.net - Create A Usercontrol With Properties Set From Page When That Property Is A List?

Aug 10, 2010

I am building a usercontrol which can display data with many flags. I would like to be able to able to declare it this way, or something similar to that from the asp.net page

<ctl:DisplayItem runat="server" id="ctlTest">
<flagIsAvailable />


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Can anyone add a complete input about how to create Parent Property with multiple child properties or in short nested properties.

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As soon as Rainbow property is typed, user should get intellisense for list of number of colors. Then accordingly user can select list of those colors and assign a value to them.

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So what I'm trying to accomplish is this


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For some reason the values are always empty strings or 0s in the usercontrol, no matter what the page property is.

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Jul 17, 2010

This is page load

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I have several usercontrols which are loaded based on business logic.However, all of them have webcontrols whose selected/entered value needs to be accessible in parent page on an event.Since there can be any combination of UserControls, I do not want to load all the UserControls in the Parent Page, since they are heavy.

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I am trying to create a User Control that accepts a generic List of CustomObject as a bindable property.

I'd like it to look a little somthing like this :

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Jun 4, 2010

I'm trying to change a Label's text property and colour properties depending if an event occurs on the page behind file.

Does anyone have a similar issue?

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Jan 10, 2011

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I have some user controls which have properties which need to be set from a form on the page

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Currently the code complaing about Property3 saying it cannot create an object of Int32 from '<%=Property3%>' and Property4 always gets set to 0 (the default)

I do not wish to use the c# code to set these values as this Plugin will be deployed with a CMS which I have no control over

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Jan 10, 2011

when I add a custom usercontrol by code like this:


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Dec 13, 2010

I currently have a repeater control and inside the itemtemplate I have a usercontrol. This usercontrol renders correctly, but I am trying to assign a dataitem to a property in the repeater control.


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I can put the eval outside of the usercontrol just in the itemtemplate and it correctly outputs the right id.

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I have a user control in asp.net that i need to dynmically set properties for. The propety and property values are in a dictionary, for example:

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I can currently set the properties on the control using reflection, however, with .net 4 and the new dynamic keyword, is there an easier way to do it, for example, something like this:

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Jan 28, 2010

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Here is how I use the control in a gridview on the host page:


As indicated by the comment, e.CommandName always returns an empty string.

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Mar 31, 2011

I have developped a usercontrol, but I can't seem to find how to databind on a property of the usercontrol in a detailsview.The property is defined this way:

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Dec 20, 2010

I am working on a project where we want to keep a history of a particular object. On save I want a method on the object that will determine if it has changed so that I can call a method to save its current state to history. E.g. I populate a form from an object the user makes changes (or possibly not) and submits the from. I want to take my original object and a copy of that object that has been updated from the form and determine if it has changed at all. Additionally I may decide at some point that certain properties don't matter (e.g. if Name changes I won't track it).

I'm thinking the easiest/most flexible way to accomplish this would be if I could give the properties I care about a custom attribute [ChangeTracked] and then I could use reflection to get a list of all properties with that attribute and loop through them comparing A.property == B.property to determine if any have changed.

Would this work? Is there a significantly better/easier way to handle this, like some sort of built in method you can add to an object to determine if the values of any properties have changed? Whatever the solution some psudo code would be appreciated. Just as a point of clarification the solution needs to determine if the value I care about has actually changed not just if it has been assigned since it was created i.e. if I set Name="bob" and it was already "bob" before my assignment this does not count as a change.

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I'm using VS2008 if it's make the difference.

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Jan 24, 2011

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this is about ASP.NET, ViewState, UserControls and loosing the values of my properties. It is an classic question by know, I know, and even though I have searched here and on Google for a resolution to this problem, I havent succeeded. On the contrary, the more I test different things, the less I understand it seems.

On top of this I am using ext.net and their so called DirectMethod's but I dont think that has much to do with this problem. There are numerous questions I have and I hope that this text will be fairly readable and understandable =)

The UserControl

I have a UserControl, Customers.ascx, that contains some Properties. The "most" important is *_CustomerId*. The _CustomerId is set in code-behind, in ext.net's "DirectMethod" like this (code below from the Page Customers.aspx):


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I just started learning silverlight by creating a silverlight application in Visual Web Developer 2008. I have a public property defined in the user control. How do I access this property value in the aspx codebehind page?

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I have a function that Localize the text of my control.

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I am trying to bind a string that contains the ClientID of one user control to the property of another control within a GridView template column. I get the error 'lblVar02' is not declared. It may be inaccessible due to its protection level. How do I do this?

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<uc:Label ID="lblVar02" runat="server" />

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Apr 12, 2010

I have this public property in the codefile of an aspx page:


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