How to add a field in featureclass by using C# winform,arcobjects?

It means when we click on command winform should open and afetr field entries it should be add in to table.

  • Can you please post some code to show where you're stuck. You can use Windows Forms to access ArcObjects, either as an add-in or a standalone program (I would need to know which one it is) also, is it a local dataset or do you intend to do this over a web interface? Nov 24, 2014 at 23:19

1 Answer 1


The following function will add a field to a feature class:

private void AddField(IFeatureClass fClass, string name, string alias, esriFieldType dataType)
    IField newField = new FieldClass();
    IFieldEdit fieldEdit = (IFieldEdit)newField;
    fieldEdit.Name_2 = name;
    fieldEdit.AliasName_2 = alias;
    fieldEdit.Type_2 = dataType;


There are, of course, more properties that can be set on the field, this is just a sample of how to set them - the properties ending '_2' on IFieldEdit are the writable ones.

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