.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Register
 
Win Surprise Gifts!!!
Congratulations!!!


Top 5 Contributors of the Month
Easy Web
Imran Ghani
Post New Web Links

Binding a custom type in XAML ?

Posted By:      Posted Date: September 17, 2010    Points: 0   Category :WPF
 
Hi, I'd like to bind a property "myProperty" of type "MyType" in the text property of TextBlock : <TextBlock Text="{Binding myProperty, Mode=OneWay}" And I overrided the ctype operator to have conversion from "MyType" to String: Public Overloads Shared Narrowing Operator CType(ByVal v As MyType) As String ...................... End Operator But it seems not work! I get the ToString of "MyType" in result but not the return of CType operator. Is it normal ? Why ?   Thanks for your help.  


View Complete Post


More Related Resource Links

Is there a plan to support a custom activity type as a root document in xaml on VS workflow designer

  

Hi,

Referring to the post below. It seems that the current VS workflow designer only support "Activity" type as a root document. Is there a plan to support a custom activity type as a root document in xaml on next release of WF?

http://social.msdn.microsoft.com/Forums/en-US/wfprerelease/thread/25b6669e-7e51-4d47-812e-684bdc0db37e

 

Thanks.


Extend ASP.NET: Simplify Data Binding In ASP.NET 2.0 With Our Custom Control

  

The wwDataBinder control addresses simple control data binding--binding simple form controls like textboxes, checkboxes, and the selected values of list controls to individual data or object values.

Rick Strahl

MSDN Magazine December 2006


Data Binding: Give Your Everyday Custom Collections a Design-Time Makeover

  

In this article, Paul Ballard shows how you can provide data binding support for your custom collections to enable sorting, searching, and editing in as simple a manner as possible. In addition, he shows how to make all of these features available in the Windows and Web Forms Designers, just like an ADO.NET DataSet.

Paul Ballard

MSDN Magazine August 2005


To create a custom control and type while creating a column

  

HI All,

i am creating a column in the list while creating a column i will have an option for choice field on selecting choice i can see dropdown, radiobutton, Checkbox to select and  can enter list of values. and on clicking ok i will get a column with radiobutton. in newform.aspx and also in editform.aspx

so i need to create the similar functionality with my custom radio button, so on create column i need to show my custom choce on selecting this i need to show my custom radiobutton  and  can enter list of values then on selecting it then click ok to create a column, in edit form and new form i need to show a radio buttons with values.

Thanks in advance

 

 

 


Custom field type from LookupMulti only saves 1 value

  

hi, i'm having this problem:

http://social.msdn.microsoft.com/Forums/en-US/sharepointdevelopment/thread/43bddecf-65f5-4ac7-b265-bd290378440a

i'm trying to create a custom field type that works like a multiple lookup, but when i select multiple values only one is ever saved. has any one else ever run into the same problem who might be able to point me in the right direction?


VS 2010 XAML Design View Load always fail with a Type Load Exception

  
Create a new WPF project in VS and change nothing. The Design View will fail to load with the error below. Error    1    Could not load type 'Microsoft.Expression.DesignModel.Core.ISharedInstanceBuilder' from assembly 'Microsoft.Expression.DesignModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. Microsoft.Expression.DesignModel is an assembly from Expression Blend. I ever installed Blend 4 RC and uninstall and install Blend 4. I Reflector the assembly I have under Blend 4 bin folder. And cannot find a interface named ISharedInstanceBuilder. But the WPF project is a Template project without any changes. How it get related with Blend 4? And how to fix it? Thanks.  

Creating a custom drop down field type with SelectedIndexChanged Event

  
Hi All, I am trying to create a custom drop down field type and I was able to acheive that using the MS link http://msdn.microsoft.com/en-us/library/bb861799.aspx. As per the link, once the custom field is created we can override the "Validate" method to write the Validation logic and that works fine for me too. However I am facing a challenge even before going to Validate . Let me explain my actual requirements here. I need to build a custom drop down field and expose the field to the user in "Edit Properties " Page of a document library. Along with this field, I will be having some OOB site columns in the Edit Properties Page (Ex: Title, Subject etc)  . When user selects a value in the drop down, I need to hide/show few OOB site columns based on certain criteria.  I am facing a challenge of how to capture the "SelectedIndexChanged " event for the Custom drop down field in Sharepoint (Can we wire the SelectedIndexChanged event to a custom dropdown field type) ? Is this acheivable in SP 2010 Custom field type ? If so, how can I do it ? Can any of you kindly help me here?   Regards, Yesh

Custom binding and interoperability.

  
Hi everyone, I have to build a wcf client to communicate with a JAVA web service. The configuration of that web service is not standard and I'm trying to use a custom binding. I have to generate a SOAP message with a Binary Security Token section and a username section in the SOAP header. I have to sign the username token with my X509 certificate and add the digest to the message. I must sign the body too and again add the digest to the message. The service is under an https transport (https://...). Below I attach a correct example of a message that I have to produce: <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">     <soap:Header>         <wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"                        soap:mustUnderstand="1">             <wsse:BinarySecurityToken                     xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"        &

Data binding without typing out xaml

  
Now I'm not stumped on getting data binding to work, I simply want to know how to utilize the window interfaces that visual studio 2010 comes with - as opposed to typing in XAML.  All I want to do is bind a font size property to an xml file within the project.   Here's what I do: After selecting the text box, in the properties panel, i go to the text category then click on the data-binding icon next to the font size field.  I then click on 'apply data binding', where a small panel pops up.  This is where I become stuck.  It seems like I need a path to the xml file, but I don't know how to add that in without typing in XAML.  I would assume that I would be able to add in a resource somewhere - kind of like windows forms allow me to do. I've never worked with WPF before, so I know it's something small/simple that i'm missing.  Any help would be appreciated. thanks, Phil

How can I access a Type with generic parameter in XAML

  
Hello, How can I access a Type with generic parameter in XAML. class SampleClass<T> { } now in XAML: i want to access xmlns:local="Ref to SampleClass" How it will create the instance of SampleClass<T>?

