Hello.

I have a problem when I tried to watch the attribute table. The program show the following error "The field name 'alt_1' already exits in the Attribute Table. This field must be renamed before displaying the table. Do you wish ro rename the field to 'alt_1_1'?"

This attribute isn´t in the table previosly. The fields of the shapefile are created by me.

I am using C# for development and MapWindow GIS to visualize the attributes

I hope you can help me.

Thank you very much

You show no code so its impossible to see what you are doing.

AGP

Is perhaps the name of the field longer that 8 characters?
Field names are chopped of when saving the changes.

So 'Altitude_old' and 'Altitude_new' will result in twice 'Altitude'.
When the attribute table is opened this is checked and then your are prompted.

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Thanks for the reply but I haven´t another field with this name.
My code is as follows:

MapWinGIS.Table tTabla = new MapWinGIS.Table();
tTabla.StartEditingTable(null);
int iIndiceCampos = 1;

//Deployment
MapWinGIS.Field miCampo1 = new MapWinGIS.Field();
miCampo1.Name = "lugar";
miCampo1.Type = MapWinGIS.FieldType.STRING_FIELD;
miCampo1.Width = 15;
shp.EditInsertField(miCampo1, ref iIndiceCampos, null);
iIndiceCampos++;

//SensorStation
miCampo1.Name = "localiz";
miCampo1.Type = MapWinGIS.FieldType.STRING_FIELD;
miCampo1.Width = 20;
shp.EditInsertField(miCampo1, ref iIndiceCampos, null);
iIndiceCampos++;

//Radar
miCampo1.Name = "radar";
miCampo1.Type = MapWinGIS.FieldType.STRING_FIELD;
miCampo1.Width = 2;
shp.EditInsertField(miCampo1, ref iIndiceCampos, null);
iIndiceCampos++;

//TypeSensor
miCampo1.Name = "tipo_sens";
miCampo1.Type = MapWinGIS.FieldType.STRING_FIELD;
miCampo1.Width = 10;
shp.EditInsertField(miCampo1, ref iIndiceCampos, null);
iIndiceCampos++;

//TradeMark
miCampo1.Name = "marca";
miCampo1.Type = MapWinGIS.FieldType.STRING_FIELD;
miCampo1.Width = 10;
shp.EditInsertField(miCampo1, ref iIndiceCampos, null);
iIndiceCampos++;

//Model
miCampo1.Name = "modelo";
miCampo1.Type = MapWinGIS.FieldType.STRING_FIELD;
miCampo1.Width = 10;
shp.EditInsertField(miCampo1, ref iIndiceCampos, null);
iIndiceCampos++;

//Latitude
miCampo1.Name = "latitud";
miCampo1.Type = MapWinGIS.FieldType.STRING_FIELD;
miCampo1.Width = 10;
shp.EditInsertField(miCampo1, ref iIndiceCampos, null);
iIndiceCampos++;

//Longitude
miCampo1.Name = "longitud";
miCampo1.Type = MapWinGIS.FieldType.STRING_FIELD;
miCampo1.Width = 10;
shp.EditInsertField(miCampo1, ref iIndiceCampos, null);
iIndiceCampos++;

//Altitude
miCampo1.Name = "alt_1";
miCampo1.Type = MapWinGIS.FieldType.STRING_FIELD;
miCampo1.Width = 10;
shp.EditInsertField(miCampo1, ref iIndiceCampos, null);
miCampo1 = null;

I don´t know what happen.

Thank you very much