Valve control - user controlled, then self controlled

Valve control - user controlled, then self controlled

Post by Jmc00 » Fri, 04 Aug 2006 11:40:06

Hello, I am still trying to figure out a method of controlling a discharge valve for compressor testing.  The valve is controlled by a slider, but when it hits a certain point of being closed, the compressor surges.  At that surge point, I want the user to click a button, and then have the valve slowly open while the data is being sent to a file.  This way, the data is recorded and the valve opens to prevent damage to the compressor all at the click of one button.  I have the VI up and running, all except for the opening part of the valve.  I have included a simple example of where I am going with the valve control.  Any advice would be appreciated, for then I can implement that code for the valve opening into the rest of my programming.
Thank you,


1. persisting changes to a control outside a user control from the user control?

2. using javascript in User controls to access server controls of the user control

Hello all,
I have an textbox (named txtHidden) and an HtmlButton(named
btnAction). I wanted to write a javascript function which will get called
when the btnAction is clicked. The function is as follows

function HideText()
document.all.item("txtHidden").style.visibility = "hidden";

This function works fine when i run it in an page.
The problem is that it doesn't work inside a user control. i.e. lets say i
place the two controls and the javascript to work on them, in a user
control(say MyUC), then the statement document.all.item("txtHidden") does
not return anything.

After a bit of effort i've been able to identify that when a user control is
placed on a page,, while rendering the page appends all the child
control of a user control with the client id of the user control to avoid
naming conflicts. So after the page is rendered the id of "txtHidden" is
changed to "myUC1_txtHidden".
Since at the design time of UC we dont know the ClientID of the user
controls, therefore this makes it impossble to write javascripts in a user
control, which is exactly what i want to do.

Any help will be highly appreciated.

Faizan Ahmed

3. User Control to Control Other User Control

4. Change web controls in one user control from another user control

5. Self refreshing user control/custom control.

6. this.Controls.Add(Control) Does Not Add Control to child collection (this.Controls.Count == 0)

7. Showing 1 control inside a 2nd control where the 2nd control is a derived control.

8. using controls in user control as control parameters on parent pag

9. ASP.NET Templated User Controls - Limit child controls allowable within a templated control

10. using controls in user control as control parameters on parent page

11. using controls in user control as control parameters on parent

12. Controls.Add() for a Web User Control doesn't instansiate its child controls

13. Dropping controls in a User Control ges added to parent control

14. Dynamic Controls in User Control; page/control lifecycle question

15. Traversing children controls of user control get extra controls