lserp_cs_6.0/插件库/Lskj.Control/FrmTreePicture.cs

using DevExpress.XtraTreeList.Columns;
using Lskj.Business;
using Lskj.Control.Model;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace Lskj.Control
{
    public partial class FrmTreePicture : BaseForm
    {
        // 1. 将 GridColumn 替换为 TreeListColumn
        public List<TreeListColumn> PicUrlColumns;
        public DataRow FocusedRow;  // 保持不变（仍用于存储节点绑定的数据行）
        public TreeListColumn FocusedColumn;  // 聚焦列改为 TreeListColumn
        public Image Picture
        {
            get
            {
                return pictureEdit.Image;
            }
            set
            {
                pictureEdit.Image = value;
            }
        }

        public FrmTreePicture()
        {
            InitializeComponent();
            pictureEdit.Properties.ShowMenu = false;
            this.lbLeft.Click += OnBtnLeftClick;
            this.lbRight.Click += OnBtnRightClick;
        }

        // 2. 右侧按钮点击事件（适配 TreeListColumn）
        private void OnBtnRightClick(object sender, EventArgs e)
        {
            int index = PicUrlColumns.IndexOf(FocusedColumn);
            if (index >= 0 && index + 1 <= PicUrlColumns.Count - 1)
            {
                FocusedColumn = PicUrlColumns[index + 1];
                if (FocusedColumn.Tag != null && FocusedColumn.Tag is GridColumnModel columnModel)
                {
                    // 3. 读取图片URL（兼容 TreeList 节点绑定的 DataRow）
                    string imageUrl = FocusedRow.Table.Columns.Contains(columnModel.FieldName)
                        ? FocusedRow[columnModel.FieldName] + ""
                        : "";

                    if (string.IsNullOrEmpty(imageUrl))
                        return;

                    // 补全URL（保持原有逻辑）
                    if (!imageUrl.StartsWith("http"))
                    {
                        string oaUrl = SystemInfo.Instance.OAUrl.EndsWith("/")
                            ? SystemInfo.Instance.OAUrl
                            : $"{SystemInfo.Instance.OAUrl}/";
                        imageUrl = $"{oaUrl}{imageUrl}";
                    }

                    // 从列模型缓存中获取图片（保持原有逻辑）
                    if (columnModel.LabPicUrlImages.ContainsKey(imageUrl))
                    {
                        Image image = ((KeyValuePair<Image, Image>)columnModel.LabPicUrlImages[imageUrl]).Key;
                        Picture = image;
                    }
                }
            }
        }

        // 3. 左侧按钮点击事件（适配 TreeListColumn）
        private void OnBtnLeftClick(object sender, EventArgs e)
        {
            int index = PicUrlColumns.IndexOf(FocusedColumn);
            if (index >= 0 && index - 1 >= 0)
            {
                FocusedColumn = PicUrlColumns[index - 1];
                if (FocusedColumn.Tag != null && FocusedColumn.Tag is GridColumnModel columnModel)
                {
                    // 读取图片URL（同右侧逻辑，兼容 TreeList 数据行）
                    string imageUrl = FocusedRow.Table.Columns.Contains(columnModel.FieldName)
                        ? FocusedRow[columnModel.FieldName] + ""
                        : "";

                    if (string.IsNullOrEmpty(imageUrl))
                        return;

                    // 补全URL（保持原有逻辑）
                    if (!imageUrl.StartsWith("http"))
                    {
                        string oaUrl = SystemInfo.Instance.OAUrl.EndsWith("/")
                            ? SystemInfo.Instance.OAUrl
                            : $"{SystemInfo.Instance.OAUrl}/";
                        imageUrl = $"{oaUrl}{imageUrl}";
                    }

                    // 从列模型缓存中获取图片（保持原有逻辑）
                    if (columnModel.LabPicUrlImages.ContainsKey(imageUrl))
                    {
                        Image image = ((KeyValuePair<Image, Image>)columnModel.LabPicUrlImages[imageUrl]).Key;
                        Picture = image;
                    }
                }
            }
        }
    }
}