OA系统

开发平台：
C#

SheetSign.cs：源码内容
							using System;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.ComponentModel;
namespace OThinker.H3.WorkSheet
{
	/// <summary>
	/// Summary description for SheetSign.
	/// </summary>
	[DefaultProperty("Text"), 
		ToolboxData("<{0}:SheetSign runat=server></{0}:SheetSign>")]
	public class SheetSign : SheetLabel
	{
		public SheetSign()
		{
		}
		private string PackSign(string Signer, string SignDate)
		{
			return Signer + " " + SignDate;
		}
		private string UnpackSign(string Sign)
		{
			if(Sign == null || Sign.IndexOf(" ") == -1)
			{
                return null;
			}
			else
			{
				int index = Sign.IndexOf(" ");
				string Signer = Sign.Substring(0, index);
                string SignDate = Sign.Substring(index + 1);
                return this.GetText(Signer, SignDate);
			}
		}
        private string GetText(string Signer, string SignDate)
        {
            return "签名：" + Signer + "  日期：" + SignDate;
        }
        public override void LoadDataField(SheetPage SheetPage)
		{
			
		}
        public override void SaveDataField(OThinker.H3.WorkSheet.SheetPage SheetPage)
		{
			if(
				this.DataField != null &&
				this.DataField != "" &&
				SheetPage.Enviroment.InstanceData[this.DataField] != null && 
				SheetPage.Enviroment.InstanceData[this.DataField].ItemType == typeof(string) && 
                SheetPage.Enviroment.InstanceData[this.DataField].ToString().Trim() != "" &&
                SheetPage.Enviroment.InstanceData[this.DataField].ToString().Trim() != null && 
				SheetPage.Enviroment.InstanceData[this.DataField].Visible && 
				SheetPage.Enviroment.InstanceData[this.DataField].Editable)
			{
				// 如果允许写的话，则读取当前用户
                string Signer = SheetPage.Enviroment.Organization.GetFullName(SheetPage.Enviroment.Participant);
				string SignDate = System.DateTime.Now.ToShortDateString();
				// 打包
				SheetPage.Enviroment.InstanceData[DataField].Value = this.PackSign(Signer, SignDate);
			}
		}
		/// <summary> 
		/// Render this control to the output parameter specified.
		/// </summary>
		/// <param name="output"> The HTML writer to write out to </param>
        protected override void Render(HtmlTextWriter output)
        {
            SheetPage sheetPage = (SheetPage)this.Page;
            if (this.DataField == null || this.DataField == "" ||
                sheetPage.Enviroment.InstanceData[this.DataField] == null ||
                sheetPage.Enviroment.InstanceData[this.DataField].ItemType != typeof(string) ||
                sheetPage.Enviroment.InstanceData[this.DataField].Visible == false)
            {
                this.Text = null;
            }
            else if (sheetPage.Enviroment.InstanceData[this.DataField].Value != null &&
                    ((string)sheetPage.Enviroment.InstanceData[this.DataField].Value) != "")
            {
                // 获得签名的全部内容
                string sign = sheetPage.Enviroment.InstanceData[this.DataField].Value.ToString();
                // 解开签名
                this.Text = this.UnpackSign(sign);
            }
            else if (sheetPage.Enviroment.InstanceData[this.DataField].Editable)
            {
                // 如果允许写的话，则读取当前用户
                string Signer = sheetPage.Enviroment.Organization.GetFullName(sheetPage.Enviroment.Participant);
                string SignDate = System.DateTime.Now.ToShortDateString();
                this.Text = this.GetText(Signer, SignDate);
            }
            else
            {
                this.Text = null;
            }
            base.Render(output);
        }
	}
}

						