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Using Upload (Async) to save images

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AsyncUpload

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3 Answers, 1 is accepted

answered on 09 Jan 2014, 05:03 AM

Hi Edd,

Please have a look into the following sample code snippet which works fine at my end.

ASPX:

<telerik:RadAsyncUpload runat="server" ID="RadAsyncUpload1" TargetFolder="~/Uploadimages"

AllowedFileExtensions=".jpg" OnFileUploaded="RadAsyncUpload1_FileUploaded">

</telerik:RadAsyncUpload>

<telerik:RadButton runat="server" Text="Postback" ID="RadButton1">

</telerik:RadButton>

<telerik:RadButton ID="RadButton2" runat="server" Text="GetImage" OnClick="RadButton2_Click">

</telerik:RadButton>

C#:

protected void RadAsyncUpload1_FileUploaded(object sender, FileUploadedEventArgs e)

{

Stream file = e.File.InputStream;

byte[] data = new byte[file.Length];

file.Read(data, 0, Convert.ToInt32(file.Length));

String connectionstring = WebConfigurationManager.ConnectionStrings["NorthwindConnectionString"].ConnectionString;

SqlConnection sqlconn = new SqlConnection(connectionstring);

try

{

sqlconn.Open();

//inserting the image into db

SqlCommand command = new SqlCommand("Insert into Pictable (msgid, pic1) Values (6, @pic)", sqlconn);

command.Parameters.Add("@pic", SqlDbType.VarBinary).Value = data;

command.ExecuteNonQuery();

}

finally

{

file.Close();

sqlconn.Close();

}

protected void RadButton2_Click(object sender, EventArgs e)

{

try

{

using (SqlConnection myConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["NorthwindConnectionString"].ConnectionString))

{

//accessing image from database

const string SQL = "SELECT [pic1] FROM [Pictable] ";

SqlCommand myCommand = new SqlCommand(SQL, myConnection);

myConnection.Open();

SqlDataReader myReader = myCommand.ExecuteReader();

if (myReader.Read())

{

Response.BinaryWrite((byte[])myReader["pic1"]);

}

myReader.Close();

myConnection.Close();

}

catch (Exception ex)

{

Response.Write(ex.ToString());

}

Thanks,
Shinu.

answered on 09 Jan 2014, 12:06 PM

Please i used the exact code you provided changing the connectionstrings to suit mine but didnt work.
below are the codes

ASPX

<body>

<form id="form1" runat="server">

<div>

<telerik:RadScriptManager ID="RadScriptManager1" runat="server"></telerik:RadScriptManager>

<telerik:RadAsyncUpload runat="server" ID="RadAsyncUpload1" TargetFolder="~/Uploadimages"

AllowedFileExtensions=".jpg" OnFileUploaded="RadAsyncUpload1_FileUploaded">

</telerik:RadAsyncUpload>

<telerik:RadButton runat="server" Text="Postback" ID="RadButton1">

</telerik:RadButton>

<telerik:RadButton ID="RadButton2" runat="server" Text="GetImage" OnClick="RadButton2_Click">

</telerik:RadButton>

</div>

</form>

</body

>





C#



 

protected void RadAsyncUpload1_FileUploaded(object sender, FileUploadedEventArgs e)
    {
        Stream file = e.File.InputStream;
        byte[] data = new byte[file.Length];
        file.Read(data, 0, Convert.ToInt32(file.Length));
        String connectionstring = WebConfigurationManager.ConnectionStrings["RealEstateConnectionString1"].ConnectionString;
        SqlConnection sqlconn = new SqlConnection(connectionstring);
        try
        {
            sqlconn.Open();
            //inserting the image into db
            SqlCommand command = new SqlCommand("Insert into Pictable (pic1) Values (@pic)", sqlconn);
            command.Parameters.Add("@pic", SqlDbType.VarBinary).Value = data;
            command.ExecuteNonQuery();
        }
        finally
        {
            file.Close();
            sqlconn.Close();
        }
    }
    protected void RadButton2_Click(object sender, EventArgs e)
    {
        try
        {
            using (SqlConnection myConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["RealEstateConnectionString1"].ConnectionString))
            {
                //accessing image from database
                const string SQL = "SELECT [pic1] FROM [Pictable] ";
                SqlCommand myCommand = new SqlCommand(SQL, myConnection);
                myConnection.Open();
                SqlDataReader myReader = myCommand.ExecuteReader();
                if (myReader.Read())
                {
 
                    Response.BinaryWrite((byte[])myReader["pic1"]);
                }
                myReader.Close();
                myConnection.Close();
            }
        }
        catch (Exception ex)
        {
            Response.Write(ex.ToString());
        }
    }



Database Script


USE [RealEstate]
GO
 
/****** Object:  Table [dbo].[Pictable]    Script Date: 1/9/2014 12:13:34 PM ******/
SET ANSI_NULLS ON
GO
 
SET QUOTED_IDENTIFIER ON
GO
 
CREATE TABLE [dbo].[Pictable](
    [msgid] [int] IDENTITY(1,1) NOT NULL,
    [pic1] [image] NULL,
 CONSTRAINT [PK_Pictable] PRIMARY KEY CLUSTERED 
(
    [msgid] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
 
GO

 

Thank you...