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New to ASP.net

Discussion in 'C#' started by yorks45, Jan 2, 2007.

  1. #1
    Hi all

    I have just started to learn ASP.net and struggling a bit :) Its probably really simple to do this but I cannot work it out.
    SEMrush
    I want to assign some text to a variable according to the value of a querystring and then display this text. I have shown the relevant code below


    if(Request["CategoryID"]!="8")
    {
    string ptitle = "SLR cameras";
    }


    I then want to show the value of ptitle but when i do I get the following error


    Compiler Error Message: CS0103: The name 'ptitle' does not exist in the class or namespace 'ASP.testcat_aspx'

    Source Error:

    Line 39: <html>
    Line 40: <head>
    Line 41: <title><%=(ptitle)%></title>
    Line 42: <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
    Line 43: <!--[if IE]>


    any help would be much appreciated

    thanks
     
    yorks45, Jan 2, 2007 IP
    SEMrush
  2. kajakske

    kajakske Well-Known Member

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    #2
    You should dump the old ASP way of thinking ...

    In your aspx file, you should have controls ... For example a literal control ...

    <asp:Literal runat="server" id="ptitle" />

    Then you can change the text using ptitle.Text = "Something"
     
    kajakske, Jan 2, 2007 IP
  3. yorks45

    yorks45 Peon

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    #3
    Thanks for your reply. I have tried what you suggested but get the following error

    Compiler Error Message: CS0117: 'System.Web.UI.WebControls.Literal' does not contain a definition for 'text'

    Source Error:

    Line 29: if(Request["CategoryID"]!="8")
    Line 30: {
    Line 31: ptitle.text = "SLR cameras";
    Line 32: }
    Line 33:
     
    yorks45, Jan 2, 2007 IP
  4. serversidescripter

    serversidescripter Banned

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    #4
    what is the data type of your CategoryID is that an integer of a string?
     
    serversidescripter, Jan 2, 2007 IP
  5. YIAM

    YIAM Notable Member

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    #5
    try it.

    if(Request("CategoryID")!="8") then
    ptitle.text = "SLR cameras"
    end if
     
    YIAM, Jan 2, 2007 IP
  6. yorks45

    yorks45 Peon

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    #6
    Still having probs ....here is the code I am using



    <asp:Literal runat="server" id="ptitle" />

    <script language=C# runat=server>
    private DataTable dtSubCategories;
    private DataTable dtProducts;
    private DataTable dtProductVariants;
    private Product ObjProduct = null;
    private int CategoryID;
    private bool IsStockedAccessories = false;

    private void Page_Load(object sender, System.EventArgs e)

    {
    if((Request["CategoryID"]!=null)&&(Request["CategoryID"]!=""))
    {
    ObjProduct = new Product();
    CategoryID = Convert.ToInt32(Request["CategoryID"]);
    ObjProduct.CategoryID = CategoryID;
    dtSubCategories = ObjProduct.GetSubCategories();
    }


    }
    </script>

    <%
    if(Request("CategoryID")!="8") then
    ptitle.text = "SLR cameras";
    end if
    %>

    Here is the error I am getting

    Compiler Error Message: CS1002: ; expected

    Source Error:

    Line 33: <%
    Line 34: if(Request("CategoryID")!="8") then
    Line 35: ptitle.text = "SLR cameras";
    Line 36: end if
    Line 37: %>


    I then want to display the value of ptitle in the title tag of the page

    eg <title>**** ptitle here *******</title>
     
    yorks45, Jan 2, 2007 IP
  7. YIAM

    YIAM Notable Member

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    #7
    <%
    if request("CategoryID")<>"8" then
    ptitle = "SLR cameras"
    end if
    %>
    
    Code (markup):
    
    Line 39: <html>
    Line 40: <head>
    Line 41: <title><%=ptitle%></title>
    Line 42: <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
    Code (markup):
    This must be work.
     
    YIAM, Jan 2, 2007 IP
  8. yorks45

    yorks45 Peon

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    #8
    still doesnt work..get the following error

    Compiler Error Message: CS1003: Syntax error, '(' expected - line 34

    Source Error:

    Line 32:
    Line 33: <%
    Line 34: if request("CategoryID")<>"8" then
    Line 35: ptitle = "SLR cameras"
    Line 36: end if
     
    yorks45, Jan 2, 2007 IP
  9. kajakske

    kajakske Well-Known Member

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    #9
    .Text ... With a capital T

    If you use C# to program, it's case sensitive ... ;-)
     
    kajakske, Jan 2, 2007 IP
  10. yorks45

    yorks45 Peon

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    #10
    Still having problems with this...if anyone can provide assistance if sorting this small problem via messenger / yahoo / icq out I'd be happy to pay :)
     
    yorks45, Jan 4, 2007 IP