www.pudn.com > C sharp和MapObjects实现.rar > frmBus.cs
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
namespace MainSystem
{
///
/// Summary description for frmBus.
///
public class frmBus : System.Windows.Forms.Form
{
private frmMain _frmMain;
private bool _bTextBox1 = true;
private bool _bTextBox2 = true;
private System.Windows.Forms.Label _label_end;
private System.Windows.Forms.Label _label_start;
private System.Windows.Forms.ListBox _listBox_end;
private System.Windows.Forms.ListBox _listBox_start;
private System.Windows.Forms.Button _button_search;
private System.Windows.Forms.TextBox _textBox_end;
private System.Windows.Forms.TextBox _textBox_start;
///
/// Required designer variable.
///
private System.ComponentModel.Container components = null;
public frmBus(frmMain frm)
{
_frmMain = frm;
InitializeComponent();
}
///
/// Clean up any resources being used.
///
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
///
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
///
private void InitializeComponent()
{
this._label_end = new System.Windows.Forms.Label();
this._label_start = new System.Windows.Forms.Label();
this._listBox_end = new System.Windows.Forms.ListBox();
this._listBox_start = new System.Windows.Forms.ListBox();
this._button_search = new System.Windows.Forms.Button();
this._textBox_end = new System.Windows.Forms.TextBox();
this._textBox_start = new System.Windows.Forms.TextBox();
this.SuspendLayout();
//
// _label_end
//
this._label_end.Font = new System.Drawing.Font("SimSun", 10F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
this._label_end.Location = new System.Drawing.Point(152, 8);
this._label_end.Name = "_label_end";
this._label_end.Size = new System.Drawing.Size(80, 16);
this._label_end.TabIndex = 14;
this._label_end.Text = "终点站:";
//
// _label_start
//
this._label_start.Font = new System.Drawing.Font("SimSun", 10F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
this._label_start.Location = new System.Drawing.Point(8, 8);
this._label_start.Name = "_label_start";
this._label_start.Size = new System.Drawing.Size(80, 16);
this._label_start.TabIndex = 13;
this._label_start.Text = "起点站:";
//
// _listBox_end
//
this._listBox_end.ItemHeight = 12;
this._listBox_end.Location = new System.Drawing.Point(152, 56);
this._listBox_end.Name = "_listBox_end";
this._listBox_end.Size = new System.Drawing.Size(128, 208);
this._listBox_end.TabIndex = 12;
this._listBox_end.MouseDown += new System.Windows.Forms.MouseEventHandler(this._listBox_end_MouseDown);
this._listBox_end.SelectedIndexChanged += new System.EventHandler(this._listBox_end_SelectedIndexChanged);
//
// _listBox_start
//
this._listBox_start.ItemHeight = 12;
this._listBox_start.Location = new System.Drawing.Point(8, 56);
this._listBox_start.Name = "_listBox_start";
this._listBox_start.Size = new System.Drawing.Size(128, 208);
this._listBox_start.TabIndex = 11;
this._listBox_start.MouseDown += new System.Windows.Forms.MouseEventHandler(this._listBox_start_MouseDown);
this._listBox_start.SelectedIndexChanged += new System.EventHandler(this._listBox_start_SelectedIndexChanged);
//
// _button_search
//
this._button_search.Location = new System.Drawing.Point(296, 24);
this._button_search.Name = "_button_search";
this._button_search.Size = new System.Drawing.Size(72, 24);
this._button_search.TabIndex = 10;
this._button_search.Text = "查询";
this._button_search.Click += new System.EventHandler(this._button_search_Click);
//
// _textBox_end
//
this._textBox_end.Location = new System.Drawing.Point(152, 24);
this._textBox_end.Name = "_textBox_end";
this._textBox_end.Size = new System.Drawing.Size(128, 21);
this._textBox_end.TabIndex = 9;
this._textBox_end.Text = "";
