Retrieving Image database to a datalist

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This is the code of saving image database

C#

protected void BtnSave_Click(object sender, EventArgs e)
        {
         
            SqlConnection con = new SqlConnection(connectionString);
            if (FileUpload1.HasFile)
            {
                if (FileUpload1.PostedFile.ContentType == "image/bmp" || FileUpload1.PostedFile.ContentType == "image/jpg" || FileUpload1.PostedFile.ContentType == "image/jpeg" || FileUpload1.PostedFile.ContentType == "image/png")
                {
                    int filelenght = FileUpload1.PostedFile.ContentLength;
                    byte[] imagebytes = new byte[filelenght];
                    FileUpload1.PostedFile.InputStream.Read(imagebytes, 0, filelenght);
                    SqlCommand cmd = new SqlCommand();
                    cmd.CommandText = "Insert into imagesave(image) values(@img)";
                    cmd.Connection = con;
                    cmd.Parameters.AddWithValue("@img", imagebytes);
                    con.Open();
                    cmd.ExecuteNonQuery();
                    con.Close();
                    Response.Write("Image saved to database");
                }
            }
        }

ASP.NET

  <asp:DataList ID="DataList1" runat="server" BorderStyle="None" Width="634px" 
                                            BorderWidth="1px" RepeatColumns="3" BackColor="White" DataKeyField="ProductSNo"
                                            BorderColor="#CCCCCC" CellPadding="4" ForeColor="Black" 
                         >
                                          
                                            <footerstyle backcolor="#CCCC99" forecolor="Black" />
                                            <HeaderStyle BackColor="#333333" Font-Bold="True" ForeColor="White" />
                                            <itemtemplate>
                                                <table cellspacing="1" style="border-style: solid">
                                                    <tr>
                                                        <td align="center">
                                                <asp:Label ID="lblProductName" runat="server"  Text='<% #DataBinder.Eval(Container.DataItem, "ProductName")%>' Font-Bold="True" Font-Underline="True" Font-Size="X-Large"><br /><hr />

                                                        </td>
                                                   </tr>
             
                                                    <tr>
                                                        <td>


Now how  to reteieve image in datalist:

                                                        <asp:Image ID="imgProduct"   ?????????</td></tr></table></itemtemplate>

Posted 5-Sep-15 21:50pm

Member 11804811

Updated 5-Sep-15 22:09pm

Suvendu Shekhar Giri

v2

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Suvendu Shekhar Giri · Answer 1 · 2015-09-05T22:35:00

Solution 1

You are just few lines of conventional code away from the solution. If you have written the code to INSERT by your own then it should not be a great task to do.

Get data from database in to a Datatable object and set it as datasource of the DataList.

C#

using (SqlDataAdapter da = new SqlDataAdapter("SELECT [image],ProductName FROM imagesave", con)) //You may need to use JOIN to get ProductName if it resides in another table
{
    DataTable dt = new DataTable();
    da.Fill(dt);
    DataList1.DataSource = dt;
}

You can use simple html img instead of ASP.Net Image.

HTML

<img src='<% #DataBinder.Eval(Container.DataItem, "image")%>' />

Note: it is not recommended to use keywords for naming column, you can consider changing your column name to something like ProductImage.

Hope, it helps :)

Posted 5-Sep-15 22:35pm

Suvendu Shekhar Giri

Updated 6-Sep-15 3:01am

v2

Comments

Member 11804811 6-Sep-15 8:31am

Compilation Error

Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

Compiler Error Message: CS1024: Preprocessor directive expected

Source Error:

Line 113: <tr>
Line 114: <td>
Line 115: <img src="<% #DataBinder.Eval(Container.DataItem, "image")%>" />
Line 116:
Line 117: </td>

Member 11804811 6-Sep-15 8:32am

Thanku...But When I am taking <img> tag,it gives This Error.Help me to sort Out this

Suvendu Shekhar Giri 6-Sep-15 9:02am

Wrap content within single quotes rather than double quotes for src attribute. Check the updated solution.
<img src='<% #DataBinder.Eval(Container.DataItem, "image")%>' />

Member 11804811 6-Sep-15 9:07am

Got The Same Error Again

Member 11804811 6-Sep-15 9:08am

An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

Suvendu Shekhar Giri 6-Sep-15 9:15am

Can you please try this-
<img src='<% #Eval("image")%>' />

Member 11804811 7-Sep-15 1:46am

ok...