How to add custom attributes to ASP.NET controls

Question

I've got an ASP.NET control say checkbox:

<asp:CheckBox ID="myChck" runat="server" Value="myCustomValue" />

Is it possible to add this custom Value attribute from code-behind and respectively get the value from Value

Something like (psuedocode):

myCkck.Value = "blq blq";
string chckValue = myChck.Value;

How can I do this?

Refer MS Site to explore more http://msdn.microsoft.com/en-us/library/7a9d6h4f(v=vs.100).aspx — Neeraj
– Neeraj, Commented Jul 25, 2013 at 13:08
@AntonBelev because gridview can send CommandArgument with controls. — YaakovHatam
– YaakovHatam, Commented Jul 25, 2013 at 13:15

emerson.marini · Accepted Answer · 2013-07-25 13:01:07Z

32

It's perfectly possible:

myCkck.Attributes.Add("Value", "blq blq");

string chckValue = myChck.Attributes["Value"].ToString();

answered Jul 25, 2013 at 13:01

emerson.marini

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1 Comment

Anton Belev Over a year ago

Thank you. That is working. I've used a few times and I had some problems with persisting values of custom attributes to view state or sth like that. I don't really remember what was the problem, but I still have some concerns when using this methods. Anyways at the moment it seems to work for me.

KnaperKrisp · Accepted Answer · 2013-09-19 12:39:10Z

5

You could create a new class that inherits the CheckBox class (or any other control class for that matter) and add any further properties you need to the derived class. That way you would get an extended CheckBox more or less.

public class ExtendedCheckBox : CheckBox
{
    public string Value
    {
        get;
        set;
    }

    public ExtendedCheckBox : base()
    {

    }
}

answered Sep 19, 2013 at 12:39

KnaperKrisp

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