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分享如何在同个.aspx页里浏览多幅存储在数据库里的图片
如何在同个.aspx页里浏览多幅存储在数据库里的图片。BinaryWrite每次只显示一幅，绑定又怎么实现。
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erhai 2003-10-20
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可不可以给我代码，email:kuaidian_zl@sina.com
chf99cn 2003-10-18
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连接数据库,添加一个datalist控件，在其中添加一个模板列，在该模板列中放入IMG图像组件，然后将其与数据库二进制字段连接起来就可以了!
guoyan19811021 2003-10-18
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http://xml.sz.luohuedu.net/xml/ShowDetail.asp?id=2A5DD7C6-A45A-48AB-A2E8-342A29F17506
rgbcn 2003-10-18
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<img src="showimage.aspx?ImgID=202&height=150&width=150">
这边你想放几个就放几个，id不同就可以了。
这边你想放几个就放几个，id不同就可以了。
rgbcn 2003-10-18
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把存储在数据库中的图片根据自己的需要的大小显示出来
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文件1：showimage.aspx.cs
namespace ImageResizing {
public class MainDisplay : System.Web.UI.Page {
public void Page_Load(System.Object sender, System.EventArgs e) {
try {
System.Int32 _ImgID = System.Convert.ToInt32(Request.QueryString["ImgID"]);
System.Int32 _height = System.Convert.ToInt32(Request.QueryString["height"]);
System.Int32 _width = System.Convert.ToInt32(Request.QueryString["width"]);
System.Data.SqlClient.SqlConnection Con = new System.Data.SqlClient.SqlConnection( "server=localhost;database=northwind;trusted_connection=true" );
System.String SqlCmd = "SELECT * FROM Images WHERE ImageID = @ImageID";
System.Data.SqlClient.SqlCommand SqlCmdObj = new System.Data.SqlClient.SqlCommand( SqlCmd, Con );
SqlCmdObj.Parameters.Add("@ImageID", System.Data.SqlDbType.Int).Value = _ImgID;
Con.Open();
System.Data.SqlClient.SqlDataReader SqlReader = SqlCmdObj.ExecuteReader();
SqlReader.Read();
System.Web.HttpContext.Current.Response.ContentType = "image/pjpeg";
System.Drawing.Image _image = System.Drawing.Image.FromStream( new System.IO.MemoryStream( (byte[])SqlReader["Image"] ) );
System.Drawing.Image _newimage = _image.GetThumbnailImage( _width, _height, null, new System.IntPtr());
_newimage.Save( System.Web.HttpContext.Current.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg );
} catch (System.Exception Ex) {
System.Web.HttpContext.Current.Trace.Write(Ex.Message.ToString());
}
}
}
}
文件2：显示图片之用，把querystring传入
<html>
<body>
<img src="showimage.aspx?ImgID=202&height=150&width=150">
</body>
</html>
相关链接：http://www.aspnextgen.com/tutorials.aspx?tutorialid=176
--------------------------------------------------------------------------------
文件1：showimage.aspx.cs
namespace ImageResizing {
public class MainDisplay : System.Web.UI.Page {
public void Page_Load(System.Object sender, System.EventArgs e) {
try {
System.Int32 _ImgID = System.Convert.ToInt32(Request.QueryString["ImgID"]);
System.Int32 _height = System.Convert.ToInt32(Request.QueryString["height"]);
System.Int32 _width = System.Convert.ToInt32(Request.QueryString["width"]);
System.Data.SqlClient.SqlConnection Con = new System.Data.SqlClient.SqlConnection( "server=localhost;database=northwind;trusted_connection=true" );
System.String SqlCmd = "SELECT * FROM Images WHERE ImageID = @ImageID";
System.Data.SqlClient.SqlCommand SqlCmdObj = new System.Data.SqlClient.SqlCommand( SqlCmd, Con );
SqlCmdObj.Parameters.Add("@ImageID", System.Data.SqlDbType.Int).Value = _ImgID;
Con.Open();
System.Data.SqlClient.SqlDataReader SqlReader = SqlCmdObj.ExecuteReader();
SqlReader.Read();
System.Web.HttpContext.Current.Response.ContentType = "image/pjpeg";
System.Drawing.Image _image = System.Drawing.Image.FromStream( new System.IO.MemoryStream( (byte[])SqlReader["Image"] ) );
System.Drawing.Image _newimage = _image.GetThumbnailImage( _width, _height, null, new System.IntPtr());
_newimage.Save( System.Web.HttpContext.Current.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg );
} catch (System.Exception Ex) {
System.Web.HttpContext.Current.Trace.Write(Ex.Message.ToString());
}
}
}
}
文件2：显示图片之用，把querystring传入
<html>
<body>
<img src="showimage.aspx?ImgID=202&height=150&width=150">
</body>
</html>
相关链接：http://www.aspnextgen.com/tutorials.aspx?tutorialid=176
rgbcn 2003-10-18
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see
http://www.fixdown.com/article/article/1027.htm
http://www.fixdown.com/article/article/1027.htm
