SQLServer數據庫:獲取列標題(字段名)

寫數據庫之前最好先查看數據庫字段名是否存在，否則很容易出現(xiàn)寫數據庫失敗。

SqlConnection?^SqlServer_con;			//SqlServer

		Form1(void)
		{
			InitializeComponent();
			//
			//TODO:?在此處添加構造函數代碼
			//

			
			this->SqlServer_con?=?gcnew?SqlConnection();
			//this->SqlServer_con->ConnectionString?=?"server=(local);database=temp;uid=sa;pwd=!QAZ@WSX#EDC";
			this->SqlServer_con->ConnectionString?=?"server=(local);database=test;uid=sa;pwd=123456";
			try
			{
				this->SqlServer_con->Open();
			}
			catch?(System::Exception^?e)
			{
				System::Windows::Forms::MessageBox::Show("鏈接數據庫失敗!",?"錯誤",?System::Windows::Forms::MessageBoxButtons::OK,
					System::Windows::Forms::MessageBoxIcon::Error);
				return;
			}

			SqlCommand?^SqlServer_cmd;			//SqlServer
			SqlDataReader?^reader;

			try
			{
				SqlServer_cmd?=?gcnew?SqlCommand("SELECT?TOP?1?*?FROM?[sl651_2014]",?this->SqlServer_con);			//SqlServer
				reader?=?SqlServer_cmd->ExecuteReader();
				for?(int?i?=?0;?i?<?reader->FieldCount;i?++)
				{
					this->textBox1->Text?+=?""+(i+1)+"t"+reader->GetName(i)->ToString()+"rn";
				}
			}
			catch?(System::Exception^?e)
			{

			}

			reader->Close();
			this->SqlServer_con->Close();
		}

使用 reader->GetName(i)即可獲取到指定列的字段名稱
reader->FieldCount即為列數量