ADO.NET :: Overriding A EF Object Property Set?
Dec 7, 2010
I've generated an entity framework class to handle my users from a custom db table. Now I'd like to override the password property of the EF object to Encrypt the value when it is set. From what i understand of MVC this should be done in the model where the EF object lives. I am able to do this easily in the controller but that doesn't seem like the most appropriate place as it will lead to duplicate code anywhere that needs to edit this user class. Is extending the partial class generated from EF possible for generated DB column properties?
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May 3, 2010
Traditionally with an Object Data Source, the wired up class will have its public properties available for binding (i.e. Gridview columns, etc.) which works well. But what if one of my wired up business objects has a property that is an object itself; can I drill down to a property on that object property and still use it?
So in additiona to the traditional:MyBusniessObject.OrderID...I want to use:MyBusniessObject.Customer.NameID
Your 1st response might be to just wire up the 'Customer' class, but I need properties both on 'MyBusinessObject'and 'Customer'. I do not think this can be done, as the ODS will not display properties on an object instance property. I have tried manually typing in the drilled down value as well, but that wasn't a success either.
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Nov 15, 2010
I have some (probably very basic) questions about developing custom controls. I am wanting to derive a set of button controls, and the first one I have started on is a "DeleteButton", that has a additional property (DeleteConfirmationText) that is built into the OnClientClick attribute. To get that added, I overrode the Render method as follows:
[Code]....
This all works well. Now, I will add some logic to make sure that there is some text in the DeleteConfirmationText property, but that isn't the intent of my question.
What I am also wanting to do is to override some of the default property values, so I added that to the default constructor:
[Code]....
Now, in the designer in VS2008, and I look at the properties for the control, there isn't a default value shown in the "Properties" section, and the Causesvalidation still shows the underlying classes default value of "True". As well, in design mode, where the GridView control that containse my DeleteButton control would be displayed, there is an error box "There was an error rendering the control. 'Are you certain you want to delete this attorney?' cound not be set on property 'DeleteConfirmationText'. Here's the markup where I am defining the deletebutton control:
[Code]....
What am I doing wrong?
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Jan 11, 2010
I have a scenario where and array consists of values of different types.
During runtime I need to cast the current index to its type to get its property value
for eg: I have an array events[100];
the current index events[i] could be of any type say TYPE1.The TYPE1 could have multiple properties.During runtime, while iterating, I need to get all the properties and values of TYPE1 by casting the events[i] to the specific type, which I form as xml string and pass to DB.I'm at loss what way of reflection would achieve this.
P.S: I dont know the property of current index at runtime, which is why I'm collecting all the properties and dumping in DB.
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May 30, 2010
I have a business object that looks like this:
[Code]....
What is the value of SomeId after I create an instance of my object? I was testing it with SomeId == 0 but it wasn't working. Then I tried null which gives me an error.
What is the right way to handle this? Am I to assign an initial value to my objects' properties in the object? If not, how do check if my object has any values assigned to its properties -- in particular, int values?
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Aug 10, 2010
have a table releases with release id and release name and the child table as Sprint. But I am getting an exception while the page loads saying the property or object name release id couldnt be found
public
partial
class
Default2 : System.Web.UI.Page
[Code]....
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Sep 18, 2010
Action:
[Code]....
View:
[Code]....
But error raised "object does not have property Name". Why?
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Jun 6, 2010
In an ASP.NET 3.5 VB web app, I successfully manage to cache an object containing several personal details such as name, address, etc. One of the items is CreditNum which I'd like to change in the cache on the fly. Is there a way to access this directly in the cache or do I have to destroy and rebuild the whole object just to change the value of objMemberDetails.CreditNum?The cache is set using:
Public Shared Sub CacheSet(ByVal key As String, ByVal value As Object)
Dim userID As String = HttpContext.Current.User.Identity.Name
HttpContext.Current.Cache(key & "_" & userID) = value
End Sub
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Jan 20, 2010
I'm currently using a GridView and I want to set the CssClass for the Row depending on a property of the object that the row is being bound to.
