I have a Interface for CRUD operations.and some classes implemented it.I want to design a user control that have two buttons:insert and delete,to reuse this control over my forms.this class must have a instance of my interface to do insert and delete tasks (if I'm right).this is my interface:
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my problem is,i can't declare a property of type ISchoolSystemRepository in user control,because i must pass T for interface.
I created user control. It exposes string[] public property (it may be List<string> or whatever). I want to support defining this property in aspx code, when declaring the instance of this usercontrol. Something like this:
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I have an Interface that has its concrete class defined via a factory. Because of this I found no way to use the Interface tpye directly in my LINQ quesry so I had to use the concrete class types to creat a generic list. The LINQ query works but after calling.ToList() on the LINQ query result I get a List(of MyConcreteClass), but I need a List(of IMyConcreteClass). I have tried everything I can find: .Cast, Ctype, implicit casting, etc. but I always get back one of the (2) messages (depending on if I attempt to cast)message:
"Unable to cast object of type 'System.Collections.Generic.List`1[MyConcreteClass]' to type 'System.Collections.Generic.IEnumerable`1[IMyConcreteClass]'."
...or
"Unable to cast object of type '<CastIterator>d__aa`1[IMyConcreteClass]' to type 'System.Collections.Generic.List`1[MyConcreteClass]'."
Here is the sample code:
[Code]....
1) I have a project where I have both C# and vb coding programs. So on compilation which will be compiled first vb or c#.
2) I have interface in which i declare a property with only getter method (not readonly).I implement this interface, then how could I set the value of this property.
i have a dropdown list with values
America
Asia
Europe
I need to the display the ddl as Select Type and when i click the dropdownlist to see the values in it, it should display the three values, but i should not use Select Type as a list item and it should not be displayed in the list. It should only be used as a default text in ddl.
Is declaring a constructor private or declaring a class sealed is same thing?
View 1 RepliesI've created a UserControl with the following public property:
[Browsable(true)]
public string Text
{
get { return pnlLookupTable.GroupingText; }
set { pnlLookupTable.GroupingText = value; }
}
pnlLookupTable is, as you may have guessed, a Panel control. I can change the value of the Text property in the Properties window and it's reflected in the markup like it should be. However, the design view of the UserControl inside a page does not show updated GroupingText for the Panel. How can I get this to happen?
EDIT:
By request, here is the entire class to which that property belongs. You can see there's nothing special going on:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
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And here's the relevant part of the .ascx file:
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="LookupTable.ascx.cs" Inherits="LookupTable" %>
<asp:Panel ID="pnlLookupTable" runat="server" GroupingText="Lookup Table">
<%-- Irrelevant content here. --%>
</asp:Panel>
I have changed some identifiers and other trivial things to protect the proprietary nature of the code.
I should also reiterate that I'm looking at a Web form in design mode that has my control added, and I'm changing the Text property. I want to see the change to the Panel's GroupingText visually in the designer.
Is it possible to use InvokeMember() of Type class to call a property of a property of a class?
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I am getting error message: The value '31/12/2050' of the MaximumValue property of 'RangeValidator1' cannot be converted to type 'Date'
Asp.net pages were working fine before but after reinstalling the VS2008 on new machine and copied the old pages to new machine i am getting this error message.
I'm receiving the following error on this code and I can't seem to find the solution. "CS0118: 'System.Web.UI.Page.User' is a 'property' but is used like a 'type'"
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When I create buttons in my Details View using the AutoGenerateEditButton they are created with Links. Is there a way to change this to Buttons?
View 2 Repliescan we bind any type of System.Collection to DataSource property of a DataGrid ?
View 6 RepliesIs it possible to display the data type of an entities properties in the Designer? For instance I have a dateofbirth property for my Person Entity. In the designer I want it to show "dateofbith datetime"
View 1 RepliesI use LinqToSql in my project. I have a class called MessageBLL and this class has a method called GetAll which returns List<object>. I returned object because I get data from two tables. Here is my code;
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I want to use this in my Default.aspx.cs as like this but intellisense is not show CategoryName :[Code]....suggest me return as IQueryable but I couldn't do it in that way.
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How can i get full name of the property ?
