Using DataTable as a Table Valued Parameter in EF Core 2.0

Question

[Updated problem description] We have a bulk import process for which we were passing IEnumerable as a Table Valued Parameter (TVP) to a St

Answer 1

The only possible error I could find in your code is the SqlParameter's TypeName. Yours is not fully qualified, I needed to include the schema, i.e. "dbo.".

I'm using EFCore 2.0.2 and EFCore.SqlServer 2.0.2

This is my code:

DataTable table = new DataTable();
table.Columns.Add(new DataColumn("FieldId", typeof(int)));
table.Columns.Add(new DataColumn("Value", typeof(double)));
foreach (Value v in NewRows)
{
    DataRow row = table.NewRow();
    row["FieldId"] = v.FieldId;
    row["Value"] = v.Value;
    table.Rows.Add(row);
}

var param = new SqlParameter("@replacementValues", table) { TypeName = "dbo.CustomSqlType", SqlDbType = SqlDbType.Structured };
await _dbContext.Database.ExecuteSqlCommandAsync("EXEC dbo.UpdateValues @replacementValues", param);