www.pudn.com > C sharp和MapObjects实现.rar > frmLine.cs
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
namespace MainSystem
{
///
/// Summary description for frmLine.
///
public class frmLine : System.Windows.Forms.Form
{
private frmMain _frmMain = null;
private string _szLineName = "";
private System.Windows.Forms.Label _label_transfline;
private System.Windows.Forms.Label _label_Sta;
private System.Windows.Forms.ListBox _listBox_Line;
private System.Windows.Forms.ListBox _listBox_sta;
private System.Windows.Forms.Label _label_line;
///
/// Required designer variable.
///
private System.ComponentModel.Container components = null;
public frmLine(frmMain frmMain,string szLineName)
{
_frmMain = frmMain;
_szLineName = szLineName;
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_transfline = new System.Windows.Forms.Label();
this._label_Sta = new System.Windows.Forms.Label();
this._listBox_Line = new System.Windows.Forms.ListBox();
this._listBox_sta = new System.Windows.Forms.ListBox();
this._label_line = new System.Windows.Forms.Label();
this.SuspendLayout();
//
// _label_transfline
//
this._label_transfline.Font = new System.Drawing.Font("SimSun", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
this._label_transfline.Location = new System.Drawing.Point(160, 32);
this._label_transfline.Name = "_label_transfline";
this._label_transfline.Size = new System.Drawing.Size(128, 16);
this._label_transfline.TabIndex = 9;
this._label_transfline.Text = "在此站可转的车:";
//
// _label_Sta
//
this._label_Sta.Font = new System.Drawing.Font("SimSun", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
this._label_Sta.Location = new System.Drawing.Point(8, 32);
this._label_Sta.Name = "_label_Sta";
this._label_Sta.Size = new System.Drawing.Size(128, 16);
this._label_Sta.TabIndex = 8;
this._label_Sta.Text = "经过的公交车站:";
//
// _listBox_Line
//
this._listBox_Line.ItemHeight = 12;
this._listBox_Line.Location = new System.Drawing.Point(160, 48);
this._listBox_Line.Name = "_listBox_Line";
this._listBox_Line.Size = new System.Drawing.Size(128, 196);
this._listBox_Line.TabIndex = 7;
//
// _listBox_sta
//
this._listBox_sta.ItemHeight = 12;
this._listBox_sta.Location = new System.Drawing.Point(8, 48);
this._listBox_sta.Name = "_listBox_sta";
this._listBox_sta.Size = new System.Drawing.Size(144, 196);
this._listBox_sta.TabIndex = 6;
this._listBox_sta.DoubleClick += new System.EventHandler(this._listBox_sta_DoubleClick);
this._listBox_sta.SelectedIndexChanged += new System.EventHandler(this._listBox_sta_SelectedIndexChanged);
//
// _label_line
//
this._label_line.Font = new System.Drawing.Font("SimSun", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
this._label_line.Location = new System.Drawing.Point(8, 8);
this._label_line.Name = "_label_line";
this._label_line.Size = new System.Drawing.Size(248, 24);
this._label_line.TabIndex = 5;
this._label_line.Text = "公交路线:";
//
// frmLine
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(296, 253);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this._label_transfline,
this._label_Sta,
this._listBox_Line,
this._listBox_sta,
this._label_line});
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.SizableToolWindow;
this.MaximizeBox = false;
this.MinimizeBox = false;
this.Name = "frmLine";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "公交路线信息";
this.TopMost = true;
this.Load += new System.EventHandler(this.frmLine_Load);
this.ResumeLayout(false);
}
#endregion
private void _listBox_sta_DoubleClick(object sender, System.EventArgs e)
{
string szName = _listBox_sta.Text;
string szLayer = _frmMain._environment.GetLayerName(szName,"地名索引");
string szTable = _frmMain._environment.GetTableName(szName,"地名索引");
int nIndex = _frmMain._environment.GetLayerIndexByName(szTable);
if (nIndex < 0)
return;
MapObjects2.Recordset rs;
rs = _frmMain._environment.m_layerInfos[nIndex].layer.SearchExpression("名称 like '"+szName +"'");
if (rs != null)
{
rs.MoveFirst();
if (!rs.EOF)
{
MapObjects2.Point pt = (MapObjects2.Point)rs.Fields.Item("shape").Value;
if (!_frmMain.IsWithin(_frmMain._map.Extent, pt))
{
_frmMain._map.CenterAt(pt.X,pt.Y );
}
if (_frmMain._environment.m_layerInfos[nIndex].nCharacterIndex >= 0 && _frmMain._environment.m_layerInfos[nIndex].layer.shapeType == MapObjects2.ShapeTypeConstants.moShapeTypePoint )
{
_frmMain._environment.m_selectedSymbol = new MapObjects2.Symbol();
_frmMain._environment.m_selectedSymbol.SymbolType = MapObjects2.SymbolTypeConstants.moPointSymbol;
_frmMain._environment.m_selectedSymbol.Font.Name = _frmMain._environment.m_layerInfos[nIndex].szFontName;
_frmMain._environment.m_selectedSymbol.Style = 4;
_frmMain._environment.m_selectedSymbol.Size = (short)_frmMain._environment.m_layerInfos[nIndex].nSymSize;
_frmMain._environment.m_selectedSymbol.CharacterIndex = (short)_frmMain._environment.m_layerInfos[nIndex].nCharacterIndex;
_frmMain._environment.m_selectedSymbol.Color = 0xff;
}
else
_frmMain._environment.m_selectedSymbol = null;
_frmMain._environment.m_selectedFeature = rs.Fields.Item("shape").Value;
_frmMain._map.FlashShape(_frmMain._environment.m_selectedFeature, 4);
_frmMain._map.Extent = _frmMain._map.Extent;
}
}
}
private void frmLine_Load(object sender, System.EventArgs e)
{
this._label_line.Text = "线路名称:"+_szLineName;
LoadStationListBox();
}
private void LoadStationListBox()
{
this._listBox_sta.Items.Clear();
if ("" == _szLineName)
return ;
System.Data.DataTable typeTbl = this._frmMain._environment.m_dataSet.Tables["公交车站路线"];
System.Data.DataRow[] rowstypes = typeTbl.Select("线路名='"+_szLineName+"'","顺序");
int nIndex = 1;
foreach (System.Data.DataRow myRow in rowstypes)
{
this._listBox_sta.Items.Add(myRow["站名"]);
nIndex ++;
}
}
private void _listBox_sta_SelectedIndexChanged(object sender, System.EventArgs e)
{
if (_listBox_sta.Text != "")
LoadLineList(_listBox_sta.Text);
}
private void LoadLineList(string szStaName)
{
if ("" == szStaName)
return ;
this._listBox_Line.Items.Clear();
System.Data.DataTable typeTbl = this._frmMain._environment.m_dataSet.Tables["公交车站路线"];
string szFilter = "站名='"+szStaName+"'";
if (_frmMain._environment.m_szBusFilter != "")
{
szFilter += " And ";
szFilter += _frmMain._environment.m_szBusFilter;
}
System.Data.DataRow[] rowstypes = typeTbl.Select(szFilter);
foreach (System.Data.DataRow myRow in rowstypes)
{
this._listBox_Line.Items.Add(myRow["线路名"]);
}
}
}
}