Url Routing Asp.net - asp.net

Question

I have a blog page where blogs are fetched from database to my webpage.
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" GridLines="None">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<div class="blog_post">
<div class="col-lg-3 col-md-3 col-sm-3">
<div class="">
<img src='<%# Eval("photo")%>' alt="Couple blog image" width="205px" height="150px" />
</div>
</div>
<div class="col-lg-9 col-md-9 col-sm-9">
<p class="posting_date"><%# Eval("date","{0:MMMM dd,yyyy}")%></p>
<h3><a href='ReadBlog/<%# Eval("title").ToString()%>'><%# Eval("title")%></a></h3>
<%#Eval("title") %>
<p class="blog_text">
<%# Eval("sdesc")%>
<p class="blog_text">
<a class="btn btn-danger" style="color:wheat" href='read_blog.aspx?id=<%# Eval("title")%>'>Read Post</a>
</p>
</p>
</br></br>
<hr/>
</div>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
on my Read_blog.aspx.cs page I have used...
if (!IsPostBack)
{
string myquery = Page.RouteData.Values["id"].ToString();
cls.gridbind(GridView1, "select * from tbl_blog_master where title='" + Request.QueryString["id"].ToString() + "' order by date desc");
}
I want to get the url like this
localhost/readblog/my-first-blog
help me please i am new to asp.net and have to learn a lot...
This is my first time on stackoverflow so sorry for my english..