How to populate html input from server side

Question

I am not quite sure how to attack this, basically I have two html fields in my aspx page:

<input type="text" name="fname" />
<input type="text" name="lname"/>

Now i would like to populate them from the server side when the page loads based on some data collected from the database, basically this data is stored in two properties

public string FirstName { get; set;}
public string LastName {get; set;}

How can I pass the value from such properties into the html inputs On_Load ?

I would appreciate the help.

Oded · Accepted Answer · 2012-04-14 19:50:02Z

2

Here is one way, assuming Webforms:

<input type="text" name="fname" value="<%:FirstName%>" />
<input type="text" name="lname" value="<%:LastName%>" />

If using .NET before 4.0, replace the <%: with <%=.

Another option is to change the input types to be runat="server" and assigning the values directly on the server side.

answered Apr 14, 2012 at 19:50

Oded

501k102 gold badges900 silver badges1k bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

Josh Mein Over a year ago

You may want to check that second input ;)

Surinder Bhomra Over a year ago

@Oded Very useful. I never knew about using "<:" over "<%=". +1!

Ash Burlaczenko Over a year ago

@Oded, is there a difference between using <@: and <@=?

Oded Over a year ago

@AshBurlaczenko - Yes. <%: is <%= with Html.Encode included. See weblogs.asp.net/scottgu/archive/2010/04/06/…

Ash Burlaczenko · Accepted Answer · 2012-04-14 19:59:37Z

1

Alternatively add runat="server" to your elements, then you could do something like

fname.Value = FirstName;
lname.Value = LastName;

edited Apr 14, 2012 at 19:59

answered Apr 14, 2012 at 19:52

Ash Burlaczenko

25.6k16 gold badges70 silver badges103 bronze badges

2 Comments

Ash Burlaczenko Over a year ago

Is that right? If it was a server side control you wouldn't need to FindControl, use could access it directly.

Oded Over a year ago

True. But FindControl doesn't work on client side controls. See MSDN - "Searches the current naming container for a server control with the specified id parameter."

Strider489 · Accepted Answer · 2017-05-13 02:28:22Z

0

The info I was looking for was like this:

protected void Page_Load(object sender, EventArgs e)
{
    address.Value = Request.QueryString["lat"];
    address1.Value = Request.QueryString["long"];
}

takes values from the URL string and puts them in an HTML input="text"

http://localhost:64375/Map.aspx?lat=detroit&long=windsor

 Enter Address A: <input runat="server" name="address" id="address" type="text" />
 Enter Address B: <input runat="server" name="address1" id="address1" type="text" />

thanks Ash and Oded for the combined answer

answered May 13, 2017 at 2:28

Strider489

671 silver badge11 bronze badges

Collectives™ on Stack Overflow

How to populate html input from server side

3 Answers 3

4 Comments

2 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

4 Comments

2 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related