Devexpress treelist两张表父子节点设置、筛选、分页、排序、页面跳转demo

效果图

网上查了很多例子自己结合和修改了一下。最下方的分页跳转是dev的datapager控件。控件的属性事件自己研究一下。

代码如下

 public partial class MMDefinitionQueryForm : Form
    {
        private IMMwDefinitionsCoBO immwDefinitionsCoBO_0;
        private IMMwDefVersCoBO immwDefVersCoBO_0;
        public MMDefinitionQueryForm()
        {
            this.InitializeComponent();
            this.immwDefinitionsCoBO_0 = ObjectContainer.BuildUp<IMMwDefinitionsCoBO>();
            this.immwDefVersCoBO_0 = ObjectContainer.BuildUp<IMMwDefVersCoBO>();
            Resultlist.OptionsBehavior.ReadOnly = true; //只读
            Resultlist.OptionsBehavior.Editable = false; //不可编辑
        }
        //页行数
        //public int pagesize = 1;
        //当前页
        public int pageIndex = 1;
        //总页数
        public int pageCount;
        //排序规则
        public string ordername = "DefID";
        public string order = "ASC";
        public int orderint = 0;
        public string DefID = null;//设备编号
        public string version = null;//物料版本
        public string DefPK = null;//设备识别码
        //public string EqpDefName;
        //分页及数据绑定
        public void BindPageGridList()
        {
            try
            {
                nvgtDataPager.Buttons.CustomButtons[0].Enabled = true;
                nvgtDataPager.Buttons.CustomButtons[1].Enabled = true;
                nvgtDataPager.Buttons.CustomButtons[2].Enabled = true;
                nvgtDataPager.Buttons.CustomButtons[3].Enabled = true;
                //分页获取数据列表
                DataTable dt = Getdata();
                if (pageIndex == 1 || pageIndex == 0)
                {
                    nvgtDataPager.Buttons.CustomButtons[0].Enabled = false;
                    nvgtDataPager.Buttons.CustomButtons[1].Enabled = false;
                }
                if (dt.Rows.Count == 0)
                {
                    pageIndex = 0;
                }
                //最后页时获取真实记录数
                if (pageCount == pageIndex)
                {
                    nvgtDataPager.Buttons.CustomButtons[2].Enabled = false;
                    nvgtDataPager.Buttons.CustomButtons[3].Enabled = false;
                }
                Bind(dt);
                //   nvgtDataPager.DataSource = dt;
                nvgtDataPager.TextStringFormat = string.Format("第 {0}页, 共 {1}页", pageIndex, pageCount);
            }
            catch (Exception ex)
            {
                ExceptionPolicy.HandleException(ex, ExceptionPolicy.BusinessLogicDefaultPolicy);
            }
        }
        // 按钮点击事件
        private void nvgtDataPager_ButtonClick(object sender, NavigatorButtonClickEventArgs e)
        {
            ShowEvent(e.Button);
        }
        // 分页事件处理
        void ShowEvent(NavigatorButtonBase button)
        {
            //string type = button.ButtonType.ToString();
            NavigatorCustomButton btn = (NavigatorCustomButton)button;
            string type = btn.Tag.ToString();
            if (type == "首页")
            {
                pageIndex = 1;
            }
            if (type == "下一页")
            {
                pageIndex++;
            }
            if (type == "末页")
            {
                pageIndex = pageCount;
            }
            if (type == "上一页")
            {
                pageIndex--;
            }
            //绑定分页控件和GridControl数据
            BindPageGridList();
        }
        //数据查询方法
        public DataTable Getdata()
        {
            string where = " DefName Like '%" + queryname.Text.Trim() + "%' and DefID Like '%" + querycode.Text.Trim() + "%'";
            int pagecount;
            DataTable dt = immwDefinitionsCoBO_0.ExecPaging(ordername, order, where, pageIndex, out pagecount, 5);//参数顺序:排序字段，排序方式，条件，页索引，总页数
            pageCount = pagecount;
            return dt;
        }
        //给treelist绑定数据，
        public void Bind(DataTable dt)
        {
            dt.DefaultView.Sort = ordername + " " + order;//可能无用
            dt = dt.DefaultView.ToTable();
            this.Resultlist.ClearNodes();
            if (dt.Rows.Count > 0)
            {
                for (int i = 0; i < dt.Rows.Count; i++)
                {
                    TreeListNode node = Resultlist.AppendNode("DefID", null);
                    node.SetValue(物料识别号, dt.Rows[i]["DefPK"]);
                    node.SetValue(物料编码, dt.Rows[i]["DefID"]);
                    node.SetValue(物料名称, dt.Rows[i]["DefName"]);
                    node.SetValue(物料大类, dt.Rows[i]["TypeCD"]);
                    node.SetValue(物料小类, dt.Rows[i]["ClassName"]);
                    node.SetValue(物料描述, dt.Rows[i]["Descript"]);
                    GetChildNode(node, dt.Rows[i]["DefID"].ToString());
                }
            }
