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Change length in a Contact field



I need to change the max length for a field in Contact. The field is a string...

I tested this.

using (MetaClassManagerEditScope scope = DataContext.Current.MetaModel.BeginEdit("Contact", AccessLevel.System))
                MetaFieldCollection fields = DataContext.Current.MetaModel.MetaClasses["Contact"].Fields;
                var fieldToChange = fields["MyField"];
                fieldToChange.Attributes["MyField"] = 4000;

But didnt work. Checked the field in DB in table cls_Contact and the length is the same as before.

Do I must to change it manually?

Nov 17, 2019 10:47

I think you can use only the registered type and it might not be possible to update the lenght.

Here you can see meta field type meta information


What if you manually update in DB? Is that working?

Nov 17, 2019 18:33
Juan Munoz - Nov 18, 2019 8:59
Yes, I could change it direct in to DB, but I guessing that is better to do it with code...

The "correct" attribute name is McDataTypeAttribute.StringMaxLength, however I think that can only be applied when you create a new metafield. Once you created the field you can't just change the length of the column 

Nov 18, 2019 10:13
Juan Munoz - Nov 18, 2019 10:55
Yes, sorry It was misspelled.
fieldToChange.Attributes[McDataTypeAttribute.StringMaxLength] = 4000
I change direct in DB, it did work... But i will not recommend that, becouse the cls_Contact table has some dependency to other table...
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