我怎么能够把插头放在var(最大)一栏?
I m havig trouble in the convertion process i m doing this:
cmd.CommandText = "Insert into " + bdcombo.Text + ".dbo.nomes (id, nome) values (@id, @nome)";
cmd.CommandType = CommandType.Text;
cmd.Connection = sqlcon;
cmd.Parameters.Add("@nome", SqlDbType.VarBinary, 20).Value = Convert.ToSByte(textBox1.Text);
如果你想储存地块,使用[n]varchar(max)。
如果您must使用varbinary(max)的话,那么你必须使用编码,例如:
byte[] theBytes = Encoding.UTF8.GetBytes(theString);
and later:
string theString = Encoding.UTF8.GetString(theBytes);
(阅读时)
What is the use of default keyword in C#? Is it introduced in C# 3.0 ?
I m the only developer in my company, and am getting along well as an autodidact, but I know I m missing out on the education one gets from working with and having code reviewed by more senior devs. ...
I m pretty new to the Objective-C world and I have a long history with .net/C# so naturally I m inclined to use my C# wits. Now here s the question: I feel really inclined to create some type of ...
I cannot figure out how to marshal a C++ CBitmap to a C# Bitmap or Image class. My import looks like this: [DllImport(@"test.dll", CharSet = CharSet.Unicode)] public static extern IntPtr ...
I have two EF entities. One has a property called HouseNumber. The other has two properties, one called StartHouseNumber and one called EndHouseNumber. I want to create a many to many association ...
How to user GhostScript DLL to convert PDF to PDF/A. I know I kind of have to call the exported function of gsdll32.dll whose name is gsapi_init_with_args, but how do i pass the right arguments? BTW, ...
Since I cannot order my dictionary, what is the best way of going about taking key value pairs and also maintaing an index?
Maybe it s something I m doing wrong. I m just learning Linq because I m bored. And so far so good. I made a little program and it basically just outputs all matches (foreach) into a label control. ...