I am new to using the ADO.NET Entity Data Model tool. I 开发者_如何学JAVAhave a table in my database that has three properties (FirstName, LastName, Age). I need to add a field to this entity called I
I am trying update my table from c# ado.net with this function.I am using for update processstored prosedure in access db.Everything working fine in MS Access side.Giving parameters to access and its
I have a DataGridView that is populated from a DataSet. How can I change any cell i开发者_开发技巧n the DataGridView, and have this change the DataSet too (and the Database).
How do you handle the case when an entity needs to create, in one of its methods, other entities? My problem is that since each individual entity doesn\'t have access ObjectContext object, that one wi
I am not sure why IQuerable limits me when I try to search database for data containing string from an array.
Am trying to run a C# application which fetches data from PostgreSQL database(8.4) and am using the PostgreSQL OLE DB Provider
Since LINQ to SQL basically is a layer on top of ADO.NET it requir开发者_StackOverflow中文版es some translation. Does this mean that using ADO.NET directly is faster than LINQ? Or is the difference so
Why is SqlInt32.Null not considered a compile-ti开发者_开发知识库me constant? Because I cant use it as the default value of a default parameter.SqlInt32.Null is a static readonly field, not a constant
Does anyone know how to get the Microsoft OracleClient Provider to support binding parameters by position, currently it d开发者_运维百科oes that only by Name and there does not seem to be any option t
If I have something like this: using( SqlCommand sqlCmd = CreateSqlCommand( \"load_collection_get\", false ) )
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