TextBox Question

[Guest]

What shall I do to clear the default text of a textbox when this is selected?

Hector

 

[Ken Cox [Microsoft MVP]]

Hi Hector,

For that, I'd inject a little client-side JavaScript into the page that
checks the current text when the control gets the focus. If it is the same
as the default text, set it to an empty string.

Here's the idea:

Private Sub Page_Load _
(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles MyBase.Load
Dim strDefaultText = "The default text"
If Not IsPostBack Then
TextBox1.Text = strDefaultText
End If
TextBox1.Attributes.Add("onfocus", "doClear(this)")
Page.RegisterClientScriptBlock("clear", _
"<script language='javascript'>function doClear(cntrl)" & _
"{if (cntrl.value=='" & _
strDefaultText & "'){cntrl.value=''}}</script>")
End Sub

<form id="Form1" method="post" runat="server">
<asp:textbox id="TextBox1" runat="server"></asp:textbox>
</form>

Let us know if this helps?

Ken
Microsoft MVP [ASP.NET]
Toronto

 

[Guest]

Thanks. That worked out like a charm.

Hector

Hi Hector,

For that, I'd inject a little client-side JavaScript into the page that
checks the current text when the control gets the focus. If it is the same
as the default text, set it to an empty string.

Here's the idea:

Private Sub Page_Load _
(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles MyBase.Load
Dim strDefaultText = "The default text"
If Not IsPostBack Then
TextBox1.Text = strDefaultText
End If
TextBox1.Attributes.Add("onfocus", "doClear(this)")
Page.RegisterClientScriptBlock("clear", _
"<script language='javascript'>function doClear(cntrl)" & _
"{if (cntrl.value=='" & _
strDefaultText & "'){cntrl.value=''}}</script>")
End Sub

<form id="Form1" method="post" runat="server">
<asp:textbox id="TextBox1" runat="server"></asp:textbox>
</form>

Let us know if this helps?

Ken
Microsoft MVP [ASP.NET]
Toronto

What shall I do to clear the default text of a textbox when this is
selected?

Hector

 

[Ken Cox [Microsoft MVP]]

Excellent!