QueryFilter.SubFields的使用例子

/// <summary>
/// 获得Feature
/// </summary>
/// <param name="pLineLayer"></param>
/// <param name="FID"></param>
/// <returns></returns>
private string GetFeatureByFID(IFeatureClass pFeatureClass, int FID)
{

IQueryFilter pQueryFilter = new QueryFilterClass();
pQueryFilter.WhereClause = pFeatureClass.OIDFieldName + "=" + FID;
pQueryFilter.SubFields = "BSM";
IFeatureCursor pFeatureCursor = pFeatureClass.Search(pQueryFilter, true);
try
{
return pFeatureCursor.NextFeature().get_Value(0).ToString();
}
finally
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(pFeatureCursor);
System.Runtime.InteropServices.Marshal.ReleaseComObject(pQueryFilter);
}
}