using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Collections;

namespace Common
{
	/// <summary>
	/// FixDBManager 的摘要说明。
	/// </summary>
	public sealed class FixDBManager
	{
		public FixDBManager()
		{
			//
			// TODO: 在此处添加构造函数逻辑
			//
		}
		public static object[] FixValues(object[] values)
		{
			for ( int i = 0 ;i< values.Length  ;i++)
			{
				if (values[i]  == null)
				{
					values[i] = DBNull.Value ;
				}
				else if(values[i].GetType().FullName  == "System.String")
				{
					values[i] = ((string)values[i]).Length != 0? values[i]: DBNull.Value;
				}
			}
			return values;
		}
		public static string CheckNullStr(object obj)
		{
			if(obj == null || obj.GetType() == typeof(System.DBNull))
			{
				return "";
			}
			else
			{
				return Convert.ToString(obj);
			}
		}
		public static int CheckNullInt(object obj)
		{
			if(obj == null || obj.GetType() == typeof(System.DBNull))
			{
				return 0;
			}
			else
			{
				return Convert.ToInt32(obj);
			}
		}
		public static System.Decimal CheckNullDecimal(object obj)
		{
			if(obj == null || obj.GetType() == typeof(System.DBNull))
			{
				return 0;
			}
			else
			{
				return Convert.ToDecimal(obj);
			}
		}
        public static void Init_ComboControl(System.Windows.Forms.Control ComboControl, string TableName, string _displayMember, string _valueMember, ref System.Data.DataSet dst)
        {
            try
            {
                switch (ComboControl.GetType().ToString())
                {
                    case "Infragistics.Win.UltraWinGrid.UltraCombo":
                        if (!dst.Tables.Contains(TableName))
                        {
                            MessageBox.Show("绑定表：" + TableName + "不存在，不能对控件" + ComboControl.Name + "进行初始化！");
                            return;
                        }
                        System.Data.DataTable newTable = dst.Tables[TableName].Copy();
                        newTable.TableName = TableName;
                        System.Data.DataRow newRow = newTable.NewRow();
                        for (int i = 0; i < dst.Tables[TableName].Columns.Count; i++)
                        {
                            newRow[i] = "";
                        }
                        newTable.Rows.Add(newRow);
                        newTable.AcceptChanges();

                        ((Infragistics.Win.UltraWinGrid.UltraCombo)ComboControl).DataSource = new System.Data.DataView(newTable);
                        ((Infragistics.Win.UltraWinGrid.UltraCombo)ComboControl).DisplayMember = _displayMember;
                        ((Infragistics.Win.UltraWinGrid.UltraCombo)ComboControl).ValueMember = _valueMember;
                        foreach (System.Data.DataColumn col in dst.Tables[TableName].Columns)
                        {
                            if (col.ColumnName != _displayMember)
                            {
                                ((Infragistics.Win.UltraWinGrid.UltraCombo)ComboControl).DisplayLayout.Bands[TableName].Columns[col.ColumnName].Hidden = true;
                            }
                            else
                            {
                                ((Infragistics.Win.UltraWinGrid.UltraCombo)ComboControl).DisplayLayout.Bands[TableName].Columns[col.ColumnName].Band.ColHeadersVisible = false;
                                ((Infragistics.Win.UltraWinGrid.UltraCombo)ComboControl).DisplayLayout.Bands[TableName].Columns[col.ColumnName].Width = ((Infragistics.Win.UltraWinGrid.UltraCombo)ComboControl).Width;
                            }
                        }
                        break;
                }
            }
            catch (System.Exception ex)
            {
                System.Diagnostics.Debug.WriteLine(ex.ToString());
            }
        }
        public static string splitArray(object obj, char splitor)
        {
            IList checkedItems = null;
            string checkedItem = "";
            StringBuilder str = new StringBuilder();
            checkedItems = obj as IList;
            if (checkedItems != null)
            {
                for (int i = 0; i < checkedItems.Count; i++)
                {
                    // Each item in the list will be the value in the row that corresponds
                    // to the ValueMember of the combo
                    str = str.Append(splitor).Append((string)checkedItems[i]);
                }
            }
            checkedItem = str.ToString();
            return checkedItem;
        }

	}
}