LIOT/Framework/Bowin.Web.Controls.Mvc/Component.ComboGrid/ComboGrid.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web.Mvc;

namespace Bowin.Web.Controls.Mvc
{
    public class ComboGrid : BaseControl
    {
        public ComboGridOptions ComboGridOptions { get; set; }
        public IDictionary<string, string> GridAttributes { get; set; }

        public static ComboGrid CreateControl(ComboGridOptions comboGridOptions, IDictionary<string, string> attributes = null, IDictionary<string, string> gridAttributes = null)
        {
            ComboGrid comboGrid = new ComboGrid();

            comboGrid.ComboGridOptions = comboGridOptions;
            comboGrid.ComboGridOptions.GridOptions.ID = comboGrid.ComboGridOptions.ID + "_gridX";
            comboGrid.ComboGridOptions.GridOptions.Name = comboGrid.ComboGridOptions.Name + "_gridX";
            comboGrid.ComboGridOptions.GridOptions.PagerType = PagerType.Simple;
            if (!comboGrid.ComboGridOptions.GridOptions.PageSize.HasValue)
            {
                comboGrid.ComboGridOptions.GridOptions.PageSize = 10;
            }
            comboGrid.Attributes = attributes;
            comboGrid.GridAttributes = gridAttributes;

            return comboGrid;
        }

        protected IDictionary<string, string> GetPropertyList()
        {
            var dictPropertyList = new Dictionary<string, string>();

            dictPropertyList.Add("id", this.ComboGridOptions.ID);
            if (!string.IsNullOrEmpty(this.ComboGridOptions.Name))
            {
                dictPropertyList.Add("comboname", this.ComboGridOptions.Name);
            }
            dictPropertyList.Add("class", string.Format("easyui-combogridX {0}", string.IsNullOrEmpty(this.ComboGridOptions.CssClass) ? "" : this.ComboGridOptions.CssClass));

            if (this.ComboGridOptions.Width.HasValue)
            {
                dictPropertyList.Add("width", this.ComboGridOptions.Width.ToString());
            }

            if (this.ComboGridOptions.IsShow.HasValue && !this.ComboGridOptions.IsShow.Value)
            {
                if (dictPropertyList.Keys.Contains("style"))
                    dictPropertyList["style"] += "display:none;";
                else
                    dictPropertyList.Add("style", "display:none;");

            }

            #region data-options
            var dictOptions = new Dictionary<string, string>();

            if (string.IsNullOrEmpty(this.ComboGridOptions.TextField))
            {
                throw new Exception("必须指定TextField");
            }
            if (string.IsNullOrEmpty(this.ComboGridOptions.ValueField))
            {
                throw new Exception("必须指定ValueField");
            }

            dictOptions.Add("textField", "'" + this.ComboGridOptions.TextField + "'");
            dictOptions.Add("valueField", "'" + this.ComboGridOptions.ValueField + "'");

            if (this.ComboGridOptions.IsAutoComplete.HasValue)
            {
                dictOptions.Add("isAutoComplete", this.ComboGridOptions.IsAutoComplete.Value ? "true" : "false");
                if (this.ComboGridOptions.MinReloadCharactor.HasValue)
                {
                    dictOptions.Add("minReloadCharactor", this.ComboGridOptions.MinReloadCharactor.Value.ToString());
                }
            }

            if (!string.IsNullOrEmpty(this.ComboGridOptions.OnSelect))
            {
                dictOptions.Add("onSelect", this.ComboGridOptions.OnSelect);
            }

            if (!string.IsNullOrEmpty(this.ComboGridOptions.OnChange))
            {
                dictOptions.Add("onChange", this.ComboGridOptions.OnChange);
            }

            if (this.ComboGridOptions.Width.HasValue && !this.ComboGridOptions.PanelWidth.HasValue)
            {
                dictOptions.Add("panelWidth", Math.Ceiling((double)this.ComboGridOptions.Width.Value * 1.5).ToString());
            }
            else if (this.ComboGridOptions.PanelWidth.HasValue)
            {
                dictOptions.Add("panelWidth", this.ComboGridOptions.PanelWidth.ToString());
            }

