How to display parameter passed to a page in a textbox control

[Morris Neuman]

Hi,

I have a gridview control on a page that has as its column a hyperlink
field. This hyperlink field opens another page and passes a parameter.
The hyperlink field has values as follows:
DataNavigateUrlFormatString = ManageUser-MBoxes.aspx?User={0}
DataNavigateUrlsFields = UserName.
The gridview is bound to an SqlDataSource control which returns the value of
UserName.

I want to display the value of the selected UserName field passed in the
parameterwhen the linked page is open in a TextBox control.

How do I bind the value of the TextBox control the the parameter passed to
the page via the hyperlink?

Any help would be appreciated.

 

[Steven Cheng[MSFT]]

Hi Morris,

As for the "bind url parameter from linked page to textbox" issue, I think
you can consider the following means:

1. If using code behind is acceptable, you can simply put the following
code in Page_load event to attach the querystring parameter to the Textbox.
e.g.

===============
protected void Page_Load(object sender, EventArgs e)
{
txtUsername.Text = Request.QueryString["User"];
}
===============

2. Another approach is using databinding expression, e.g.

<form id="form1" runat="server">
<div>
<asp:TextBox ID="txtUsername" runat="server" Text='<%#
Request.QueryString["User"] %>'></asp:TextBox>

but you need to explicitly call "DataBind" method of the textbox to trigger
the databinding:

protected void Page_Load(object sender, EventArgs e)
{
............
txtUsername.DataBind();

}



3. Another means is use the new feature of ASP.NET 2.0, you can build a
custom expression builder. This can help you embed normal codesnippet in
your ASP.NET server control's tag(attribute). Here is a good blog article
detailedly describe this:

#The CodeExpressionBuilder
http://weblogs.asp.net/infinitiesloop/archive/2006/08/09/The-CodeExpressionB
uilder.aspx

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead



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[Morris Neuman]

Hi Steven,

I used option 2 and it worked well. Thanks for your help.