Accessing Generic Type in XAML

  
Hello, How can I access a Type with generic parameter in XAML. class SampleClass<T> { } now in XAML: i want to access xmlns:local="Ref to SampleClass" How it will create the instance of SampleClass<T>?

Custom markup extension or custom binding class?

  
Hey experts! I'm doing a project where I've encountered an issue I'd love some feedback on. I've created a custom Markup Extension called MyMarkupExtension, with two properties.  I can use it like below: <cc:DialogBorder Title="{local:MyMarkupExtension MyProperty='property value goes here', AnotherProperty='and another value here'}"> It works, and in 99% of the cases, it fits my needs perfectly.  In 1% of the cases, the values of MyProperty and AnotherProperty can not be set at design time, so I'd need some binding there. <cc:DialogBorder Title="{local:MyMarkupExtension MyProperty={Binding Path='SomePropertyOfTheViewModel'}, AnotherProperty='and another value here'}"> This presents my two questions (yes I did make only one post for 2 questions, bad karma...): 1. the binding inside my markup is not legal, after all, a binding can only be set on a DependencyProperty.  Is there any workaround which I could use for this problem at hand? In case there isnt... 2. I'm thinking about dropping the markup extension and creating a custom binding instead.  For this, I'd have to inherit from bindingbase, and so far I've read online that's one ____ of a nightmare.  Does anyone have some good code / examples on where to start? "The improbable we do, the impossible just takes

Data binding without typing out xaml

  
Now I'm not stumped on getting data binding to work, I simply want to know how to utilize the window interfaces that visual studio 2010 comes with - as opposed to typing in XAML.  All I want to do is bind a font size property to an xml file within the project.   Here's what I do: After selecting the text box, in the properties panel, i go to the text category then click on the data-binding icon next to the font size field.  I then click on 'apply data binding', where a small panel pops up.  This is where I become stuck.  It seems like I need a path to the xml file, but I don't know how to add that in without typing in XAML.  I would assume that I would be able to add in a resource somewhere - kind of like windows forms allow me to do. I've never worked with WPF before, so I know it's something small/simple that i'm missing.  Any help would be appreciated. thanks, Phil

Binding to a custom App.Config file in dotnet 4.0

  
Hi, I need to resolve Mixed Mode assembly issue using below text in configuration file. <?xml version="1.0"?> <configuration> <startup useLegacyV2RuntimeActivationPolicy="true"> <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/> </startup> </configuration> But, it seems to be work only in APP.CONFIG file. and does not work in custom configurationfile (custom.config).   I gone through the below article: http://weblogs.asp.net/israelio/archive/2005/01/10/349825.aspx still it does not work seems to be work for resolve Mixed mode assemly issue. Please let me know if any one has idea on this.   Thanks, Dhaval Soni    

What is the correct error handling in custom model binding?

  
Hello,I am working on a Custom Model Binder where a certain error can occur.When this happens it returns null and a error is added to the ModelState.The problem is that in some projects I am using Fluent Validation and the errors messages I am adding through FV are not taking effect.The message added by the Model Binder always prevails.Should the Model Binder add error messages or just bind the field and return null if some problem happened?What would be the correct implementation for this?Thanks,Miguel

Custom Entity Framework template and access to the database type

  
First and foremost ... I already made a few changes in the template, the most important one changing the methods generated for stored procedures with OUTPUT parameters and no resultset so that instead of instantiating a few OutputParameter objects, passing them to the method and extracting the values (all without any type checking) you just call the method with a few "out someType?" parameters so I do not need the very basics. I am totally confused by all those GlobalItem, EdmProperty, BuiltInTypeKind, TypeUsage and all this made of objects, all alike and all different though so as soon as I need more data than what's already used by the template I run into problems :-(What I would like is to change the WritePrimitiveTypeProperty() so that it outputs [StringLength(xxx)]  for all char, varchar, nchar and nvarchar properties. But I can't find a way to get from an EdmProperty in the model to the database type in the store.Can anyone help me?In case anyone is interested here's the modified stored procedure mapping code for the template. The first code replaces the original in the .tt: //////// //////// Write EntityContainer and ObjectContext Function Import methods. //////// region.Begin(GetResourceString("Template_RegionFunctionImports")); foreach (EdmFunction edmFunction in container.FunctionIm

Regarding sharepoint custom field type

  
There is column I have created using custom field type .I want the grid view that i have in my new/edit mode same to be displayed in my display mode also. What should be the appropriate approach ? Here is my code in which i ma getting error ..so i decided to change my approach..I thought changing in render pattern of field definition file can work... using System; using System.Collections.Generic; using System.Linq; using System.Text; using Microsoft.SharePoint.WebControls; using System.Web; using System.Web.UI.WebControls; using Microsoft.SharePoint; using System.Xml; using System.Reflection; using System.Web.UI; using System.Collections; using System.Data;     namespace UserControl_ClassLib {     public class UserControl_ClassLibControl : BaseFieldControl     {         protected UserControl preview_UC;         protected GridView gridViewValue;         protected GridView grdDataView;         //protected TextBox txtbox;               protected override string DefaultTemplateName         {             get { return "UserControl_ClassLibCo
Categories: 
ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend