问从db路径名加载图像时出现问题

EN

OdbcCommand cmd = new OdbcCommand("SELECT User.FirstName, User.SecondName, User.Aboutme, User.DOB, Pictures.picturepath FROM User LEFT JOIN Pictures ON User.UserID = Pictures.UserID WHERE User.UserID=1", cn);
OdbcDataReader reader = cmd.ExecuteReader();
while (reader.Read())
{
    Name.Text = String.Format("{0} {1}", reader.GetString(0), reader.GetString(1));
    Aboutme.Text = String.Format("{0}", reader.GetString(2));
    Age.Text = String.Format("{0}", reader.GetString(3));
    Image1.ImageUrl = String.Format("{0}", reader.GetString(4));
}

Image1.ImageUrl = String.Format("@{0}", reader.GetString(4));

<div class="image">
    <a href="#"></a>
    <img style="border-width: 0px;" src="C:\Users\Public\Pictures\Sample%20Pictures" id="ctl00_ContentPlaceHolder1_Image1">
    &nbsp;</div>

<div class="image">
    <a href="#"></a>
    <asp:Image ID="Image1" runat="server" />
    &nbsp;</div>