C#编写代码用OpenFileDialog打开要素文件,并将要素文件的要素保存在一个featureClass中,不能使用ShapefileWorkspaceFactory和OleDbWorkspaceFactory和ESRI.ArcGIS.DataSourcesFile.ShapefileWorkspaceFactoryClass
时间: 2024-03-22 18:42:41 浏览: 54
OpenFileDialog(C#)
4星 · 用户满意度95%
好的,这个问题我可以回答。你可以使用ESRI.ArcGIS.Geodatabase.IWorkspaceFactory接口中的FileGDBWorkspaceFactoryClass类,来打开要素文件并将要素保存在featureClass中。
下面是C#代码示例:
```csharp
// 初始化OpenFileDialog
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.Filter = "要素文件 (*.shp)|*.shp";
if (openFileDialog.ShowDialog() != DialogResult.OK) return;
// 获取要素文件路径
string filePath = openFileDialog.FileName;
// 打开要素文件工作空间
ESRI.ArcGIS.Geodatabase.IWorkspaceFactory workspaceFactory = new ESRI.ArcGIS.DataSourcesFile.FileGDBWorkspaceFactoryClass();
ESRI.ArcGIS.Geodatabase.IWorkspace workspace = workspaceFactory.OpenFromFile(System.IO.Path.GetDirectoryName(filePath), 0);
// 打开要素类
ESRI.ArcGIS.Geodatabase.IFeatureWorkspace featureWorkspace = (ESRI.ArcGIS.Geodatabase.IFeatureWorkspace)workspace;
ESRI.ArcGIS.Geodatabase.IFeatureClass featureClass = featureWorkspace.OpenFeatureClass(System.IO.Path.GetFileNameWithoutExtension(filePath));
// 遍历要素并输出
ESRI.ArcGIS.Geodatabase.IFeatureCursor featureCursor = featureClass.Search(null, false);
ESRI.ArcGIS.Geodatabase.IFeature feature = null;
while ((feature = featureCursor.NextFeature()) != null)
{
// TODO: 在这里进行要素处理
}
// 释放资源
System.Runtime.InteropServices.Marshal.ReleaseComObject(featureCursor);
System.Runtime.InteropServices.Marshal.ReleaseComObject(featureClass);
System.Runtime.InteropServices.Marshal.ReleaseComObject(featureWorkspace);
System.Runtime.InteropServices.Marshal.ReleaseComObject(workspace);
```
在这个示例中,我们使用了FileGDBWorkspaceFactoryClass类来打开要素文件工作空间,然后使用IWorkspace接口和IWorkspaceFactory接口来打开要素类。最后,我们遍历要素并进行处理。注意,当使用完COM对象后,我们需要显式地释放资源,以确保这些对象被正确释放。
希望这个答案能够帮到你!
阅读全文