Can somebody justify this statement with example: delegates represent methods that are callable without knowledge of the target object. i am not getting how we are hiding the function name at the UI.
View 4 RepliesI get following error: Target string size is too small to represent the XML instance
When I do this: repeater.DataBind();
How can I avoid this?
If I have the following code:
TextBox txtUsername = new TextBox();
void setEnabled(string str, bool enable)
{
// use str to find the TextBox object
// str.Enabled = enable;
}
Is this kinda thing even possible? I want to be passing in 'Username' and then be prepending it with 'txt'.
hav a gridview, it works when old entites are in the collection because all of these are proxies of the real entity.But if i insert a new Entity using context.User.AddObject(user);context.SaveChanges();The databind to the grid crashes with error, "Object does not match target type", because the old object are proxies of the real POCO, while the new object is of Type User
View 1 RepliesI'm teaching myself web services at the moment and I've hit a bit of a stumbling block:-I've implemented a set of services for ordering shutters.These services use an underlying object model consisting of an order and a shutter class.The CreateOrder Service returns an order object and I now want to be able to add shutters to it by calling myOrder.Add(myShutter).
The problem is that the asp.net site I'm using to test it can't "see" the Add method on Order. If I browse the object tree I can see the Order Object but when I drill into it no methods are visible. Is this something to do with the way I've added th reference. edit> I just found the class in the "Reference.vb" file and aded this to it:-
Public Sub Add(ByVal Shutter As Shutter)
End Sub
Just about to test that. edit>I found this site and what he sugests fixes the problem but...I've had to add a local reference to the ObjectModel project to the web site. That seems wrong to me. It's not a web reference so how will this work in the real world. Once I actually deploy the service a project on a remote client isn't going to understand a local reference is it?
I have a user control with a number of methods. I also have a dataset object that I'm filling in one method, but I also need to access that same dataset (and the data in it) in another.
I am filling the dataset from some xml that I get from a webservice when someone clicks on a button. The data from the dataset is then bound to a listbox control. When someone selects an item in the list control (I have autopostback set to true on it) it then fires off another method and it's this method where I need to access the data in the dataset, but when I check the immediate window it's telling me that the dataset is set to null.
Where am I going wrong?
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How does one be called a ninja ASP.Net programmer? What set of tools and immediate knowledge(Without having to open MSDN, SO, or Google) should be known to be considered a master?
View 11 RepliesMSAJAX: overrides of toString() and other Object methods do not propagate to derived classes
View 1 RepliesI want to implement Knowledge Management System in SharePoint.
View 1 Replieswhat is the use of delegates. why we use delegates.
View 1 RepliesI am using Visual Studio 2005/ asp.net 2.0.
I am planning to develop a knowledge base web portal.
any links/references for the same having good and simple design.
I want to save the *.docx and *.* type in client side, how to save the files from server to client without any promt to users.
View 1 Replieswhy delegates are using in event handling?what is the advantages of using delegates in event handling?
View 4 RepliesWhen i run my asp.net web application i got this error,
An error occurred loading a configuration file: Failed to start monitoring changes to 'Z:CR-IRSTapp_codemodel' because the network BIOS command limit has been reached. For more information on this error, refer to Microsoft knowledge base article 810886. Hosting on a UNC share is not supported for the
Windows XP Platform.
I have a standard web app. My default page has a WebMethod and the WebMethod gets invoked by Json from client script. On my webForm I have an area that displays messages to the user showing the stage in the process and this is just a <asp:label>. if The webmethod had been a standard method, I would simply have done something like myLabel.Text = "sometext". However, the webMethod knows nothing about the label and so I need to bubble the value to the form. If I had called the webmethod from the codebehind in the form I may have been able to use delegates/events, but the call was made by the client, so I have not wired the webmethod up to any codebehind. How do I push my text back to the form in an asyncronous manner. So the code works in this way: Form load populates some controls on the client. The user perfoms some drag and drop then presses a standard html input button that calls a client ajax/json method passing the dragged values to the webmethod. I then need to feed back to the screen at several points in the webmethod process to inform the user of the current status.
View 5 Replies[Code]....
How to bind multiple delegates to an event?
I have an ASP.NET application and need to use some COM components inside it.
I need a wrapper class over Func or Action which creates a new STA thread and run the delegate with that thread or something like this. Do you know such a class or library out of the box or a sample code ?
CodeUsingComComponent.InvokeSTA()
Presently i used user control in my total application. i wrote single delegate , single event in to forms like this.
In User Control :
public delegate void onCloseClick();
public event onCloseClick OnCloseClick;
In Form :
In form load i declared --> this.devXToolRibbon1.OnCloseClick += new UBS.Phoenix.WinForm.Common.DevUI.DevXToolRibbon.onCloseClick(devXToolBar1_OnCloseClick);
i implemented event like this...
void devXToolBar1_OnCloseClick()
{
Form.close();
}
i know this much only about delegates & events... when we will bind multiple delegates to an event?
I'm using the mock framework to unit test some methods. I came across some methods that use delegates. I did not find a way to setup these delegates to return the objects that I want. The mock framework does not support it as far as I know. Is this supported in other mock frameworks like nMock?
View 3 RepliesI have an extension method as follows:
public static class PageExtensions
{
public static int GetUserId(this Page targetPage)
{
var user = Membership.GetUser(targetPage.User.Identity.Name);
return (int)user.ProviderUserKey;
}
}
Now in a page I need to use this method in a static WebMethod, so I have added another 'extension method' to PageExtensions:
public static int GetUserId()
{
return (int)Membership.GetUser(HttpContext.Current.User.Identity.Name).ProviderUserKey;
}
and I call it as follows in my WebMethod: PageExtensions.GetUserId()
public class CacheHelper { /// <summary> /// Removes object with the specified key. /// </summary> /// <param name="key">The key.</param> [code]....
I have this methods for caching..I need to change this methods to use in aDictionary<string,object>
How do I need to change this code Because I am new to asp.net I am still learning..
I'm a novice developer writing an ASP.NET application with VB. I'm having a little trouble getting my head around the partial class concept. If you use the partial classes as a code-behind for the presentation, how would these be represented in UML, in particular with a class diagram?
View 2 RepliesI'm using a text box in a template field to perform an insert with an object data source. What exactly does the "ProductID" refer to in this example? Is it the column in the db or the business object?
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how to create C# classes to represent one to many relationships in C#. I have a Customer and an Address table in my database. I also have a Customer class in my C# solution but how do I introduce the multiple address element? Do I have a separate Address class? Do I create a subclass in the Customer class or create a method in Customer called GetAddresses of type List which contains all of the relevant logic? In my code I need to be able to return a customer with all associated addresses and I just cannot picture the best way to achieve this using OOP.
View 9 Repliesi'm new with design patterns and i'm not sure if in this situation i can use a composite pattern.
The scenario is a web application for an address book : the address book cointains AddressBoookItem, generalization for Contact and ContactGroup. The last one is the composite object containing a collection of AddressBoookItem.
With these scenario i'm sure that this is a composite pattern, but what is confusing me is that a contact may belong to many contactgroup. Does this request change the situation? Till now i thought that between the Leaf object and the Composite (in the composite pattern) there was a 1-to-m relationship (a composite may contains many leaf but a leaf is contained in only one composite object). Can i still use the composite pattern ? And, the last question,
How could i represent my scenario in a relational database? One table for the entire hierarchy or two table (Contact and ContactGroup) with a m:n relationship between them ?