            if (this.ComboGridOptions.Height.HasValue)
            {
                dictOptions.Add("panelHeight", Math.Ceiling((double)this.ComboGridOptions.Height.Value * 1.5).ToString());
            }

            if (ComboGridOptions.SelectedValue != null &&
                ComboGridOptions.SelectedValue.ToString() != "")
            {
                dictOptions.Add("value", "'" + this.ComboGridOptions.SelectedValue + "'");
            }
            else
            {
                dictOptions.Add("value", "'-1'");
            }

            if (!string.IsNullOrEmpty(ComboGridOptions.SelectedText))
            {
                dictOptions.Add("text", "'" + this.ComboGridOptions.SelectedText + "'");
            }
            else
            {
                dictOptions.Add("text", "''");
            }

            if (ComboGridOptions.SelectedIndex.HasValue)
            {
                dictOptions.Add("selectedIndex", this.ComboGridOptions.SelectedIndex.Value.ToString());
            }

            if (!string.IsNullOrEmpty(ComboGridOptions.EmptyText))
            {
                dictOptions.Add("emptyText", "'" + this.ComboGridOptions.EmptyText + "'");
            }

            if (ComboGridOptions.IsEnabled == false)
            {
                dictOptions.Add("enabled", "false");
            }
            else
            {
                dictOptions.Add("enabled", "true");
            }

            dictPropertyList.Add("data-options", string.Join(",", dictOptions.Select(x => string.Format("{0}:{1}", x.Key, x.Value))));
            #endregion data-options

            return dictPropertyList;
        }

        public override string Render()
        {
            StringBuilder html = new StringBuilder();
            TagBuilder tabBuilder = new TagBuilder("span");
            tabBuilder.MergeAttributes<string, string>(GetPropertyList());
            if (this.Attributes != null)
            {
                tabBuilder.MergeAttributes<string, string>(this.Attributes);
            }
            TagBuilder tagInput = new TagBuilder("input");
            tagInput.AddCssClass("combo-text");
            if (this.ComboGridOptions.IsRequired == true)
            {
                tagInput.AddCssClass("validatebox-text");
            }
            tagInput.Attributes.Add("type", "text");
            if (!string.IsNullOrEmpty(this.ComboGridOptions.EmptyText))
            {
                //tagInput.Attributes.Add("placeholder", this.ComboGridOptions.EmptyText);
                tagInput.Attributes.Add("value", this.ComboGridOptions.EmptyText);
                tagInput.Attributes.Add("onfocus", "if (value =='" + this.ComboGridOptions.EmptyText + "'){value =''}");
                tagInput.Attributes.Add("onblur", "if (value ==''){value ='" + this.ComboGridOptions.EmptyText + "'}");
            }
            if (ComboGridOptions.IsEnabled == false)
            {
                tagInput.Attributes.Add("disabled", "disabled");
            }

            if ((this.ComboGridOptions.IsAutoComplete ?? true) == false)
            {
                tagInput.Attributes.Add("readonly", "true");
            }

            TagBuilder tagHidden = new TagBuilder("input");
            if (!string.IsNullOrEmpty(this.ComboGridOptions.Name))
            {
                tagHidden.Attributes.Add("name", this.ComboGridOptions.Name);
            }
            tagHidden.Attributes.Add("type", "hidden");
            tagHidden.AddCssClass("combogridX-value");

            html.Append(tabBuilder.ToString(TagRenderMode.StartTag));
            html.Append(tagInput.ToString(TagRenderMode.SelfClosing));
            html.Append("<span><span class=\"combo-clear\"></span><span class=\"combo-arrow combogridX-arrow\"></span></span>");
            html.Append(tagHidden.ToString(TagRenderMode.SelfClosing));
            html.Append("<div class=\"easyui-panel combogridX-expander\">");
            if (this.ComboGridOptions.GridOptions.Columns.Count <= 1)
            {
                this.ComboGridOptions.GridOptions.IsShowHeader = false;
            }
            html.Append(DataGrid.CreateControl(this.ComboGridOptions.GridOptions, this.GridAttributes).Render());
            html.Append("</div>");
            html.Append(tabBuilder.ToString(TagRenderMode.EndTag));
            return html.ToString();
        }
    }
}