[英]Saving and screenshot [image] to a database
我正在嘗試將用戶打開的圖像目錄保存到數據庫中。 但符號“\\”不在路徑中。 它就像C:UsersAshleyDesktopScreenshot_1.png一樣,你可以看到它沒有\\
,這使它成為無效的路徑。
private void button1_Click(object sender, EventArgs e)
{
OpenFileDialog open = new OpenFileDialog();
if (open.ShowDialog() == DialogResult.OK)
{
pictureBox1.Image = Image.FromFile(open.FileName);
pictureBox2.Image = Image.FromFile(open.FileName);
MySQL.ExecuteNonQuery(@"UPDATE users SET profile_image_dir = '" + open.FileName + "' WHERE username = '" + User.Details.Username + "'");
MessageBox.Show(""+ open.FileName + "\r\n");
}
在MySQL.ExecuteNonQuery上我將它保存到數據庫中,它就像我之前展示的那樣
參數化查詢應該有效
string cmdText = @"UPDATE users SET profile_image_dir = @file
WHERE username = @uname";
using(MySqlConnection cn = new MySqlConnection(.....))
using(MySqlCommand cmd = new MySqlCommand(cmdText, cn))
{
cn.Open();
cmd.Parameters.AddWithValue("@file", open.FileName);
cmd.Parameters.AddWithValue("@uname", User.Details.Username);
cmd.ExecuteNonQuery();
}
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