using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web.UI.WebControls;
using System.Data;

namespace Bowin.Common
{
    public static class BindDataTools
    {
        /// <summary>
        /// 绑定下拉框
        /// modify tlq 2012-4-16
        /// </summary>
        /// <param name="ddl"></param>
        /// <param name="T">绑定的数据源</param>
        /// <param name="defaultValue">显示默认第一项的内容：[----请选择----]</param>
        /// <param name="textField">绑定的显示名(不写默认DataTable的第二列)</param>
        /// <param name="valueField">绑定的值(不写默认DataTable的第一列)</param>
        public static void BindDataTable(this DropDownList ddl, DataTable T, string defaultValue = "", string textField = "", string valueField = "", bool IsShowSelected=true)
        {
            try
            {
                if (IsShowSelected)
                {
                    if (defaultValue != "")
                    {
                        ddl.Items.Add(new System.Web.UI.WebControls.ListItem(defaultValue, ""));

                    }
                    else
                    {
                        ddl.Items.Add(new System.Web.UI.WebControls.ListItem("===未指定===", ""));
                    }
                }

                for (int i = 0; i < T.Rows.Count; i++)
                {
                    ddl.Items.Add(new ListItem(textField != "" ? T.Rows[i][textField].ToString() : T.Rows[i][1].ToString(), valueField != "" ? T.Rows[i][valueField].ToString() : T.Rows[i][0].ToString()));
                }
                if (ddl.Items.Count > 0)
                {
                    ddl.SelectedIndex = 0;      
                }
            }
            catch
            {
            }
        }

       

        /// <summary>
        /// 绑定下拉框
        /// modify tlq 2012-4-16
        /// </summary>
        /// <param name="ddl"></param>
        /// <param name="T">绑定的数据源</param>
        /// <param name="defaultValue">显示默认第一项的内容：[----请选择----]</param>
        /// <param name="textField">绑定的显示名(不写默认DataTable的第二列)</param>
        /// <param name="valueField">绑定的值(不写默认DataTable的第一列)</param>
        public static void BindDataTable(this ListBox ddl, DataTable T, string defaultValue = "", string textField = "", string valueField = "", bool IsShowSelected=true)
        {
            try
            {
                if (IsShowSelected)
                {
                    if (defaultValue != "")
                    {
                        ddl.Items.Add(new System.Web.UI.WebControls.ListItem(defaultValue, ""));

                    }
                    else
                    {
                        ddl.Items.Add(new System.Web.UI.WebControls.ListItem("===未指定===", ""));
                    }
                }

                for (int i = 0; i < T.Rows.Count; i++)
                {
                    ddl.Items.Add(new ListItem(textField != "" ? T.Rows[i][textField].ToString() : T.Rows[i][1].ToString(), valueField != "" ? T.Rows[i][valueField].ToString() : T.Rows[i][0].ToString()));
                }
                if (ddl.Items.Count > 0)
                {

                    ddl.SelectedIndex = 0;
                }
            }
            catch
            {
            }
        }

       
    }
}