Null image figure in datalist

in file upload section:
protected void Button1_Click(object sender, EventArgs e)
{
if(!string.IsNullOrEmpty(FileUpload2.FileName))
{
FileUpload2.SaveAs("" + Server.MapPath("..//") + "\\images/htcpic/\\" + FileUpload2.FileName);
}
if(!string.IsNullOrEmpty(FileUpload3.FileName))
{
FileUpload3.SaveAs("" + Server.MapPath("..//") + "\\images/htcpic/\\" + FileUpload3.FileName);
}
if (!string.IsNullOrEmpty(FileUpload4.FileName))
{
FileUpload4.SaveAs("" + Server.MapPath("..//") + "\\images/htcpic/\\" + FileUpload4.FileName);
}
string sajad = "Data Source=.;Initial Catalog=minus;Integrated Security=True";
SqlConnection conn = new SqlConnection(sajad);
SqlCommand sd = new SqlCommand("insert into mspc(title,image2,image3,image4) values (@title,@image2,@image3,@image4)", conn);
sd.Parameters.AddWithValue("@image", FileUpload1.FileName);
sd.Parameters.AddWithValue("@image2", FileUpload2.FileName);
sd.Parameters.AddWithValue("@image3", FileUpload3.FileName);
sd.Parameters.AddWithValue("@image4", FileUpload4.FileName);
sd.Parameters.AddWithValue("@title", TextBox1.Text);
conn.Open();
sd.ExecuteNonQuery();
conn.Close(); }
}
----------------------
in datalist:
<asp:DataList ID="DataList2" runat="server" DataKeyField="id" DataSourceID="SqlDataSource1" RepeatDirection="Horizontal">
<itemtemplate>
<br />

<img alt='<%# Eval("title") %>' height="178" src='/images/htcpic/<%#Eval("image2") %>' style="border-right: #cccccc thin solid; border-top: #cccccc thin solid; border-left: #cccccc thin solid; border-bottom: #cccccc thin solid"
width="120" />


<img alt='<%# Eval("title") %>' height="178" src='/images/htcpic/<%#Eval("image3") %>' style="border-right: #cccccc thin solid; border-top: #cccccc thin solid; border-left: #cccccc thin solid; border-bottom: #cccccc thin solid"
width="120" />


<img alt='<%# Eval("title") %>' height="178" src='/images/htcpic/<%#Eval("image4") %>' style="border-right: #cccccc thin solid; border-top: #cccccc thin solid; border-left: #cccccc thin solid; border-bottom: #cccccc thin solid"
width="120" />