不自动显示ASP.NET Web表格gridview中的列的数据注释？

Question

I'm currently working in asp.net web forms 4.5.

I'm using gridview and gridview has a nice feature called autogenerate columns, and I'm trying to use it but there are some columns I don't want to show.

I know that I can set autogenerate column to false and call the columns for myself, but I was thinking if there is a feature such as data annotation on model, (I'm using database-first, by the way) and prevents the gridview from displaying.

The closest post I found is data annotations hide property/field but I don't think this applies to my case.

Thank you in advance!

Answer 1

In WebForms there is no simple tagging like in MVC to hide columns with data annotations. If you want to use autogenerate columns you can hide column in a data bound event using index of the column:

protected void gridView_DataBound(object sender, GridViewRowEventArgs e) 
{
    e.Row.Cells[index].Visible = false;
}

I would advise not to use auto generated columns, but to explicitly specify each column in the gridview. This way, you don't get any unexpected behavior in your GUI if your data source changes in the future.

Answer 2

If you've made a model with data annotations and you've given it a name that won't display in your gridview make sure you're setting the ItemType on the Gridview and pointing it towards you model. It will work just fine.