ASPxGridView 动态模板列

最新推荐文章于 2021-01-17 17:51:58 发布

原创最新推荐文章于 2021-01-17 17:51:58 发布 · 1.3k 阅读

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#textbox #string #object #class #null

本文介绍了一个基于ASPxGridView的自定义编辑模板实现方法，通过EdiFormTemplate类为每个编辑行创建动态的Tab页及输入控件，并保存原始数据以支持修改原因的追踪。

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.cs

EdiFormTemplate template = new EdiFormTemplate();

    protected void Page_Load(object sender, EventArgs e)
    {

        InputByBatchIndexList.Templates.EditForm = template;
        template.Grid = InputByBatchIndexList;

    }

#region EdiFormTemplate
    public class EdiFormTemplate : ITemplate
    {
        private ASPxGridView _gridView;

        public ASPxGridView Grid
        {
            get
            {
                return _gridView;
            }

            set
            {
                _gridView = value;
            }
        }

        public EdiFormTemplate()
        {

        }

        public void InstantiateIn(Control container)
        {

            int index = (container as GridViewEditFormTemplateContainer).VisibleIndex;
            string rowAndCol = string.Empty;
            bool isFirst = false;
            string oldValue = string.Empty;
            ASPxPageControl pc = new ASPxPageControl();
            pc.ID = "ASPxPageControl1";

            if (HttpContext.Current.Session["dt_DynamicListByItem"] != null)
            {
                DataTable dt_DynamicList = (DataTable)HttpContext.Current.Session["dt_DynamicListByItem"];

                int i = 0;
                foreach (DataColumn dc in dt_DynamicList.Columns)
                {
                    if (i > 4)
                    {
                        //绑定列的字段
                        pc.TabPages.Add(dc.ColumnName.ToString());
                    }
                    i++;
                }
                int j = 0;
                foreach (DataColumn dc in dt_DynamicList.Columns)
                {
                    if (j > 4)
                    {
                        //绑定数据
                        ASPxLabel lab1 = new ASPxLabel();

                        lab1.Text = dc.ColumnName.ToString() + ":";
                        pc.TabPages[j - 5].Controls.Add(lab1);

                        HiddenField hf = new HiddenField();
                        TextBox catTxt = new TextBox();
                        catTxt.ID = "ASPxTextBox" + (j - 4).ToString();
                        hf.ID = "HiddenField" + (j - 4).ToString();
                        if (!_gridView.IsNewRowEditing)
                        {
                            catTxt.Text = _gridView.GetRowValues(index, dc.ColumnName.ToString()).ToString();
                            rowAndCol = index.ToString() + "," + (j).ToString();
                            oldValue = catTxt.Text;
                            InputByItems_TopLims_InPutByItems_Index indexpage = new InputByItems_TopLims_InPutByItems_Index();
                            hf.Value = indexpage.GetResultID(index, j);

                            if (catTxt.Text != "")
                            {
                                isFirst = true;
                            }
                            catTxt.Attributes.Add("onchange", "ModiReasonClick('" + rowAndCol + "','" + isFirst + "','" + oldValue + "')");

                        }
                        pc.TabPages[j - 5].Controls.Add(catTxt);
                        pc.TabPages[j - 5].Controls.Add(hf);
                    }
                    j++;
                }
            }
            container.Controls.Add(pc);

            ASPxGridViewTemplateReplacement upd = new ASPxGridViewTemplateReplacement();
            upd.ReplacementType = GridViewTemplateReplacementType.EditFormUpdateButton;
            upd.ID = "Update";
            container.Controls.Add(upd);

            ASPxGridViewTemplateReplacement can = new ASPxGridViewTemplateReplacement();
            can.ReplacementType = GridViewTemplateReplacementType.EditFormCancelButton;
            can.ID = "Cancel";
            container.Controls.Add(can);
        }

    }
    #endregion