Avatar of BOEING39
BOEING39
 asked on

REREIVING IMAGE IN GRIDVIEW

Please find the attached code.   I have a Gridview that displays and image in the Image column.   The upload function works correctly as the images are going to the "Image" folder; however, the image does not display in the Gridview.   Only a box with a black X in it.  I need assistance in resolving this issue?  


Markup Code:>>>>>>>>>>>>>>


<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>GridView Images Example</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:FileUpload ID="FileUpload1" runat="server"/>
        <asp:Button ID="btnUpload" runat="server" Text="Upload" OnClick="btnUpload_Click" />
    </div>
    <hr />
    <div>
    <br />
        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns = "false" Font-Names = "Arial" >
            <Columns>
                <asp:BoundField DataField = "ID" HeaderText = "ID" />
                <asp:BoundField DataField = "fname" HeaderText = "Image Name" />
                <asp:ImageField DataImageUrlField = "fpath" ControlStyle-Width = "300" ControlStyle-Height = "300" HeaderText = "Preview Image"/>
            </Columns> 
        </asp:GridView>
    </div>
    </form>
</body>
</html>

Open in new window



Code Behind:>>>>>>>>>>>>>>>

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        DataTable dt = new DataTable();
        String strConnString = System.Configuration.ConfigurationManager.ConnectionStrings["DB_67492_mainConnectionString"].ConnectionString;
        string strQuery = "select * from GridUpload order by ID";
        SqlCommand cmd = new SqlCommand(strQuery);
        SqlConnection con = new SqlConnection(strConnString);
        SqlDataAdapter sda = new SqlDataAdapter();
        cmd.CommandType = CommandType.Text;
        cmd.Connection = con;
        try
        {
            con.Open();
            sda.SelectCommand = cmd;
            sda.Fill(dt);
            GridView1.DataSource = dt;
            GridView1.DataBind();
        }
        catch (Exception ex)
        {
            Response.Write(ex.Message);
        }
        finally
        {
            con.Close();
            sda.Dispose();
            con.Dispose();
        }
    }
    protected void btnUpload_Click(object sender, EventArgs e)
    {
        if (FileUpload1.PostedFile != null)
        {
            string FileName = Path.GetFileName(FileUpload1.PostedFile.FileName);

            //Save files to disk
            FileUpload1.SaveAs(Server.MapPath("~/images/" + FileName));

            //Add Entry to DataBase
            String strConnString = System.Configuration.ConfigurationManager.ConnectionStrings["DB_67492_mainConnectionString"].ConnectionString;
            SqlConnection con = new SqlConnection(strConnString);
            string strQuery = "insert into GridUpload (fname, fpath) values(@fname, @fpath)";
            SqlCommand cmd = new SqlCommand(strQuery);
            cmd.Parameters.AddWithValue("@fname", FileName);
            cmd.Parameters.AddWithValue("@fpath", "Images/" + FileName);
            cmd.CommandType = CommandType.Text;
            cmd.Connection = con;

            try
            {
                con.Open();
                cmd.ExecuteNonQuery();
            }
            catch (Exception ex)
            {
                Response.Write(ex.Message);
            }
            finally
            {
                con.Close();
                con.Dispose();
            }
        }
    }
}

Open in new window

C#

Avatar of undefined
Last Comment
BOEING39

8/22/2022 - Mon
ASKER CERTIFIED SOLUTION
chaau

THIS SOLUTION ONLY AVAILABLE TO MEMBERS.
View this solution by signing up for a free trial.
Members can start a 7-Day free trial and enjoy unlimited access to the platform.
See Pricing Options
Start Free Trial
GET A PERSONALIZED SOLUTION
Ask your own question & get feedback from real experts
Find out why thousands trust the EE community with their toughest problems.
BOEING39

ASKER
Quick accurate response.
Experts Exchange has (a) saved my job multiple times, (b) saved me hours, days, and even weeks of work, and often (c) makes me look like a superhero! This place is MAGIC!
Walt Forbes