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我有一個非常基本的形式,只有一個圖片框,一個文本框和一個按鈕。我在Oracle中創建了一個表來存儲一個blob,我想在c#中將該圖像加載到一個圖片框中,一旦點擊該按鈕。這是我迄今爲止所寫的內容。使用Oracle Blob在C#中加載Picturebox
我的圖片框名稱=「picBoxXray」。我的文本框名稱=「txtXrayId」。我的按鈕名稱=「btnGetXrayID」。我的表名是「XRay」。
private void btnGetXrayID_Click(object sender, EventArgs e)
{
if (txtXrayId.Text == "")
{
MessageBox.Show("XrayID be entered");
}
if (picBoxXray.Image != null)
{
picBoxXray.Image.Dispose();
}
string connectionString = GetConnectionString();
using (OracleConnection connection = new OracleConnection())
{
connection.ConnectionString = connectionString;
connection.Open();
Console.WriteLine("State: {0}", connection.State);
Console.WriteLine("ConnectionString: {0}",
connection.ConnectionString);
OracleCommand command = connection.CreateCommand();
string sql = "SELECT * FROM XRay WHERE XrayID =" + txtXrayId.Text;
OracleCommand cmd = new OracleCommand(sql, connection);
OracleDataReader dr = cmd.ExecuteReader();
cmd.CommandType = CommandType.Text;
dr = cmd.ExecuteReader();
while (dr.Read())
{
// Obtain the image
//Need code
}
command.CommandText = sql;
command.ExecuteNonQuery();
connection.Close();
}
任何幫助將大大aprreciated, 感謝