ID/Name of controls in UserControl [resolved]

[Danial]

Hi,
I am creating some custom ASP.net controls as Web User Control.I have client side scripting within those control. Now when i place those control with in an aspx control the Name/ID of the element(textbox, buttons) are renamed with a prefiex e.g ControlName_.

Now since the ID/Name of the control has been changed now my client side script wont work. For example if i have a control called txtInput and my Web User Control is named AddEvent, txtInput is now renamed as AddEvent1_txtInput.

How can I refrence this txtInput ?


Thanks for any help.

BTW : I am using C# as my ASP.net language.

[DHC Web Hosting]

There are a few different ways to handle it depending on what you are trying to do.

If I remember correctly, all you really need to do is write a javascript variable from ASP.NET that contains the name of the FIRST control (or use a hidden field). Then you know every subsequent control will be name_control2..3...4...
So you just plan for that in your Javascript code.

There is also a rendering output for the ASP.NET control, so you can use that to inject javascript code directly into ASP.NET. Therefore, you can just have ASP.NET create a Javascript array that contains all instances of the control names. Then javascript can use that array.

There is also a .NET class (dont remember the name) that allows you to inject javascript into the page in a more manageable way. It is documented in the help, but it is a little hard to find and I cannot remember the exact name of it.

Hope this helps...

[Danial]

Fuond a easier way. The property ClientID gives the modified name of a given control.

[DHC Web Hosting]

Hmm I must have misunderstood you, because if you solved it with the ClientID property, then it sounds like your problem was more how to know the instance name in ASP.NET rather then how to tell Javascript the instance name. I guess once you knew the instance name in ASP.NET, you already knew the rest of the solution.

Now since the ID/Name of the control has been changed now my client side script wont work.

The way you described it, I assumed your problem was more how to reference the control from Javascript, not from ASP.NET. The problem would still exist of getting the ASP.NET name back over to Javascript until "ASP.NET sends Javascript the name" such as in a list of names in an injected array or by using ASP.NET's javascript rendering class/injector.

I guess your problem wasn't "teaching" Javascript the name of the control, but rather getting the "INSTANCE" name of the control from ASP.NET itself?

[Danial]

The way you described it, I assumed your problem was more how to reference the control from Javascript, not from ASP.NET. The problem would still exist of getting the ASP.NET name back over to Javascript until "ASP.NET sends Javascript the name" such as in a list of names in an injected array or by using ASP.NET's javascript rendering class/injector.

I guess your problem wasn't "teaching" Javascript the name of the control, but rather getting the "INSTANCE" name of the control from ASP.NET itself?

I simply store the Instance name of the usercontrol in a variable, and dynamically prefiex the id to my javascript code.