[英]C# WPF Show Image from Mysql
i'm a student and i am bad at programing. 我是一个学生,我编程不好。 I saved the images in my mysql database for each player.
我将图像保存在每个播放器的mysql数据库中。 I created a program where I can list some soccer players from my database.
我创建了一个程序,可以从数据库中列出一些足球运动员。 When i click on a listed player in datagrid, a new window appears with the information about the player.
当我单击datagrid中列出的播放器时,会出现一个新窗口,其中包含有关播放器的信息。 Everything works, but now i want a picture of the selected player to be displayed on the information window from the database.
一切正常,但是现在我希望所选播放器的图片从数据库显示在信息窗口中。 Can anybody help me?
有谁能够帮助我? My english is not the best (i'm 17) so i hope you can understand what i mean.
我的英语不是最好的(我17岁),所以我希望你能理解我的意思。
This is what i tried to do but i don't know how to continue. 这是我试图做的,但我不知道如何继续。 PS.
PS。 It's in WPF.
在WPF中。
MySqlCommand cmd = new MySqlCommand("SELECT Bilder FROM spieler WHERE Bilder='{8}'");
MySqlDataReader rdr1 = cmd.ExecuteReader();
try
{
conn.Open();
while (rdr1.Read())
{
// image1... I don't know what to write here
}
}
catch (Exception ex)
{
MessageBox.Show("Fehler: " + ex);
}
rdr1.Close()
Just get it using a byte[]
casting beforehand: 只需使用
byte[]
强制转换即可获取它:
while (rdr1.Read())
{
byte[] data = (byte[])reader[0]; // 0 is okay if you only selecting one column
//And use:
using (System.IO.MemoryStream ms = new System.IO.MemoryStream(data))
{
Image image = new Bitmap(ms);
}
}
UPDATE: In WPF, use the BitmapImage
: 更新:在WPF中,使用
BitmapImage
:
using (System.IO.MemoryStream ms = new System.IO.MemoryStream(data))
{
var imageSource = new BitmapImage();
imageSource.BeginInit();
imageSource.StreamSource = ms;
imageSource.CacheOption = BitmapCacheOption.OnLoad;
imageSource.EndInit();
// Assign the Source property of your image
yourImage.Source = imageSource;
}
What is column's type where you hold the image? 您保存图像的列的类型是什么? You could try somehing like this
你可以这样尝试
Image tmp = ImageConverter.ConvertFrom(rdr1.GetStream("photo"));
where photo is name of your column 照片是您专栏的名称
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