private Boolean FieldsCheck(string shapeFilePath, params string[] targetField)
{
_shapeOp.FilePath = shapeFilePath;
IFeatureClass pFeatureClass = _shapeOp.OpenFeatureClass();
return(pFeatureClass.FieldExistCheck(targetField));
}
public void AddField(IFeatureClass pFeatureClass,string fieldName,esriFieldType fieldType)
{
//如果存在不必添加字段，直接返回
if (pFeatureClass.FieldExistCheck(fieldName)) return;
var pField = new FieldClass();
var pFieldEdit = (IFieldEdit)pField;
pFieldEdit.Name_2 = fieldName;
pFieldEdit.Type_2 = fieldType;
pFeatureClass.AddField(pFieldEdit);
}
public void AddField(IFeatureClass pFeatureClass, string fieldName, esriFieldType fieldType)
{
//如果存在不必添加字段，直接返回
if (pFeatureClass.FieldExistCheck(fieldName))
{
return;
}
var pField = new FieldClass();
var pFieldEdit = (IFieldEdit)pField;
pFieldEdit.Name_2 = fieldName;
pFieldEdit.Type_2 = fieldType;
pFeatureClass.AddField(pFieldEdit);
}
/// <summary>
/// 检查所给的字段不为空
/// </summary>
/// <param name="pFeatureClass"></param>
/// <param name="fields"></param>
/// <returns></returns>
public static bool NotNullCheck(this IFeatureClass pFeatureClass, params string[] fields)
{
if (!pFeatureClass.FieldExistCheck(fields))
{
return(false);
}
var fieldsIndex = pFeatureClass.FieldsIndex(fields);
IFeatureCursor pFeatureCursor = pFeatureClass.Search(null, false);
IFeature pFeature;
bool flag = true;
var indices = fieldsIndex as int[] ?? fieldsIndex.ToArray();
while ((pFeature = pFeatureCursor.NextFeature()) != null)
{
if (!indices.Any(index => pFeature.Value[index] == null))
{
continue;
}
flag = false;
break;
}
Marshal.ReleaseComObject(pFeatureCursor);
return(flag);
}
/// <summary>
/// 判断要素类的字段是否存在
/// </summary>
/// <param name="pFeatureClass">要素类</param>
/// <param name="fields">字段集合</param>
/// <returns>是否存在</returns>
public static bool FieldExistCheck(this IFeatureClass pFeatureClass, IEnumerable <string> fields)
{
return(pFeatureClass.FieldExistCheck(fields.ToArray()));
}
