editaccount.cs

C#开发

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

namespace MvmMoney
{
	/// <summary>
	/// Summary description for EditAccount.
	/// </summary>
	public class EditAccount : System.Windows.Forms.Form
	{
		private System.Windows.Forms.MainMenu mainMenu1;
		private System.Windows.Forms.MenuItem menuItem_Save;
		private System.Windows.Forms.MenuItem menuItem_Cancel;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.TextBox textBox_AcntName;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.TextBox textBox_Balance;
		private string accountname;
		
		public EditAccount(string AccountName)
		{
			this.accountname=AccountName;
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			//
			// TODO: Add any constructor code after InitializeComponent call
			//
			this.SetInputMode(this.textBox_AcntName,InputMode.Text);
			this.SetInputMode(this.textBox_Balance,InputMode.Numbers);
			this.textBox_AcntName.Focus();
		}

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

		// 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
		}

		#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_Save = new System.Windows.Forms.MenuItem();
			this.menuItem_Cancel = new System.Windows.Forms.MenuItem();
			this.label1 = new System.Windows.Forms.Label();
			this.textBox_AcntName = new System.Windows.Forms.TextBox();
			this.label2 = new System.Windows.Forms.Label();
			this.textBox_Balance = new System.Windows.Forms.TextBox();
			// 
			// mainMenu1
			// 
			this.mainMenu1.MenuItems.Add(this.menuItem_Save);
			this.mainMenu1.MenuItems.Add(this.menuItem_Cancel);
			// 
			// menuItem_Save
			// 
			this.menuItem_Save.Text = "Save";
			this.menuItem_Save.Click += new System.EventHandler(this.menuItem_Save_Click);
			// 
			// menuItem_Cancel
			// 
			this.menuItem_Cancel.Text = "Cancel";
			this.menuItem_Cancel.Click += new System.EventHandler(this.menuItem_Cancel_Click);
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(8, 8);
			this.label1.Size = new System.Drawing.Size(152, 22);
			this.label1.Text = "Account Name";
			// 
			// textBox_AcntName
			// 
			this.textBox_AcntName.Location = new System.Drawing.Point(8, 32);
			this.textBox_AcntName.Size = new System.Drawing.Size(152, 25);
			this.textBox_AcntName.Text = "";
			// 
			// label2
			// 
			this.label2.Location = new System.Drawing.Point(8, 64);
			this.label2.Size = new System.Drawing.Size(152, 22);
			this.label2.Text = "Current Balance";
			// 
			// textBox_Balance
			// 
			this.textBox_Balance.Location = new System.Drawing.Point(8, 88);
			this.textBox_Balance.Size = new System.Drawing.Size(152, 25);
			this.textBox_Balance.Text = "";
			// 
			// EditAccount
			// 
			this.Controls.Add(this.textBox_AcntName);
			this.Controls.Add(this.textBox_Balance);
			this.Controls.Add(this.label2);
			this.Controls.Add(this.label1);
			this.Menu = this.mainMenu1;
			this.Text = "EditAccount";
			this.Load += new System.EventHandler(this.EditAccount_Load);

		}
		#endregion

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

		private void menuItem_Save_Click(object sender, System.EventArgs e)
		{
			this.textBox_AcntName.Text=this.textBox_AcntName.Text.Trim();

			if(this.textBox_AcntName.Text.Trim().Length==0)
			{
				MessageBox.Show("Please input account name.","Error",MessageBoxButtons.OK,MessageBoxIcon.Exclamation,MessageBoxDefaultButton.Button1);
				return;
			}
			if(  !this.textBox_AcntName.Text.Equals(this.accountname) && Form1.db.GetAccountId(this.textBox_AcntName.Text)!=-1)
			{
				MessageBox.Show("The account name \""+this.textBox_AcntName.Text+"\" existed. Input another one.","Error",MessageBoxButtons.OK,MessageBoxIcon.Hand,MessageBoxDefaultButton.Button1);
				return;
			}
			try
			{
				double balance=System.Double.Parse(this.textBox_Balance.Text);
				balance=(System.Math.Ceiling(balance*100))/100;
				this.textBox_Balance.Text=""+balance;
			}
			catch(Exception)
			{
				MessageBox.Show("Invalid initial balance value.","Error",MessageBoxButtons.OK,MessageBoxIcon.Hand,MessageBoxDefaultButton.Button1);
				return;
			}
			Form1.db.SetBalance(Form1.db.GetAccountId(this.accountname),System.Double.Parse(this.textBox_Balance.Text));
			Form1.db.SetAccountName(this.accountname,this.textBox_AcntName.Text);
			this.Close();
		}

		private void EditAccount_Load(object sender, System.EventArgs e)
		{
			this.Text=this.accountname;
			this.textBox_AcntName.Text=this.accountname;
			this.textBox_Balance.Text=""+Form1.db.GetBalance(Form1.db.GetAccountId(this.accountname));
		}
	}
}