newtransactionform.cs

国人开发的电子钱包

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Runtime.InteropServices;

namespace MvmMoney
{
	/// <summary>
	/// Summary description for NewTransactionForm.
	/// </summary>
	public class NewTransactionForm : System.Windows.Forms.Form
	{
		private System.Windows.Forms.MainMenu mainMenu1;
		private System.Windows.Forms.MenuItem menuItem_Done;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.ComboBox comboBox_Accounts;
		private System.Windows.Forms.ComboBox comboBox_Types;
		private System.Windows.Forms.TextBox textBox_Amount;
		private System.Windows.Forms.Label label4;
		private System.Windows.Forms.Label label5;
		private System.Windows.Forms.TextBox textBox_Note;
		private System.Windows.Forms.ComboBox comboBox_EI;
		private System.Windows.Forms.MenuItem menuItem_Cancel;
	
		public NewTransactionForm()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			//
			// TODO: Add any constructor code after InitializeComponent call
			//
			DataTable accounts=Form1.db.GetAccounts();
			foreach(DataRow row in accounts.Rows)
			{
				this.comboBox_Accounts.Items.Add(row["Name"]);
			}

			foreach(string typename in Form1.db.GetTypes())
			{
				this.comboBox_Types.Items.Add(typename);
			}
			
			this.SetInputMode(this.textBox_Amount,InputMode.Numbers);
			this.comboBox_Accounts.Focus();
			this.comboBox_EI.SelectedIndex=0;
			this.comboBox_Accounts.SelectedIndex=0;
			this.comboBox_Types.SelectedIndex=0;
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.mainMenu1 = new System.Windows.Forms.MainMenu();
			this.menuItem_Done = new System.Windows.Forms.MenuItem();
			this.menuItem_Cancel = new System.Windows.Forms.MenuItem();
			this.label1 = new System.Windows.Forms.Label();
			this.label2 = new System.Windows.Forms.Label();
			this.comboBox_Accounts = new System.Windows.Forms.ComboBox();
			this.comboBox_Types = new System.Windows.Forms.ComboBox();
			this.label3 = new System.Windows.Forms.Label();
			this.textBox_Amount = new System.Windows.Forms.TextBox();
			this.label4 = new System.Windows.Forms.Label();
			this.comboBox_EI = new System.Windows.Forms.ComboBox();
			this.label5 = new System.Windows.Forms.Label();
			this.textBox_Note = new System.Windows.Forms.TextBox();
			// 
			// mainMenu1
			// 
			this.mainMenu1.MenuItems.Add(this.menuItem_Done);
			this.mainMenu1.MenuItems.Add(this.menuItem_Cancel);
			// 
			// menuItem_Done
			// 
			this.menuItem_Done.Text = "Done";
			this.menuItem_Done.Click += new System.EventHandler(this.menuItem_Done_Click);
			// 
			// menuItem_Cancel
			// 
			this.menuItem_Cancel.Text = "Cancel";
			this.menuItem_Cancel.Click += new System.EventHandler(this.menuItem_Cancel_Click);
			// 
			// label1
			// 
			this.label1.Font = new System.Drawing.Font("Nina", 10F, System.Drawing.FontStyle.Bold);
			this.label1.Location = new System.Drawing.Point(6, 6);
			this.label1.Size = new System.Drawing.Size(152, 18);
			this.label1.Text = "Account";
			// 
			// label2
			// 
			this.label2.Font = new System.Drawing.Font("Nina", 10F, System.Drawing.FontStyle.Bold);
			this.label2.Location = new System.Drawing.Point(6, 48);
			this.label2.Size = new System.Drawing.Size(152, 18);
			this.label2.Text = "Type";
			// 
			// comboBox_Accounts
			// 
			this.comboBox_Accounts.Font = new System.Drawing.Font("Nina", 10F, System.Drawing.FontStyle.Regular);
			this.comboBox_Accounts.Location = new System.Drawing.Point(6, 24);
			this.comboBox_Accounts.Size = new System.Drawing.Size(162, 24);
			// 
			// comboBox_Types
			// 
			this.comboBox_Types.Font = new System.Drawing.Font("Nina", 10F, System.Drawing.FontStyle.Regular);
			this.comboBox_Types.Location = new System.Drawing.Point(6, 66);
			this.comboBox_Types.Size = new System.Drawing.Size(162, 24);
			// 
			// label3
			// 
			this.label3.Font = new System.Drawing.Font("Nina", 10F, System.Drawing.FontStyle.Bold);
			this.label3.Location = new System.Drawing.Point(6, 90);
			this.label3.Size = new System.Drawing.Size(60, 18);
			this.label3.Text = "Amount";
			// 
			// textBox_Amount
			// 
			this.textBox_Amount.Font = new System.Drawing.Font("Nina", 10F, System.Drawing.FontStyle.Regular);
			this.textBox_Amount.Location = new System.Drawing.Point(6, 108);
			this.textBox_Amount.Size = new System.Drawing.Size(54, 24);
			this.textBox_Amount.Text = "0.0";
			this.textBox_Amount.LostFocus += new System.EventHandler(this.textBox_Amount_LostFocus);
			// 
			// label4
			// 
			this.label4.Font = new System.Drawing.Font("Nina", 10F, System.Drawing.FontStyle.Bold);
			this.label4.Location = new System.Drawing.Point(66, 90);
			this.label4.Size = new System.Drawing.Size(108, 18);
			this.label4.Text = "Expense/Income";
			// 
			// comboBox_EI
			// 
			this.comboBox_EI.Font = new System.Drawing.Font("Nina", 10F, System.Drawing.FontStyle.Regular);
			this.comboBox_EI.Items.Add("Expense");
			this.comboBox_EI.Items.Add("Income");
			this.comboBox_EI.Location = new System.Drawing.Point(66, 108);
			this.comboBox_EI.Size = new System.Drawing.Size(102, 24);
			// 
			// label5
			// 
			this.label5.Font = new System.Drawing.Font("Nina", 10F, System.Drawing.FontStyle.Bold);
			this.label5.Location = new System.Drawing.Point(6, 132);
			this.label5.Size = new System.Drawing.Size(152, 18);
			this.label5.Text = "Note";
			// 
			// textBox_Note
			// 
			this.textBox_Note.Font = new System.Drawing.Font("Nina", 10F, System.Drawing.FontStyle.Regular);
			this.textBox_Note.Location = new System.Drawing.Point(6, 150);
			this.textBox_Note.Multiline = true;
			this.textBox_Note.Size = new System.Drawing.Size(162, 24);
			this.textBox_Note.Text = "";
			// 
			// NewTransactionForm
			// 
			this.Controls.Add(this.comboBox_Accounts);
			this.Controls.Add(this.comboBox_Types);
			this.Controls.Add(this.textBox_Amount);
			this.Controls.Add(this.comboBox_EI);
			this.Controls.Add(this.textBox_Note);
			this.Controls.Add(this.label4);
			this.Controls.Add(this.label3);
			this.Controls.Add(this.label2);
			this.Controls.Add(this.label1);
			this.Controls.Add(this.label5);
			this.Menu = this.mainMenu1;
			this.Text = "New Transaction";
			this.Load += new System.EventHandler(this.NewTransactionForm_Load);

