how to put varying alt tag in a image slider

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C#

ASP.NET

SEO

Hi,
i am new to asp.net and i am creating a tourism website.In this website i have a slider which shows images of different places and this images are retrieved dynamically from database.Here i have used a repeater to create the slider as shown below

<section class="slider">
        <div class="flexslider">
          <ul class="slides">
           
  	    		<asp:Repeater ID="rptImages" runat="server">
        <ItemTemplate>
            <li>
  	    	    <img src='<%# Eval("image") %>' alt="" />
                <div class="myCaption"><%# Eval("place") %></div>
  	    		</li>
        </ItemTemplate>
    </asp:Repeater>
  	    		
          </ul>
        </div>
      </section>

code behind

SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["myConnectionString"].ConnectionString);

       //======= Select Query.
       string cmdText = "SELECT place,image FROM tourdescription  where id='" + id + "' ORDER BY descid";

       //====== Providning information to SQL command object about which query to
       //====== execute and from where to get database connection information.
       SqlCommand cmd = new SqlCommand(cmdText, con);

       //===== To check current state of the connection object. If it is closed open the connection
       //===== to execute the insert query.
       if (con.State == ConnectionState.Closed)
       {
           con.Open();
       }

       //===== Execute Query and bind data to ListView.
       rptImages.DataSource = cmd.ExecuteReader();
       rptImages.DataBind();

here slider has repeater with an image having an alt tag.i want to make this alt tag dynamic that if image slider displays image of new delhi then alt tag should be new delhi.if it displays agra then alt tag should be agra.Also it should help in bringing page first while searching agra in google image ie help in search engine optimisation.Can anyone tell me a way to do that.God bless you.Thank you in advance