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GridLookUpEdit.AutoSuggestComplete Event

Fires after the GridLookUpEdit.AutoSuggest event is finished, and allows you to additionally customize the editor.

Namespace: DevExpress.XtraEditors

Assembly: DevExpress.XtraGrid.v24.1.dll

NuGet Packages: DevExpress.Win.Grid, DevExpress.Win.Navigation


public event LookUpEditAutoSuggestCompleteEventHandler AutoSuggestComplete

Event Data

The AutoSuggestComplete event's data class is DevExpress.XtraEditors.Controls.LookUpEditAutoSuggestCompleteEventArgs.


The AutoSuggestComplete event fires if the RepositoryItemLookUpEditBase.TextEditStyle property is set to Standard.

The code below focuses a suggestion in a drop-down list if this is the only suggestion found. As a result, a user can press Tab or Enter to select this suggestion, without having to press the Down arrow first.

private void AutoSuggestCompleteHandler(object sender, LookUpEditAutoSuggestCompleteEventArgs e) {
    var edit = (GridLookUpEdit)sender;
    if (e.QuerySuggestions.Result.Count == 1) {
        var popup = edit.GetPopupEditForm();
        popup.SelectedIndex = 1;

The following sample dynamically changes the drop-down panel height, depending on how many suggestions it shows.

void LookUpEdit1_AutoSuggestComplete(object sender, DevExpress.XtraEditors.Controls.LookUpEditAutoSuggestCompleteEventArgs e) {
    var form = ((GridLookUpEdit)sender).GetPopupEditForm();
    int recordCount = e.QuerySuggestions.Result.Count;
    if(recordCount < "10") {
    form.Size = new System.Drawing.Size(form.Width, recordCount*25);
See Also