selecting data from datalist and display on modal

Hi am having issues with selecting data on datalist and display it on formview in modal popup, but the data is not displaying on modal after click .

protected void Page_Load(object sender, EventArgs e)

{

if (!Page.IsPostBack)

{

if (this.Page.User.Identity.IsAuthenticated)

{

username = this.Page.User.Identity.Name;

DataTable dt = GetProfile();

GetMergedAll.DataSource = dt;

ViewState["DataTable"] = dt;

GetMergedAll.DataBind();

}

}}

public DataTable GetProfile()

{

string constr = ConfigurationManager.ConnectionStrings["conn"].ConnectionString;

using (SqlConnection con = new SqlConnection(constr))

{

// using (SqlCommand cmd = new SqlCommand("select * from GetUserPOSTS"))

{

SqlDataAdapter sda = new SqlDataAdapter("GetUserPOSTS", constr);

{

sda.SelectCommand.CommandType = CommandType.StoredProcedure;

// adp.SelectCommand.Parameters.AddWithValue("@Email", username);

sda.SelectCommand.Parameters.AddWithValue("@UserName", username);

sda.SelectCommand.Parameters.AddWithValue("@Id", Id);

// cmd.Connection = con;

// sda.SelectCommand = cmd;

using (DataTable dt = new DataTable())

{

sda.Fill(dt);

return dt;

}

protected void GetMergedAll_ItemCommand1(object source, DataListCommandEventArgs e)

{

if (e.CommandName== "SharePost")

{

- int index = Convert.ToInt32(e.CommandArgument);

DataTable dt = (DataTable)ViewState["DataTable"];

IEnumerable query = from i in dt.AsEnumerable()

where i.Field("Id").Equals(index)

select i;

DataTable detailTable = query.CopyToDataTable();

SharePost.DataSource = detailTable;

SharePost.DataBind();

}

protected void btnClick_Click(object sender, EventArgs e)

{

ScriptManager.RegisterStartupScript(this, this.GetType(), "Pop", "openModal();", true);

}