I tried the following but it does not work (see comments):
[code]...
Now I could simply handle the GridView's RowDataBound event and change the css class of the row there...but I'm trying to keep a clear separation between the UI and the page/business logic layers.
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Jul 20, 2010
I am trying to get an asp:SessionParameter of a SelectParameters, to use a property of an object in session
instead of having a string in the session like Session["CustomerID"]
Something like Session["Customer"] where the property is ((Customer) Session["Customer"]).CustomerID)
My code:
<asp:sqldatasource id="SqlDataSource1" runat="server" connectionstring="<%$ ConnectionStrings:DBConnectionString %>" xmlns:asp="#unknown"> SelectCommand="SELECT * FROM getStoreCustomers (@customerID,@week,@day)"
ProviderName="System.Data.SqlClient">
<selectparameters>
<asp:sessionparameter name="customerID" sessionfield="Customer" /> ?????? (what is the syntax to pass the property here?)
<asp:controlparameter controlid="ddWeek" defaultvalue="-1" name="week" propertyname="SelectedValue" /> <asp:controlparameter controlid="ddDay" defaultvalue="-1" name="day" propertyname="SelectedValue" /> </selectparameters>
The class I use is like any other class (but serializable)
[Serializable]
public class Customer
{
public int CustomerID
{
get;
set;
}
}
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Jan 21, 2011
I'm trying to reference a public property from a string. How can this be done in vb.net? I have the text value of "FirstName" stored in strucParam(i).TxtPropertyName.
This is what I'm currently doing:
Dim tmpValue As String
Dim ucAppName As UserControl_appName = CType(Parent.FindControl(strucParam(i).ParentFindControl), UserControl_appName)
tmpValue = ucAppName.FirstName.Text
How can I use the value in strucParam(i).TxtPropertyName so that I can remove ".FirstName" from my code?
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Apr 22, 2010
public class InvestorMailing
{
public string To { get; set; }
public IEnumerable<string> Attachments { get; set; }
public int AttachmentCount { get; set; }
public long AttachmentSize { get; set; }
}
i have an IList<InvestorMailing> mailingList. if the attachment size is greater than x, then i need to split my object into chunks. is there an easy linq-y way to do this?
[Code]....
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Jul 7, 2010
I have a class named PageBase inheriting from ASP.NET Page. I want to do something in PageBase's Page_Load.All pages in my application have their logic done on their Page_Load. I'm thinking of a way that Page_Load of both of PageBase and other pages run without having to override Page_Load in pages. Is it possbile?
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Aug 10, 2010
I'm beginner in AJAX. I was developing an ASP.Net Web-Site (MVS 2008, ASP.Net version 2.0.50727), so on current step I need pop-up windows with server code functionality. I decided to try AJAX. I have downloaded the latest version AjaxControlToolkit.Binary.NET35, added dll to Bin folder, and writed code as:
[Code]....
I use ScriptManager coz I can't compile project with ToolkitScriptManager. When I start web site I can't get the expected result, only I get script error message like "Object doesn't support property or method".
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Oct 5, 2010
trying a sample from the jquery template plugin. Getting an error:
[Code]....
what do I need to run the templating plugin?here are my script includes ( I added the jquery.tmpl.js file as an existing item to the scripts folder of my MVC project )
[Code]....
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Feb 5, 2010
I have a list <Department> say Company.Departments with object Manager and ManagerId, ManagerName as property of Manager. I would like to fill the dropdownlist with managers as below
ddlManager.DataSource = Company.Departments;
ddlManager.DataTextField = "ManagerName";
ddlManager.DataValueField = "ManagerId";
Is there a way to specify the property of an object in DataTextField or I need to copy a Manager list for the DataSource?
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Mar 28, 2011
I use a function which contains object type parameter. I want to get name of this unknown typed object's properties. How can I do this?