		}
		#endregion

		private void menuItem_Cancel_Click(object sender, System.EventArgs e)
		{
			this.Close();
		}

		private void menuItem_Done_Click(object sender, System.EventArgs e)
		{
			double amount;
			try
			{
				amount=System.Double.Parse(this.textBox_Amount.Text);
				amount=(System.Math.Ceiling(amount*100))/100;
				this.textBox_Amount.Text=amount+"";

				if(amount==0)
				{
					MessageBox.Show("Amount should not be zero.","Error",MessageBoxButtons.OK,MessageBoxIcon.Hand,MessageBoxDefaultButton.Button1);
					return;
				}
			}
			catch(Exception)
			{
				MessageBox.Show("Invalid amount.","Error",MessageBoxButtons.OK,MessageBoxIcon.Hand,MessageBoxDefaultButton.Button1);
				return;
			}

			if(this.comboBox_EI.SelectedIndex==0)
			{
				amount=System.Math.Abs(amount)*-1;
			}
			else
			{
				amount=System.Math.Abs(amount);
			}
			
			Form1.db.NewTransaction(this.comboBox_Types.SelectedItem.ToString(),Form1.db.GetAccountId(this.comboBox_Accounts.SelectedItem.ToString()),amount,System.DateTime.Now,this.textBox_Note.Text);
			this.Close();
		}

		// Interop declarations
		[DllImport("coredll.dll", EntryPoint="GetCapture")]
		private static extern IntPtr GetCapture();
		[DllImport("coredll.dll", EntryPoint="GetWindow")]
		private static extern IntPtr GetWindow(IntPtr hWnd, int uCmd);
		[DllImport("coredll.dll", EntryPoint="SendMessage")]
		private static extern uint SendMessage(IntPtr hWnd, uint msg, uint wParam, 
			uint lParam);

		// Constants required for interop
		const int GW_CHILD = 5;
		const uint EM_SETINPUTMODE = 0x00DE;

		public void SetInputMode(Control ctrl, InputMode mode) 
		{
			// Get the handle for the current control
			ctrl.Capture = true;
			IntPtr h = GetCapture();
			ctrl.Capture = false;

			// Get the child window for the control
			IntPtr hEditbox = GetWindow(h, GW_CHILD);
			// Set the input mode
			SendMessage(hEditbox, EM_SETINPUTMODE, 0, (uint)mode);
		}
		// Input mode enumeration
		public enum InputMode 
		{
			Spell = 0,
			T9 = 1,
			Numbers = 2,
			Text = 3
		}

		private void NewTransactionForm_Load(object sender, System.EventArgs e)
		{

		}

		public void SetDefaultAccount(string accountName)
		{
			this.comboBox_Accounts.SelectedIndex=this.comboBox_Accounts.Items.IndexOf(accountName);
		}

		private void textBox_Amount_LostFocus(object sender, System.EventArgs e)
		{
			double amount;
			try
			{
				amount=System.Double.Parse(this.textBox_Amount.Text);
				amount=(System.Math.Ceiling(amount*100))/100;
				this.textBox_Amount.Text=amount+"";
			}
			catch(Exception)
			{
				return;
			}
		}
	}
}