before different RichEditControl dialogs are invoked. The ShowFormEventArgs class introduces the ShowFormEventArgs.DialogResult property, that specifies the return value of a dialog, the ShowFormEventArgs.Handled property that specifies whether an event was handled and the ShowFormEventArgs.Parent property that specifies a parent of the form being shown.


This example demonstrates how handle the RichEditControl.SearchFormShowing event to replace the standard Find and Replace dialog with a custom dialog.

private void richEditControl1_SearchFormShowing(object sender, SearchFormShowingEventArgs e)
    string curWord = richEditControl.Document.GetText(richEditControl.Document.Selection);
    using (MySearchTextForm form = new MySearchTextForm(e.ControllerParameters, curWord))
        e.DialogResult = form.ShowDialog();
        e.Handled = true;
using System.Drawing;
using DevExpress.XtraRichEdit.Forms;

namespace CustomDialogs
    public partial class MySearchTextForm : SearchTextForm
        public MySearchTextForm(SearchFormControllerParameters controllerParameters, string searchWord)
            : base(controllerParameters)
            lblFndDirection.Location = new Point (lblFndDirection.Location.X - 10, lblFndDirection.Location.Y);
            lblFndDirection.Text = "Direction:";
            cbFndSearchString.Text = searchWord;
            chbFndRegex.Enabled = false;
See Also