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Jul 28, 2010
Some strange problem have occured while developing application. Some WCF webservice returns object with date property.On client this web service is called using Jquery.ajax.Then result is parsed using json2.For date I simply use following expressions:
var reMsAjax = /^/Date((d|-|.*))[/|\]$/;
a = reMsAjax.exec(value);
if (a)
var b = a[1].split(/[-+,.]/);
return new Date(b[0] ? +b[0] : 0 - +b[1]);
unfortunatelly if browser timezone differs simple new Date with milliseconds not works.Time will be based on timezone.
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Mar 28, 2010
I'm having a problem with a class library I'm building. I have a class called Users and inside this class I have a property called UserInfo that is an object. Both of the classes Users and UserInfo are built using MyGenerations dOOdads. When I create an object instance of the Users class I am able to access the UserInfo property without a problem in my Windows App, however when I using the same library in a website the UserInfo property continues to return a no reference error. Like I said when running it in a WinApp I have no problems at all, I can access the UserInfo property and likewise all of UserInfo's properties. I am also having problems trying to debug the library using the website. And again I have no problems when using the WinApp. The way I've set it up is I have the Class library project open, and then I add the WinApp project and then the website project. When I set the WinApp as the startup project and run it I have no problems, I can set breakpoints and step through the code no problem. But when I set the Website as the startup project and try to debug I get a massage saying the breakpoint won't be hit. I then do what it tells me and right click on the breakpoint and set the location to allow the source to be different. This lets me hit the breakpoint, but every time I hit F10 to step I get "There is no source code available for the current location." For every step I take. This is making it really hard for me to figure out what going on with the code in the website. Sorry for the lengthy explanation. Here's the Users class, again it works great in the WinApp, just not the website.
[Code]....
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Mar 6, 2011
1: I have a .html file that has some markup with some placeholder tags.
[code]...
4: PersonInfo.aspx is literally empty since I am injecting html from code-behind.
When the PersonInfo.aspx is called the html-template markup with appropriate values in the placeholder will be displayed. Also there are chances I would like to send the final markup in an html email (though that is not part of the question as I know how to email).
Is this the best way to fill values in my html-template or is the any other better alternative?
Note: This is a very simple sample example. My class is very complex involving objects as properties and also my html template have 40-50 placeholders.
So code in my step 3 will need 40-50 Replace statements.
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Oct 20, 2010
Using the properties as defined in a class, how about can I put them into the ParamArray parameters argument of my function. The code as follows:
Public Class MyObject
Public Property Prop1 as string
Public Property Prop2 as integer
Public Property Prop3 as Boolean
Public Sub AddNewMyObject
MsSQL_ExecuteNonQuery("StoredProc_AddNewMyObject", ________________?)
End Sub
End Class
Protected Function MsSQL_ExecuteNonQuery(ByVal storedProc as string, ByVal ParamArray parameters as object())
'Some Code here.
End Function
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Nov 1, 2010
I have simple accordion:
$("#accordion").accordion({ autoHeight:
false, active:
false });
[code]...
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May 21, 2013
URL....i am getting below error if i use above code..Microsoft JScript runtime error: Object doesn't support property or method 'live'.
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Feb 1, 2011
I have a GridView which uses the Alternatingrowstyle property, but I also would like to higlight each row when the user Edit the row, but using this code, it only highlights the rows that don't have the Alternatingrowstyle.
protected void gv_RowEditing(object sender, GridViewEditEventArgs e)
{
gv.Rows[e.NewEditIndex].BackColor = System.Drawing.Color.Yellow;
gv.EditIndex = e.NewEditIndex;
if (e.NewEditIndex % 2 == 0)
{
gv.Rows[e.NewEditIndex].BackColor = System.Drawing.Color.Yellow;
}
}
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Apr 20, 2010
I have an insert that uses an object data source with out the direction property set and it works fine. I noticed the direction property though and wondered if I should use it.Should the direction property for the parameters of an object data source be used with a simple CRUD operations?
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