Web Forms :: How To Initialize Web Part?

Mar 9, 2011

i create a web part in the code behind page and i didn't nkjow how to
initializes

[Code]....

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see this code:

[Code]....

While in constructor i am gettine error, Aobj(0).type is not initialized, it says that Object reference not set to an instance of an object. how to initialize my objects?

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Below is the code:

[code]....

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[Code]....

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I have some code I only want to execute the first time I display a form. With this in mind I created a class variable which I initialize the first time I execute page load.

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I want to add a class and initialize a JS funcion behind my nested masterpage which is being dervised from an other master page. But when I add the following code in the PageLoade event in the code behined of my derived page then it give the folowing error

Exception Details:

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CODE-

[Code]....

[Code]....

[Code]....

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Edit :

For example : I don't want to use Page_Load but LoadThisPage naming. So It should be like

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I have - for instance - an asp:FormView which supports Read, Insert, Update, Delete and is bound to a DataSource:

[code]....

If I am in Read-Mode or Edit-Mode the control is initialized with the property MyText of the current object which is bound to the FormView.

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If I want to have my TextBox control initialized with a specific value how can I do that? In which event can I hook in to set default values to the controls in the InsertItemTemplate?

Especially I have in mind using an ObjectDataSource. I was expecting that the InsertItemTemplate is initialized with a business object which underlies my ObjectDataSource and which is created by the ASP.NET framework simply by using its default constructor when the InsertItemTemplate gets activated. In the default constructor I would init the class members to the default values I'd like to have in my controls of the InsertItemTemplate. But unfortunately that's not the case: No "default" object is created and bound to the FormView. So it seems I have to initialize all controls separately or to create the default object manually and bind it to the InsertItemTemplate of the FormView. But how and where can I do that?

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Code:
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[Code]....

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I have a site that uses ActiveRecord. I'm getting an exception that says "An ActiveRecord class () was used but the framework seems not properly initialized. Did you forget about ActiveRecordStarter.Initialize() ?" This is a web application, and the Initialize() method is called by the Application_Start event handler.

I created a new page that also calls the initialize() method. If I visit that page once, then the rest of the site works. If I visit it a second time, I get an exception stating that the Initialize() method can only be called once.

I've tried modifying the web.config and resetting the application pool to force Application_Start to run.

This only happens in production; dev, my stage, and client stage are fine. Production is the only load-balanced environment--I'm not sure if that comes into play.

Edit: We have another site deployed in the same environment which successfully uses ActiveRecord with the same initialization code. One difference is that the site that is working has only the ActiveRecord code in Application_Start; the site that doesn't also sets up some URL routing in Application_Start.

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Can Initialize Var With Null Or Some Empty Variable

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Can i initialize var with null or some empty variable.

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I am using a Telerik combobox and using jquery to make a clone of it.

the control is being rendered correctly, however the dropdown is not working I believe due to the fact the javascript has not been initialized on the control.

Is there a way to do this or a better way to make a duplicate of the control?

I may have to resort to making an ajax request but would ideally like to keep it all clientside.

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I have an automatic property

public int GearCount { get; set; }

when i try to initialize it like this-

Tandem t = new Tandem(GearCount = 5);

It gives an error as below

The name 'GearCount' does not exist in the current context

Whats wrong here ? Also if i do normal intantiation it works fine.
Tandem t = new Tandem();

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How can I write the C# code (aspx) to initialize the user control with some default property values? I mean where/which event? I have a user control with a gridview that I bind on container page. On page load of the container page I bind the data. I tried writing the initialization code in initproperties but it didn't work. Please suggest where can I set the default values for my usercontrol?

Edited:As suggested by DOK.. I already have a property and I change width of one of the DIVs. Here is the code that is not working.

public int CollapsiblePanelWidth
{
set[code]....

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