How to change LinkButton InnerHTML from C# asp.net?

Question

I'm using asp.net WebForms and I'm trying to to change a LinkButton InnerHTML dynamically from C# using this code.

protected void Page_Load(object sender, EventArgs e)
{
    string connStr = ConfigurationManager.ConnectionStrings["iWork"].ToString();
    SqlConnection conn = new SqlConnection(connStr);

    SqlCommand cmd = new SqlCommand("AvailableCompanies", conn);
    cmd.CommandType = CommandType.StoredProcedure;

    conn.Open();

    SqlDataReader rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection);
    while (rdr.Read())
    {
        string companyName = rdr.GetString(rdr.GetOrdinal("name"));
        string email = rdr.GetString(rdr.GetOrdinal("email"));
        string vision = rdr.GetString(rdr.GetOrdinal("vision"));
        string domain = rdr.GetString(rdr.GetOrdinal("domain_name"));
        string field = rdr.GetString(rdr.GetOrdinal("field_of_specialization"));
        string type = rdr.GetString(rdr.GetOrdinal("type"));
        string address = rdr.GetString(rdr.GetOrdinal("address"));

        LinkButton btn = new LinkButton();
        btn.Click += new EventHandler(company);

        HtmlGenericControl html = new HtmlGenericControl();
        html.InnerHtml = "<div class='list-group'>" +
                        "<a href=''  runat='server' onServerClick='company' class='list-group-item active'>" +
                        "<h4 class='list-group-item-heading'>" + companyName + "</h4>" +
                        "<p class='list-group-item-text'><strong>Email: </strong>" + email + "</p>" +
                        "<p class='list-group-item-text'><strong>Vision: </strong>" + vision + "</p>" +
                        "<p class='list-group-item-text'><strong>Domain: </strong>" + domain + "</p>" +
                        "<p class='list-group-item-text'><strong>Field: </strong>" + field + "</p>" +
                        "<p class='list-group-item-text'><strong>Type: </strong>" + type + "</p>" +
                        "<p class='list-group-item-text'><strong>Address: </strong>" + address + "</p></a>" +
                        "</div>"; ;

        btn.Controls.Add(html);
        companies.Controls.Add(btn);
    }

    conn.Close();
}

The problem is, The LinkButton and the HTML are generated in 2 different tags, with the LinkButton having a size of 0 width and 0 height.

any ideas on how to change the LinkButton dynamically from C#?

You cannot create a string with `runat=server` and `onserverclick` and expect it to work. Add actual controls dynamically or use a Repetater, ListView etc. What you have now is not gonna work. — VDWWD, Nov 24 '17 at 20:46
Ah. And change the inner html of a linkbutton with `btn.Text = "content` or just plain text with `btn.Text = "Text"` — VDWWD, Nov 24 '17 at 20:54
@VDWWD yes I realized, I found that it made no difference so I left it there. The counter approach I took was to create a LinkButton and nest my html inside it, but it just never seems to work. — George, Nov 24 '17 at 20:56
@VDWWD I'm able to change the content of the LinkButton and get the content displayed. My problem is that they get displayed in to different tags. I want them in one tag so as to use the onClick functionality of the LinkButton with my view. — George, Nov 24 '17 at 21:01

score 0 · Answer 1 · answered Jan 09 '23 at 05:29

Try the below code in server side:

 btnDeleteMOB.Text = "<span aria-hidden=\"true\" class=\"glyphicon glyphicon glyphicon-trash\"></span>&nbsp;Close File";

It will create html like below:

<asp:LinkButton ID="btnDeleteMOB" runat="server" OnClick="btnDeleteMOB_Click" CssClass="btn btn-warning">
<span aria-hidden="true" class="glyphicon glyphicon glyphicon-trash"></span>&nbsp;Close File </asp:LinkButton>

How to change LinkButton InnerHTML from C# asp.net?

1 Answers1