private
void
button1_Click(
object
sender, EventArgs e)
{
string
pPath = Application.StartupPath +
@"
\QQ.jpg
"
;
FileInfo fi =
new
FileInfo(pPath);
byte
[] Temp = imageToByteArray(pPath);
Image img = byteArrayToImage(Temp);
int
W = img.Width;
int
H = img.Height;
string
Fm = fi.Extension;
//
扩展名
long
size = fi.Length;
//
string
Fn = fi.Name;
string
info =
"
名称:
"
+ Fn +
"
分辨率:
"
+ W +
"
*
"
+ H;
info +=
"
格式:
"
+ Fm +
"
大小:
"
+ ((size >
1024
) ? ((
float
)((
float
)size /
1024.0
)).ToString(
"
0.00
"
) +
"
KB
"
: size +
"
B
"
);
this
.label1.Text = info;
this
.pictureBox1.Height = H;
this
.pictureBox1.Width = W;
this
.pictureBox1.Image = img;
}
private
void
button2_Click(
object
sender, EventArgs e)
{
string
pPath = Application.StartupPath +
@"
\QQ.jpg
"
;
byte
[] Temp = imageToByteArray(pPath);
StringBuilder Sb =
new
StringBuilder();
for
(
int
i =
0
; i < Temp.Length; i++)
{
Sb.Append(Temp[i].ToString());
}
richTextBox1.Text = Sb.ToString();
}
///
<summary>
///
图片转为Byte字节数组
///
</summary>
///
<param name="FilePath">
路径
</param>
///
<returns>
字节数组
</returns>
private
byte
[] imageToByteArray(
string
FilePath)
{
using
(MemoryStream ms =
new
MemoryStream())
{
using
(Image imageIn = Image.FromFile(FilePath))
{
using
(Bitmap bmp =
new
Bitmap(imageIn))
{
bmp.Save(ms, imageIn.RawFormat);
}
}
return
ms.ToArray();
}
}
///
<summary>
///
字节数组生成图片
///
</summary>
///
<param name="Bytes">
字节数组
</param>
///
<returns>
图片
</returns>
private
Image byteArrayToImage(
byte
[] Bytes)
{
using
(MemoryStream ms =
new
MemoryStream(Bytes))
{
Image outputImg = Image.FromStream(ms);
return
outputImg;
}
}
//从数据库里面读取出来
private void button1_Click(object sender, EventArgs e)
{
openFileDialog1.Filter = "*jpg|*.JPG|*.GIF|*.GIF|*.BMP|*.BMP";
if(openFileDialog1.ShowDialog()==DialogResult.OK)
{
string fullpath =openFileDialog1.FileName;//文件路径
FileStream fs = new FileStream(fullpath, FileMode.Open);
byte[] imagebytes =new byte[fs.Length];
BinaryReader br = new BinaryReader(fs);
imagebytes = br.ReadBytes(Convert.ToInt32(fs.Length));
//打开数据库
SqlConnection con = new SqlConnection("server=(local);uid=sa;pwd=;database=db_05");
con.Open();
SqlCommand com = new SqlCommand("insert into tb_08 values(@ImageList)",con);
com.Parameters.Add("ImageList", SqlDbType.Image);
com.Parameters["ImageList"].Value = imagebytes;
com.ExecuteNonQuery();
con.Close();
}
}