OA系统

开发平台：
C#

SheetInstancePrioritySelector.cs：源码内容
							using System;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.ComponentModel;
using System.Drawing;
using System.Web.UI.Design;
using System.Drawing.Design;
[assembly: TagPrefix("OThinker.H3.WorkSheet", "SheetControls")]
namespace OThinker.H3.WorkSheet
{
    /// <summary>
    /// SheetInstancePrioritySelector 的摘要说明。
    /// </summary>
    [ToolboxBitmap(typeof(SheetInstancePrioritySelector), "OThinker.H3.WorkSheet.SheetInstancePrioritySelector.bmp")]
    [ToolboxData("<{0}:SheetInstancePrioritySelector runat=server></{0}:SheetInstancePrioritySelector>")]
    public class SheetInstancePrioritySelector : System.Web.UI.WebControls.DropDownList, ISheetControl
    {
        public SheetInstancePrioritySelector()
        {
            // this.EnableViewState = false;
        }
        public const string DataField = "InstancePriority";
        public const string Html = "<select name="" + DataField + "" />";
        private RenderType _RenderType = RenderType.LabelWhenDisable;
        /// <summary>
        /// 显示方式
        /// </summary>
        [Bindable(true), Category("WorkSheet"), Description("控制控件的显示方式")]
        public RenderType RenderType
        {
            get
            {
                return this._RenderType;
            }
            set
            {
                this._RenderType = value;
            }
        }
        #region ISheetControl 成员
        public virtual void LoadDataField(OThinker.H3.WorkSheet.SheetPage SheetPage)
        {
            // 获得优先级
            Instance.PriorityType priority = SheetPage.Enviroment.InstanceManager.GetInstancePriority(SheetPage.Enviroment.InstanceId);
            string priorityName = Instance.PriorityTypeConvertor.ToString(priority);
            if (SheetPage.Enviroment.Workflow.StartActivity == SheetPage.Enviroment.ActivityName)
            {
                string[] names = Instance.PriorityTypeConvertor.GetAllPriority();
                foreach (string name in names)
                {
                    this.Items.Add(name);
                }
                this.SelectedValue = priorityName;
                // 如果当期活动为发起活动的话，则允许写
                this.Enabled = true;
            }
            else
            {
                this.Items.Add(priorityName);
                this.Enabled = false;
            }
        }
        public virtual bool ValidateDataField(OThinker.H3.WorkSheet.SheetPage SheetPage, System.Collections.Generic.List<string> Errors)
        {
            return true;
        }
        public virtual void SaveDataField(OThinker.H3.WorkSheet.SheetPage SheetPage)
        {
            if (SheetPage.Enviroment.Workflow.StartActivity == SheetPage.Enviroment.ActivityName)
            {
                // 获得优先级
                string priorityName = this.SelectedValue;
                Instance.PriorityType priority = Instance.PriorityTypeConvertor.ToPriorityType(priorityName);
                SheetPage.Enviroment.InstanceManager.SetInstancePriority(SheetPage.Enviroment.InstanceId, priority);
                SheetPage.Enviroment.WorkItemManager.UpdatePriority(SheetPage.Enviroment.WorkItemID, priority);
            }
        }
        #endregion
        protected override void Render(HtmlTextWriter writer)
        {
            if (this.Enabled || this.RenderType != RenderType.LabelWhenDisable)
            {
                base.Render(writer);
            }
            else
            {
                writer.Write(this.SelectedItem.Text);
            }
        }
    }
}

						