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Answer 1

A:

Handle Sys.WebForms.PageRequestManager.endRequest event and scroll the textbox down: var tbox = $get('<%= TextBox1.ClientID %>'). tbox.scrollTop = tbox.scrollHeight;

Tadas 2009-09-07 08:20:25

.scrollDown() seems to be not defined! I'm getting a javascript exception

ala 2009-09-07 08:36:21

Sorry - scrollDown was my function. My answer updated.

Tadas 2009-09-07 08:57:13

Answer 2

A:

Try some plain javascript. Here's a sample I think you can modify to work in your scenario:

<html xmlns="http://www.w3.org/1999/xhtml"&gt;
<head runat="server">
  <title></title>

  <script type="text/javascript">
    function scrollDown() 
    {
      document.getElementById('<%=TextBox1.ClientID%>').scrollTop = document.getElementById('<%=TextBox1.ClientID%>').scrollHeight;
    };
  </script>

</head>
<body>
  <form id="form1" runat="server">
  <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
  </form>
</body>
</html>

You just have to figure out how to call the scrollDown method...

Jakob Gade 2009-09-07 08:22:47

this might be good for textarea HTML control, but how to add a javascript function to asp:TextBox server control?

ala 2009-09-07 08:35:06

Updated the sample...

Jakob Gade 2009-09-07 09:11:29

Answer 3

A:

Why dont you try this simple example:

protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) {

            Page.ClientScript.RegisterStartupScript(this.GetType(),
            "ScrollTextbox",
            "<script type=\"text/javascript\">document.getElementById('" +
            this.TextBox1.ClientID +
            "').scrollTop = document.getElementById('" +
            this.TextBox1.ClientID +
            "').scrollHeight; " +
            " </script>");
        }
    }

Just change TextBox1 parameter with your text box name. You can see that the content in the text box is scrolled to bottom.

You can call this java script after AJAX is refreshing the content of your text box.

ZokiManas 2009-09-07 09:21:04

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how to scroll asp.net textbox to bottom

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