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ImageSliderHelper.cs
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ImageSliderHelper.cs
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using DevExpress.Utils;
using DevExpress.XtraEditors.CustomEditor;
using DevExpress.XtraGrid;
using DevExpress.XtraGrid.Views.Grid;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace WindowsFormsApplication202 {
static public class ImageSliderHelper {
static int currentImageIndex = 0;
static ImageCollection currentCollection = null;
static GridView view = null;
static ImageCollection[] images = null;
public static void BindImageSlider(GridControl grid, string columnFieldName, params ImageCollection[] rowImages) {
images = rowImages;
RepositoryItemAnyControl repository = new RepositoryItemAnyControl();
grid.RepositoryItems.Add(repository);
MyImageSlider slider = new MyImageSlider();
view = grid.MainView as GridView;
repository.Control = slider;
view.Columns["Image"].ColumnEdit = repository;
view.Columns["Description"].OptionsColumn.AllowEdit = false;
view.RowHeight = slider.Size.Height;
view.ShownEditor += view_ShownEditor;
}
private static void view_ShownEditor(object sender, EventArgs e) {
GridView view = sender as GridView;
AnyControlEdit edit = view.ActiveEditor as AnyControlEdit;
if (edit != null) {
currentCollection = images[view.FocusedRowHandle];
MyImageSlider slider = edit.Properties.Control as MyImageSlider;
slider.VirtualMode = true;
slider.GetImage += slider_GetImage;
slider.CanGetNextPrevImage += slider_CanGetNextPrevImage;
slider.UpdateImage();
currentImageIndex = 0;
}
}
static void slider_CanGetNextPrevImage(object sender, DevExpress.XtraEditors.Controls.CanGetNextPrevImageEventArgs e) {
if (e.IsNext) e.CanGetImage = (currentImageIndex < currentCollection.Images.Count - 1);
else e.CanGetImage = (currentImageIndex > 0);
}
static void slider_GetImage(object sender, DevExpress.XtraEditors.Controls.GetImageEventArgs e) {
if (currentCollection != null) {
if (e.IsStartUp) {
e.Image = currentCollection.Images[0];
return;
}
if (e.IsNext) {
e.Image = currentCollection.Images[currentImageIndex + 1];
if (e.CurrentImageUpdated) ++currentImageIndex;
}
else if (e.IsPrev) {
e.Image = currentCollection.Images[currentImageIndex - 1];
if (e.CurrentImageUpdated) --currentImageIndex;
}
}
}
}
}