private void RadioButton_CheckedChanged(object sender, EventArgs e)
{
OleDbFeatureLayer oleDbFeatureLayer = (OleDbFeatureLayer)winformsMap1.FindFeatureLayer("OleDbLayer");
RadioButton radioButton = sender as RadioButton;
if (radioButton != null)
{
if (radioButton.Checked)
{
winformsMap1.Overlays["OleDbOverlay"].Lock.EnterWriteLock();
oleDbFeatureLayer.Open();
oleDbFeatureLayer.FeatureSource.GetAllFeatures(new string[] { "TG_ID", "TG_Wkb" });
oleDbFeatureLayer.Close();
winformsMap1.Overlays["OleDbOverlay"].Lock.ExitWriteLock();
winformsMap1.Refresh();
}
}
}
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
OleDbFeatureLayer oleDbFeatureLayer = (OleDbFeatureLayer)winformsMap1.FindFeatureLayer("OleDbLayer");
oleDbFeatureLayer.Open();
if (comboBox1.SelectedItem.ToString() == "GetCount")
{
oleDbFeatureLayer.FeatureSource.GetCount();
}
else if (comboBox1.SelectedItem.ToString() == "GetAllFeatures")
{
oleDbFeatureLayer.FeatureSource.GetAllFeatures(new string[] { "TG_ID", "TG_Wkb" });
}
else if (comboBox1.SelectedItem.ToString() == "GetFirstGeometryType")
{
((OleDbFeatureSource)oleDbFeatureLayer.FeatureSource).GetFirstGeometryType();
}
oleDbFeatureLayer.Close();
}
private void AddEventInOleDbFeatureLayer_Load(object sender, EventArgs e)
{
winformsMap1.MapUnit = GeographyUnit.DecimalDegree;
winformsMap1.CurrentExtent = ExtentHelper.GetDrawingExtent(new RectangleShape(-97.7612400054933, 30.2895641326905, -97.729482650757, 30.2669048309327), winformsMap1.Width, winformsMap1.Height);
winformsMap1.BackgroundOverlay.BackgroundBrush = new GeoSolidBrush(GeoColor.FromArgb(255, 233, 232, 214));
string connectString = string.Format(CultureInfo.InvariantCulture, "Provider=Microsoft.Jet.OLEDB.4.0; Data Source='{0}'", Samples.RootDirectory + @"Data\Austinstreets.mdb");
OleDbFeatureLayer oleDbFeatureLayer = new OleDbFeatureLayer("Austinstreets", "TG_ID", "TG_Wkb", connectString);
((OleDbFeatureSource)oleDbFeatureLayer.FeatureSource).ExecutingSqlStatement += new EventHandler <ExecutingSqlStatemenOleDbFeatureSourceEventArgs>(OleDbFeature_ExecutingSqlStatement);
oleDbFeatureLayer.ZoomLevelSet.ZoomLevel01.CustomStyles.Add(LineStyles.LocalRoad2);
oleDbFeatureLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
LayerOverlay staticOverlay = new LayerOverlay();
staticOverlay.Layers.Add("OleDbLayer", oleDbFeatureLayer);
winformsMap1.Overlays.Add("OleDbOverlay", staticOverlay);
winformsMap1.Refresh();
}
