user-controls

Why dynamically created user controls disappear when controls are not doing full postbacks?

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Based on my current understandings, when you have an UpdatePanel control there is no full postback. Therefore if I dynamically add custom user controls and they have UpdatePanels that are updated in their code they shouldnt disappear from the page they are loaded into, right? Apparently not. I made a simple project to test and still my dynamic controls disappear when clicked even though they should not be triggering a full postback. I have an aspx page that loads the controls:

Techniques For Distributing ASP.NET User Controls Across Projects

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Distributing ASP.NET user controls across different projects can be really useful when you want to create a library of controls that can be used by different projects. Unfortunately, to my knowledge, ASP.NET (2.0 at least) doesn’t support this very cleanly. The only technique I know of is to add the control to another project, then … Read more

Properly referencing controls in ASP.NET user controls in JavaScript

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I have an ASP.NET user control that contains a text box control and a button control. This user control will be added to my web-page many times. I need to have a piece of JavaScript that will run whenever the text box changes, and disable the button if the value of the text box is invalid. My question is this: how do I put JavaScript on the textbox that can reference only the button that is in the same user control? Remember, there are many ASP.NET user controls, each with a button and a text box, and I only want the invalid value in a text box to affect the one associated button. Thanks!