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Thread: iframe problem in asp.net

  1. #1
    Join Date
    Oct 2007
    Posts
    25

    iframe problem in asp.net

    i have created one html editor successfully.
    but whenever i store the content of iframe to oracle table the html tag
    also get stored.
    so while displaying the same data in a textbox it is not displaying the formatted data.
    insted it displays like this

    <strong>hello<strong>

    i want 'hello' should be display like bolded one.

    i will copy the entire source code


    <%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" ValidateRequest="false"%>

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

    <html xmlns="http://www.w3.org/1999/xhtml" >
    <head runat="server">
    <title>Untitled Page</title>
    <style type="text/css">

    .butClass
    {
    border: 1px solid;
    border-color: #D6D3CE;

    }


    </style>
    </head>
    <body>
    <form id="frmMain" method="post" runat="server">

    <div>
    <table id="tblCtrls" border="0" cellspacing="0" cellpadding="0" style="background-color:#D6D3CE; z-index: 104; left: 13px; position: absolute; top: 219px; width: 301px;">

    <tr>
    <td class="tdClass" style="width: 415px; height: 28px;">
    <img alt="Bold" class="butClass" src="image/bold.gif" onclick="doBold()" id="IMG1"/>
    </td>
    </tr>
    </table>
    <asp:Button ID="Button1" runat="server" Style="z-index: 100; left: 494px; position: absolute;
    top: 192px" Text="Button" />
    <asp:TextBox ID="TextBox1" runat="server" Style="z-index: 107; left: 589px; position: absolute;
    top: 191px" TextMode="MultiLine"></asp:TextBox>
    &nbsp;
    <asp:Button ID="cmdSubmit" runat="server" Style="z-index: 102; left: 37px;position: absolute;
    top: 190px" Text="Button" />
    &nbsp;
    <%--<input type="text" id="text1" name="hidValue" style="z-index: 104; left: 355px; position: absolute; top: 243px" />--%>
    <asp:Button id="cmdSend" runat="server" Text="Send" style="z-index: 103; left: 339px; position: absolute; top: 368px"></asp:Button>
    <iframe id="ifrHTML" title="ifrHTML" runat="server" style="z-index: 105; left: 14px; position: absolute; top: 248px"></iframe>
    <input type="hidden" name="hidValue" style="z-index: 106; left: 398px; position: absolute; top: 367px"/></div>
    </form>
    <script>
    //Set the IFRame to Desing Mode.
    ifrHTML.document.designMode = "on";

    function doBold()
    {
    ifrHTML.document.execCommand('bold', false, null);
    }
    </script>

    </body>
    </html>


    below is my code behind
    -----------------------
    Imports System.Data
    Imports System.Data.OleDb

    Partial Class _Default
    Inherits System.Web.UI.Page
    Dim cn As New OleDbConnection("provider=msdaora.1;user id=scott;password=tiger;data source=ora")

    Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    cmdSubmit.Attributes.Add("onClick", "document.frmMain.hidValue.value = ifrHTML.document.body.innerHTML;")

    End Sub

    Private Sub cmdSubmit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdSubmit.Click

    Dim strValue As String
    strValue = Server.HtmlEncode(Request.Form("hidValue")).ToString()

    Try

    Dim s As String
    cn.Open()

    s = "insert into iframe values('" + strValue + "')" //iframe is my table in oracle
    Dim cmd As New OleDbCommand
    cmd.Connection = cn
    cmd.CommandText = s
    cmd.ExecuteNonQuery()
    MsgBox("records inserted")
    cn.Close()
    Catch ex As Exception
    MsgBox(ex)
    End Try

    End Sub


    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
    cn.Open()
    Dim s1 As String
    s1 = "select * from iframe"

    Dim cmd1 As New OleDbCommand
    cmd1.CommandText = s1
    cmd1.Connection = cn

    Dim dr As OleDbDataReader
    dr = cmd1.ExecuteReader

    While dr.Read()
    TextBox1.Text &= HttpUtility.HtmlEncode(dr.GetValue(0))
    End While
    dr.Close()
    cn.Close()
    End Sub
    End Class

  2. #2
    Join Date
    Jun 2004
    Location
    Kansas City, MO
    Posts
    1,607
    A textbox will not format HTML code. A textbox will display the raw html (<b>This is a text</b> <p>This is some more code</p>).

    If your just trying to display the output then use a Literal control.

  3. #3
    Join Date
    Oct 2007
    Posts
    25
    when i use Literal control my data is displaying like this...

    &lt;STRONG&gt;bold&lt;/STRONG&gt;]

    please help me sir...it is very urgent

  4. #4
    Join Date
    Jun 2004
    Location
    Kansas City, MO
    Posts
    1,607
    Im not sure what the problem is. Here it looks like its displaying the text of the html characters. Example: (&lt; = '<' and &gt; = '>').

    Look in your DB and see how the data is stored. Is it stored as <b> or is it &lt;b&gt;?

  5. #5
    Join Date
    Oct 2007
    Posts
    25
    in db it stores as <b>text</b> only

  6. #6
    Join Date
    Jun 2004
    Location
    Kansas City, MO
    Posts
    1,607
    your encoding the html

    TextBox1.Text &= HttpUtility.HtmlEncode(dr.GetValue(0))

    Remove the HttpUtility.HtmlEncode()

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