this._textBox_end.TextChanged += new System.EventHandler(this._textBox_end_TextChanged);
//
// _textBox_start
//
this._textBox_start.Location = new System.Drawing.Point(8, 24);
this._textBox_start.Name = "_textBox_start";
this._textBox_start.Size = new System.Drawing.Size(128, 21);
this._textBox_start.TabIndex = 8;
this._textBox_start.Text = "";
this._textBox_start.TextChanged += new System.EventHandler(this._textBox_start_TextChanged);
//
// frmBus
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(376, 273);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this._label_end,
this._label_start,
this._listBox_end,
this._listBox_start,
this._button_search,
this._textBox_end,
this._textBox_start});
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.SizableToolWindow;
this.Name = "frmBus";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "选择乘车路线";
this.Load += new System.EventHandler(this.frmBus_Load);
this.ResumeLayout(false);
}
#endregion
private void frmBus_Load(object sender, System.EventArgs e)
{
LoadListBox();
}
private void LoadListBox()
{
_listBox_start.DataSource = _frmMain._environment.m_dataSet.Tables["公交车站"];
_listBox_start.DisplayMember = "站名";
_listBox_end.DataSource = _frmMain._environment.m_dataSet.Tables["公交车站2"];
_listBox_end.DisplayMember = "站名";
}
private void _listBox_start_SelectedIndexChanged(object sender, System.EventArgs e)
{
if (!_bTextBox1)
this._textBox_start.Text = _listBox_start.Text;
}
private void _listBox_end_SelectedIndexChanged(object sender, System.EventArgs e)
{
if (!_bTextBox2)
this._textBox_end.Text = _listBox_end.Text;
}
private void _textBox_start_TextChanged(object sender, System.EventArgs e)
{
int nIndex = this._listBox_start.FindString(this._textBox_start.Text,-1);
if (nIndex != ListBox.NoMatches )
{
_listBox_start.SelectedIndex = nIndex;
}
if ((this._textBox_end.Text != "") && (this._textBox_start.Text != ""))
this._button_search.Enabled = true;
else
this._button_search.Enabled = false;
_bTextBox1 = true;
}
private void _textBox_end_TextChanged(object sender, System.EventArgs e)
{
int nIndex = this._listBox_end.FindString(this._textBox_end.Text,-1);
if (nIndex != ListBox.NoMatches )
{
_listBox_end.SelectedIndex = nIndex;
}
if (this._textBox_end.Text != "" && this._textBox_start.Text != "")
this._button_search.Enabled = true;
else
this._button_search.Enabled = false;
_bTextBox2 = true;
}
private void _listBox_start_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
_bTextBox1 = false;
}
private void _listBox_end_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
_bTextBox2 = false;
}
private void _button_search_Click(object sender, System.EventArgs e)
{
//判断站名的正确性
if (!IsValidStation(this._textBox_start.Text))
{
MessageBox.Show("错误的起始站名。","北京市地理信息公众查询系统",MessageBoxButtons.OK,MessageBoxIcon.Information);
return;
}
if (!IsValidStation(this._textBox_end.Text))
{
MessageBox.Show("错误的终点站名。","北京市地理信息公众查询系统",MessageBoxButtons.OK,MessageBoxIcon.Information);
return;
}
CEnvironment env = _frmMain._environment;
System.Windows.Forms.Cursor.Current = System.Windows.Forms.Cursors.WaitCursor;
ArrayList array = new ArrayList();
env.m_path.Search(this._textBox_start.Text,_textBox_end.Text,array);
System.Windows.Forms.Cursor.Current = System.Windows.Forms.Cursors.Arrow;
if (array.Count ==0)
{
MessageBox.Show("没有合适的乘车路线。","北京市地理信息公众查询系统",MessageBoxButtons.OK,MessageBoxIcon.Information);
return;
}
else
{
frmBusResult frm = new frmBusResult(this._frmMain,array);
this.Visible = false;
frm.ShowDialog(_frmMain);
this.Close();
}
}
private bool IsValidStation(string szStation)
{
System.Data.DataTable indexTbl = _frmMain._environment.m_dataSet.Tables["公交车站"];
System.Data.DataRow[] rowsType = indexTbl.Select("站名='"+szStation+"'");
if (rowsType.Length > 0)
return true;
return false;
}
}
}