Question

I’m trying to read items from a DataTable into a webpage, but getting 2 errors in the C# code: p1.InnerHTML = dt.rows(0).Item(0);

Errors:

p1 does not exist in the current content.
System.Data.Datatable does not contain a definition for ‘rows’ and no extension method ‘rows’ accepting a first argument ..

C#

protected void Page_Load(object sender, EventArgs e)
{
    DataTable dt = new DataTable();
    string strConnection = ConfigurationManager.ConnectionStrings["ChinatowndbConnString"].ConnectionString;
    SqlConnection conn = new SqlConnection(strConnection);
    string sql = "SELECT pagetext FROM Content where pagetag = 1";
    SqlCommand cmd = new SqlCommand(sql);
    cmd.CommandType = CommandType.Text;
    cmd.Connection = conn;
    SqlDataAdapter sd = new SqlDataAdapter(cmd);
    sd.Fill(dt);

    p1.InnerHTML = dt.rows(0).Item(0);
    p2.InnerHTML = dt.rows(1).Item(0);
    p3.InnerHTML = dt.rows(2).Item(0);
}

HTML:

<p id="p1" class="none"></p>
<p id="p2" class="none"></p>
<p id="p3" class="none"></p>

Any ideas how to get my code working,

Thanks
Tea

Answer 1

1. p is a html element, you must add runat=server if you want to access it on serverside

2. C# is case-sensitive and the property is called Rows instead of rows

   <p id="p1" runat="server" class="none"></p>
   <p id="p2" runat="server" class="none"></p>
   <p id="p3" runat="server" class="none"></p>
   

Furthermore, in C# an arry indexer is accessed via square brackets instead of parentheses. But i would suggest to use the DataRow.Field extension method instead:

p1.InnerHtml = dt.Rows[0].Field<String>(0); // first field of first row, assuming that it's a string

Final note: you have also mispelled InnerHtml. Visual Studio can correct it automatically for you if the cursor is somewhere in InnerHTML and you press Ctrl+Space.