本人在ArcEngine里通过如下代码调出Coordinate System属性窗口（如图1），对坐标投影进行修改按确定后，本人怎么可以获取到修改后的投影？
代码如下：
void CoordinateSystem(ILayer pLayer)
{
try
{
//IMap pMap = new MapClass();
//pMap.AddLayer(pLayer);
IComPropertySheet PSheet = new ComPropertySheetClass();
PSheet.HideHelpButton = true;
ESRI.ArcGIS.esriSystem.ISet PSet = new ESRI.ArcGIS.esriSystem.SetClass();
//PSet.Add(pMap);
PSet.Add(pLayer);
PSheet.ClearCategoryIDs();
PSheet.AddCategoryID(new UIDClass());
IPropertyPage APage = null;
#region 数据框属性
APage = new ESRI.ArcGIS.CartoUI.MapProjectionPropPageClass();//坐标系
PSheet.AddPage(APage);
#endregion
PSheet.Title = “空间参考属性”;
//假设已经修改了内容，则更新地图
if (PSheet.EditProperties(PSet, 0))
{
ISpatialReference pSpatialRef = ArcGIS.Feature.GetSpatialReference(((IFeatureLayer)pLayer).FeatureClass);
string proName = pSpatialRef.Name;
}
}
catch (Exception ex)
{
}
}
图1如下：
代码如下：
void CoordinateSystem(ILayer pLayer)
{
try
{
//IMap pMap = new MapClass();
//pMap.AddLayer(pLayer);
IComPropertySheet PSheet = new ComPropertySheetClass();
PSheet.HideHelpButton = true;
ESRI.ArcGIS.esriSystem.ISet PSet = new ESRI.ArcGIS.esriSystem.SetClass();
//PSet.Add(pMap);
PSet.Add(pLayer);
PSheet.ClearCategoryIDs();
PSheet.AddCategoryID(new UIDClass());
IPropertyPage APage = null;
#region 数据框属性
APage = new ESRI.ArcGIS.CartoUI.MapProjectionPropPageClass();//坐标系
PSheet.AddPage(APage);
#endregion
PSheet.Title = “空间参考属性”;
//假设已经修改了内容，则更新地图
if (PSheet.EditProperties(PSet, 0))
{
ISpatialReference pSpatialRef = ArcGIS.Feature.GetSpatialReference(((IFeatureLayer)pLayer).FeatureClass);
string proName = pSpatialRef.Name;
}
}
catch (Exception ex)
{
}
}
图1如下：
解决方案
20
private bool SetupFeaturePropertySheet(ILayer layer)
{
if (layer == null) return false;
ESRI.ArcGIS.Framework.IComPropertySheet pComPropSheet;
pComPropSheet = new ESRI.ArcGIS.Framework.ComPropertySheet();
pComPropSheet.Title = layer.Name + " - 属性";
ESRI.ArcGIS.esriSystem.UID pPPUID = new ESRI.ArcGIS.esriSystem.UIDClass();
pComPropSheet.AddCategoryID(pPPUID);
// General....
ESRI.ArcGIS.Framework.IPropertyPage pGenPage = new ESRI.ArcGIS.CartoUI.GeneralLayerPropPageClass();
pComPropSheet.AddPage(pGenPage);
// Source
ESRI.ArcGIS.Framework.IPropertyPage pSrcPage = new ESRI.ArcGIS.CartoUI.FeatureLayerSourcePropertyPageClass();
pComPropSheet.AddPage(pSrcPage);
// Selection...
ESRI.ArcGIS.Framework.IPropertyPage pSelectPage = new ESRI.ArcGIS.CartoUI.FeatureLayerSelectionPropertyPageClass();
pComPropSheet.AddPage(pSelectPage);
// Display....
ESRI.ArcGIS.Framework.IPropertyPage pDispPage = new ESRI.ArcGIS.CartoUI.FeatureLayerDisplayPropertyPageClass();
pComPropSheet.AddPage(pDispPage);
// Symbology....
ESRI.ArcGIS.Framework.IPropertyPage pDrawPage = new ESRI.ArcGIS.CartoUI.LayerDrawingPropertyPageClass();
pComPropSheet.AddPage(pDrawPage);
// Fields...
ESRI.ArcGIS.Framework.IPropertyPage pFieldsPage = new ESRI.ArcGIS.CartoUI.LayerFieldsPropertyPageClass();
pComPropSheet.AddPage(pFieldsPage);
// Definition Query...
ESRI.ArcGIS.Framework.IPropertyPage pQueryPage = new ESRI.ArcGIS.CartoUI.LayerDefinitionQueryPropertyPageClass();
pComPropSheet.AddPage(pQueryPage);
// Labels....
ESRI.ArcGIS.Framework.IPropertyPage pSelPage = new ESRI.ArcGIS.CartoUI.LayerLabelsPropertyPageClass();
pComPropSheet.AddPage(pSelPage);
// Joins & Relates....
ESRI.ArcGIS.Framework.IPropertyPage pJoinPage = new ESRI.ArcGIS.ArcMapUI.JoinRelatePageClass();
pComPropSheet.AddPage(pJoinPage);
// Setup layer link
ESRI.ArcGIS.esriSystem.ISet pMySet = new ESRI.ArcGIS.esriSystem.SetClass();
pMySet.Add(layer);
pMySet.Reset();
// make the symbology tab active
pComPropSheet.ActivePage = 4;
// show the property sheet
bool bOK = pComPropSheet.EditProperties(pMySet, 0);
m_activeView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, m_activeView.Extent);
return (bOK);
}
这个是在网上找的代码， 假如要修改坐标系应该是相似的过程，并不需要得到用户选择了哪个，直接EditProperties就好
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