I am trying to set property value using reflection as below. I wanted to know if there is any generic way of finding the property type instead of doing it int he below way.
string currentlblTxt;
string currentTxt;
Assembly assembly = Assembly.GetAssembly(typeof(myAdapter));
myAdapter currentEventObject = (myAdapter)assembly.CreateInstance(myClassName);
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I have a page with a textbox. User enter the WCF Service URI and my program get the method names and the parameters. Then user enter the values and I want to dynamically call the method with passed parameter values.
how can I dynamically set the value of a property for a given object? For example: I have a method GetInfo(string name, Color favcolor) where name is string and favcolor is of System.Drawing.color type. How can I set the color attribute dynamically with user supplied value.
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The last line is currently throwing an error
Object of type 'System.Drawing.Color' cannot be converted to type 'System.Drawing.Color'.
I am writing unit tests for fluent Nhibernate, when I run the test in isloation it passes, but when I run multiple tests. or run the test more than once it starts failing with the message below System.ApplicationException : For property 'Id' expected '1' of type 'System.Int32' but got '2' of type 'System.Int32'
[TextFixture]
public void Can_Correctly_Map_Entity()
{
new PersistenceSpecification<UserProfile>(Session)
.CheckProperty(c => c.Id, 1)
.CheckProperty(c => c.UserName, "user")
.CheckProperty(c => c.Address1, "Address1")
.CheckProperty(c => c.Address2, "Address2")
}
I've seen various controls in ASP.NET with "collections" of objects, which you can use markup to define. For example:
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<Triggers>
<asp
/Triggers>
</asp:UpdatePanel>
In the above example, you can add any number of triggers, and they can be of any type that extends UpdatePanelTrigger. I'd like to do something similar, but with only a single item instead of a collection
I am using Visual Studio 2010 for the first time. I program in MS Access for a long time at decide to move to the ASP world. My problem is that I design my first web .aspx default page with a simple data grid. I decided to connect the data via the business object data adapter. I use the Dataset designer to great the dataset. All looks well and works fine on my PC. But when moved to the server I get the Terror "The type specified in the TypeName property of ObjectDataSource not found".
From my reading for the past two days, it seems that something need to be define (a class of some sort) to let ASP know where to find the data adapter. If this is the case, then why did not Visual Studio 2010 did not automatically build the class in the appropriate BIN/ APP_CODE or Global directory and more importantly, why would it work fine on the PC , but not on the server. I am totally blind-sided by Visual Studio 2010 allowing me to design and test on PC but throws me a curl ball with moving to a server. Am I assuming to much from Visual Studio 2010???
What is the solution.. What I am looking for is to know where exactly where and how to write this class. I am so new to ASP, all of my reading just confusing me more and more by reading so many post on this error. I know it is probably a simple class to write somewhere, but why did not Visual Studio 2010 write it accordingly.
I have 1 function that reah all components of the page that call this function.
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in this function I set enabled Property of components via parameter "en" but I must cast the object to type manually I want to clear swith statement and change it to 1 line for example: [Code]....
I'm trying to understand when to use the type property and when to use the dbtype property. I looked online but couldn't find a good article that said when and why.
View 3 RepliesI want to pass a property of the type System.Uri to an WebControl from inside an aspx page.
Is it possible to pass the property like that:
<MyUserControl id="myusercontrol" runat="server">
<MyUrlProperty>
<System.Uri>http://myurl.com/</System.Uri>
</MyUrlProperty>
</MyUserControl>
instead of:
<MyUserControl id="myusercontrol" runat="server" MyUrlProperty="http://myurl.com/" />
which can't be casted from System.String to System.Uri EDIT The control is a sealed class and I don't want to modify it or write an own control. The goal is to set the url-property which is of the type System.Uri and not System.String.
How can I create a UserControl with a collection-type property which has a collection editor?
I've a CompositeControl with an ArrayList-type property which has CollectionEditor-type designer. You can see this property on Properties window with a "..." button which launches a collection editor. This works fine and all but I want to apply the same to a UserControl and I've couldn't manage to pull it off so far. I've done the same thing what I've done with my CompositeControl but the property either doesn't even show on Properties window of the UserControl or shows as a single value property with no "..." editor button.
This is what I've done with CompositeControl:
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What is the use of declaring the static class. I know that we cant create the object for the static class but i want to know that is the use of creating the class as static.
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