timepicker.cs

Club Site Starter Kit.rar .net 压缩包解压时不能有密码。

using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Text;

namespace ClubSite
{
    public class TimePicker : WebControl, INamingContainer
    {
        private TextBox _innerTbx;
        private ListBox _innerList;
        private string errorText = null;

        public TimePicker() : base(HtmlTextWriterTag.Div)
        {
            
        }

        public System.DateTime SelectedTime
        {
            get
            {
                EnsureChildControls();
                System.DateTime d=DateTime.Now;
                try
                {
                    d = System.DateTime.Parse(_innerTbx.Text);
                    errorText = null;
                }
                catch
                {
                    errorText = "Date needs to be specified as hh:mm";
                }
                return d;
            }
            set
            {
                EnsureChildControls();
                string s = value.ToString("h:mm tt");
                _innerTbx.Text = s;
                ListItem item = _innerList.Items.FindByText(s);
                if (item != null)
                {
                    _innerList.SelectedValue = s;
                }
            }
        }

        protected override void CreateChildControls()
        {
            base.CreateChildControls();
            
            _innerTbx = new TextBox();
            Controls.Add(_innerTbx);

            _innerList = new ListBox();
            FillTimes();
            Controls.Add(_innerList);
        }

        void FillTimes()
        {
            if (_innerList.Items.Count == 0)
            {
                for (int i = 6; i <= 11; i++)
                {
                    _innerList.Items.Add(i + ":00 AM");
                    _innerList.Items.Add(i + ":30 AM");
                }
                _innerList.Items.Add("12:00 PM");
                _innerList.Items.Add("12:30 PM");
                for (int i = 1; i <= 11; i++)
                {
                    _innerList.Items.Add(i + ":00 PM");
                    _innerList.Items.Add(i + ":30 PM");
                }
            }
        }

        protected override System.Web.UI.HtmlTextWriterTag TagKey
        {
            get
            {
                return HtmlTextWriterTag.Div;
            }
        }

        protected override void AddAttributesToRender(System.Web.UI.HtmlTextWriter writer)
        {
            if (this.Width.IsEmpty)
            {
                this.Width = new Unit(150);
            }
            this.Style.Add("display", "inline-table");
            base.AddAttributesToRender(writer);
        }

        protected override void RenderContents(System.Web.UI.HtmlTextWriter writer)
        {
            string listid = _innerList.ClientID;
            string tbxid = _innerTbx.ClientID;

            _innerTbx.Attributes.Add("Align", "AbsMiddle");
            _innerTbx.Width = new Unit(100);
            _innerTbx.RenderControl(writer);

            writer.AddAttribute("Align", "AbsMiddle");
            writer.AddAttribute("src", "images/dropdownbtn.gif");
            writer.AddAttribute("onClick", "__timepicker_showpopup('" + listid + "')");
            writer.RenderBeginTag(HtmlTextWriterTag.Img);
            writer.RenderEndTag();
          
            if (errorText != null)
            {
                writer.AddStyleAttribute("color", "red");
                writer.AddStyleAttribute("display", "block");
                writer.RenderBeginTag(HtmlTextWriterTag.Span);
                writer.Write(errorText);
                writer.RenderEndTag();
            }
            writer.AddStyleAttribute("position", "relative");
            writer.RenderBeginTag(HtmlTextWriterTag.Div);

            _innerList.Width = new Unit(120);
            _innerList.Rows = 8;
            _innerList.Style.Add("position", "absolute");
            _innerList.Style.Add("left", "0px");
            _innerList.Style.Add("display", "none");
            _innerList.Attributes.Add("onfocusout", "__popup_losefocus(this);");
            _innerList.Attributes.Add("onchange", "__timepicker_timechanged('" + tbxid + "',this);");
            _innerList.RenderControl(writer);

            writer.RenderEndTag();
        }

        protected override void OnPreRender(System.EventArgs e)
        {
            base.OnPreRender(e);

            commonScript.WritePopupRoutines(Page);
            
            StringBuilder sb = new StringBuilder();
            sb.AppendLine("function __timepicker_showpopup(name)");
            sb.AppendLine("{");
            sb.AppendLine(" if (__popup_panel != null)");
            sb.AppendLine(" {");
            sb.AppendLine(" document.getElementById(__popup_panel).style.display='none';");
            sb.AppendLine(" }");
            sb.AppendLine(" __popup_panel=name;");
            sb.AppendLine(" var panel=document.getElementById(__popup_panel);");
            sb.AppendLine(" panel.style.display='block';");
            sb.AppendLine(" panel.focus();");
            sb.AppendLine(" window.event.cancelBubble=true;");
            sb.AppendLine("}");

            sb.AppendLine("function __timepicker_timechanged(tbxid, selectid)");
            sb.AppendLine("{");
            sb.AppendLine("document.getElementById(tbxid).value=selectid.options[selectid.selectedIndex].text;");
            sb.AppendLine(" if (__popup_panel != null)");
            sb.AppendLine(" {");
            sb.AppendLine(" document.getElementById(__popup_panel).style.display='none';");
            sb.AppendLine(" __popup_panel=null;");
            sb.AppendLine(" }");
            sb.AppendLine("}");

            Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "popup", sb.ToString(), true);
        }
    }
}