        }
        //子节点绑定
        public void GetChildNode(TreeListNode node, string parent)
        {
            IList<MMwDefVersCo> ChildNode = immwDefVersCoBO_0.GetEntitiesByDef(parent);
            if (ChildNode.Count > 0)
            {
                ChildNode.ToList().ForEach(item =>
                {
                    TreeListNode nodelist = node.TreeList.AppendNode(null, node);
                    nodelist.SetValue(物料编码, item.VLabel);
                    nodelist.SetValue(物料名称, item.IsCurrent.Value ? "CURRENT" : string.Empty);
                }
                );
            }
        }
        private void querybutton_Click(object sender, EventArgs e)
        {
            pageIndex = 1;
            BindPageGridList();
        }
        private void pageindextxt_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar != '\b')//这是允许输入退格键 
            {
                int len = pageindextxt.Text.Length;
                if (len < 1 && e.KeyChar == '0')
                {
                    e.Handled = true;
                }
                else if ((e.KeyChar < '0') || (e.KeyChar > '9'))//这是允许输入0-9数字 
                {
                    e.Handled = true;
                }
            }
        }
        private void gotoindex_Click(object sender, EventArgs e)
        {
            if (pageCount > 0 && Convert.ToInt32(pageindextxt.Text) <= pageCount)
            {
                pageIndex = Convert.ToInt32(pageindextxt.Text);
                BindPageGridList();
            }
            else { SaMessageBox.ShowWarning("务必保证输入页码有效"); pageindextxt.Text = ""; }
        }
        // 排序与选中
        private void Resultlist_MouseDown(object sender, MouseEventArgs e)
        {
            TreeListHitInfo hitInfo = Resultlist.CalcHitInfo(e.Location);
            //鼠标左键点击
            if (e.Button == MouseButtons.Left && hitInfo.HitInfoType == HitInfoType.Column && pageCount > 0)
            {
                if (hitInfo.Column.FieldName == "物料编码")
                {
                    ordername = "DefID";
                    if (orderint == 1)//判断排序规则
                    { orderint = 2; }
                    else { orderint = 1; }
                }
                else if (hitInfo.Column.FieldName == "物料名称")
                {
                    ordername = "DefName";
                    if (orderint == 3)
                    { orderint = 4; }
                    else { orderint = 3; }
                }
                else if (hitInfo.Column.FieldName == "物料大类")
                {
                    ordername = "TypeCD";
                    if (orderint == 5)
                    { orderint = 6; }
                    else { orderint = 5; }
                }
                else if (hitInfo.Column.FieldName == "设备小类")
                {
                    ordername = "ClassName";
                    if (orderint == 7)
                    { orderint = 8; }
                    else { orderint = 7; }
                }
                else
                {
                    return;
                }
                switch (orderint)
                {
                    case 1:
                    case 3:
                    case 5:
                    case 7: order = "ASC"; break;
                    default: order = "DESC"; break;
                }
                BindPageGridList();
            }
            else { return; }
        }
        private void Resultlist_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            TreeListHitInfo hitInfo = Resultlist.CalcHitInfo(e.Location);
            if (e.Button == MouseButtons.Left && hitInfo.HitInfoType == HitInfoType.Cell)
            {
                if (Resultlist.FocusedNode.Selected && !Resultlist.FocusedNode.HasChildren)
                {
                    DefPK = Resultlist.FocusedNode.ParentNode.GetValue("物料识别号").ToString();
                    DefID = Resultlist.FocusedNode.ParentNode.GetValue("物料编码").ToString();
                    version = Resultlist.FocusedNode.GetValue("物料编码").ToString();
                    base.DialogResult = DialogResult.OK;
                    base.Close();
                }
                else if (Resultlist.FocusedNode.Selected && Resultlist.FocusedNode.HasChildren)
                {
                    DefPK = Resultlist.FocusedNode.GetValue("物料识别号").ToString();
                    DefID = Resultlist.FocusedNode.GetValue("物料编码").ToString();
                    base.DialogResult = DialogResult.OK;
                    base.Close();
                }
                else
                {
                    return;
                }
            }
            else { return; }
        }
    }

先写这么多有问题和建议或者哪里不明白的地方可以直接私聊我，如果觉得有帮助帮我点个赞我让我有动力继续发博客谢谢了。