public moField Clone()
{
moField sField = new moField(_Name, _ValueType);
sField._AliasName = _AliasName;
sField._Length = _Length;
return(sField);
}
public void RemoveAt(Int32 index)
{
moField sField = _Fields[index];
_Fields.RemoveAt(index);
if (FieldRemoved != null)
{
FieldRemoved(this, index, sField);
}
}
private void _AttributeFileds_FieldRemoved(object sender, int fieldIndex, moField fieldRemoved)
{
Int32 sFeatureCount = _Features.Count;
for (Int32 i = 0; i < sFeatureCount; i++)
{
moFeature sFeature = _Features.GetItem(i);
sFeature.Attributes.RemoveAt(fieldIndex);
}
}
public void Append(moField field)
{
if (FindField(field.Name) >= 0)
{
throw new Exception("Fields对象中不能存在重名的字段！");
}
_Fields.Add(field);
//触发事件，广播
if (FieldAppended != null)
{
FieldAppended(this, field);
}
}
private moFeature CreateNewFeature()
{
moAttributes sAttributes = new moAttributes();
Int32 sFieldCount = _AttributeFields.Count;
for (Int32 i = 0; i <= sFieldCount - 1; i++)
{
moField sField = _AttributeFields.GetItem(i);
if (sField.ValueType == moValueTypeConstant.dInt16)
{
Int16 sValue = 0;
sAttributes.Append(sValue);
}
else if (sField.ValueType == moValueTypeConstant.dInt32)
{
Int32 sValue = 0;
sAttributes.Append(sValue);
}
else if (sField.ValueType == moValueTypeConstant.dInt64)
{
Int64 sValue = 0;
sAttributes.Append(sValue);
}
else if (sField.ValueType == moValueTypeConstant.dSingle)
{
float sValue = 0;
sAttributes.Append(sValue);
}
else if (sField.ValueType == moValueTypeConstant.dDouble)
{
double sValue = 0;
sAttributes.Append(sValue);
}
else if (sField.ValueType == moValueTypeConstant.dText)
{
String sValue = "";
sAttributes.Append(sValue);
}
else
{
throw new Exception("Invalid value type!");
}
}
moFeature sFeature = new moFeature(_ShapeType, null, sAttributes);
return(sFeature);
}
private void _AttributeFileds_FieldAppended(object sender, moField fieldAppended)
{
Int32 sFeatureCount = _Features.Count;
for (Int32 i = 0; i <= sFeatureCount - 1; i++)
{
moFeature sFeature = _Features.GetItem(i);
if (fieldAppended.ValueType == moValueTypeConstant.dInt16)
{
Int16 sValue = 0;
sFeature.Attributes.Append(sValue);
}
else if (fieldAppended.ValueType == moValueTypeConstant.dInt32)
{
Int32 sValue = 0;
sFeature.Attributes.Append(sValue);
}
else if (fieldAppended.ValueType == moValueTypeConstant.dInt64)
{
Int64 sValue = 0;
sFeature.Attributes.Append(sValue);
}
else if (fieldAppended.ValueType == moValueTypeConstant.dSingle)
{
float sValue = 0;
sFeature.Attributes.Append(sValue);
}
else if (fieldAppended.ValueType == moValueTypeConstant.dDouble)
{
double sValue = 0;
sFeature.Attributes.Append(sValue);
}
else if (fieldAppended.ValueType == moValueTypeConstant.dText)
{
string sValue = string.Empty;
sFeature.Attributes.Append(sValue);
}
else
{
throw new Exception("Invalid field value type!");
}
}
}
