推漫(超能力女儿):
开始喔:
IFeatureLayer featureLayer=你要获取唯一值的图层
//存储唯一值字段
List<string> myValueList = new List<string>();
#region//获取唯一值字段
//数据统计
IDataStatistics dataStatistics = new DataStatisticsClass();
//设置统计字段
dataStatistics.Field = fieldName;
//获取所有
dataStatistics.Cursor = (ICursor)featureLayer.FeatureClass.Search(null, false);
IEnumerator myEnumerator = dataStatistics.UniqueValues;
//获取该字段的唯一值字段
myEnumerator.Reset();
while (myEnumerator.MoveNext())
{
if (!myValueList.Contains(myEnumerator.Current.ToString()))
{
myValueList.Add(myEnumerator.Current.ToString());
}
}
//指针释放(用完释放,养成良好习惯哈)
System.Runtime.InteropServices.Marshal.ReleaseComObject(dataStatistics);
#endregion
结束呦。