I ran into a bug with the RadSlider that tripped me up for a few hours.  There's an easy workaround, but I figured that this is the sort of thing that you'd want to know about so you could fix it.

Synopsis:
When a RadSlider is databound to an object, if the value that is bound to the Minimum property is set prior to setting the object that is bound to the Maximum value then your application will terminate with a StackOverflowException.

What ends up happening, (as far as I can tell), is that internally the API sees that Minimum has been set to X and so reacts by setting SelectionStart = Minimum.  The API then notices that SelectionStart > SelectionEnd and so sets SelectionStart to 0.  This cycle repeats until the stack is blown:  Selection start goes back to X, then 0, then X, then 0, then.....

Reproduction case:
I created a simple little WPF app to reproduce this problem.

XAML:


C#:

You can look at your console output to see the problem as it happens.

Workaround:
Setting Maximum prior to Minimum completely avoids this glitch, which is fine for now.  Hopefully you folks can patch this up so that others don't need to spend the time scratching their heads and trying to figure out what went horribly wrong with their code. =)

hi!!

i have 2 texbox and i need to use them in all of the tab items

like a general controls for the tab

what can i do?

thanks for your help

oscar zapata

I have the following GridViewDataColumns -

I'm using the RadMap control for an address location project. From a list, the user selects an address (lat, lon) and a Bing map is centered in the RadMap control. This works just fine. The map is drawn with the selected address centered in the RadMap control.

Now, I want to add a pushpin at the address location. Using the code below, my image is inserted but not at the correct location. The center of the 16x16 pushpin is actually the upper left corner of the RadMap control. The pushpin needs to be in the center (at least initially) of the RadMap. If the user zooms and/or pans, the pushpin also needs to pan/zoom in order to show the selected address.

This does not appear to an issue with screen coordinates vs. geographic coordinates. The upper left corner of the RadMap is 300,400 and the geographic coords are +45 (N), -90 (W). If I move the RadMap around in design and run the app again, the pushpin is always in the upper left corner.

What am I doing wrong?

Thanks,
Scott

 

 

 

Hi,

The ASP.NET controls library has the ability to load items on-demand as the vertial scroll bar in a Grid is moved up or down.  Does the WPF GridView have a similar capability or am I limited to the standard paging layouts used, i.e. RadDataPager?

Anybody out there ?????????????

Can the transitions be used between pages...?  How?

I have a Menu page that calls other pages?


MainPage main = new MainPage();

button click ---    calls

Accounting  acct = new Accouting();

thanks...........

Hi,

Is it possible to bind a string list to a gridView such that new entries can be created and the entries can be edited in the grid?
I am using Version 2009.3.1314.35.

Thank you.

Philipp

Hello all,
I am trying to create a configuration window that binds to an external XML file and implements two way binding in XAML. I have basically used the RadGridView demo as a starting point and have started to modify my code to implement the the two way binding piece, however I have hit a road block.

First off I am wondering whether I should use a DependencyObject or implement INotifiedProperty. At this point I am using a DependencyObject, however my textboxes do not appear to bind to the data, but the RadGridView does.

Basically I want to use the RadGridView as a list box on steroids and use the textboxes to edit/add records. However since this is an external xml file I am bit confused on what direction to take. Also I am using a ObservableCollection as my datasource, just as you do in the RadGridView demo, but I have also played around with using a XMLDataProvider. Any suggestions here?

Below are the basic classes I have so far.

Thanks for your help!

XAML

Dependency Object

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Xml;

using System.Windows;

using System.Xml.Serialization;

namespace VistaAdmin.Configuration.Models

{

public class Environment : DependencyObject

{

#region DependencyProperties

public static readonly DependencyProperty ServernameProperty =

DependencyProperty.Register("Servername", typeof(String), typeof(Environment));

public static readonly DependencyProperty NameProperty =

DependencyProperty.Register("Name", typeof(String), typeof(Environment));

public static readonly DependencyProperty DatabasenameProperty =

DependencyProperty.Register("Databasename", typeof(String), typeof(Environment));

public static readonly DependencyProperty UsernameProperty =

DependencyProperty.Register("Username", typeof(String), typeof(Environment));

public static readonly DependencyProperty PasswordProperty =

DependencyProperty.Register("Password", typeof(String), typeof(Environment));

public static readonly DependencyProperty ServerTypeProperty =

DependencyProperty.Register("ServerType", typeof(String), typeof(Environment));

public static readonly DependencyProperty RootPathProperty =

DependencyProperty.Register("RootPath", typeof(String), typeof(Environment));

#endregion

#region IEnvironment Members

[XmlAttribute(AttributeName = "Servername")]

public string Servername

{

get {return (string)GetValue(ServernameProperty);}

set {SetValue(ServernameProperty,value);}

}

[XmlAttribute(AttributeName = "Name")]

public string Name

{

get {return (string)GetValue(NameProperty);}

set {SetValue(NameProperty,value);}

}

[XmlAttribute(AttributeName = "Databasename")]

public string Databasename

{

get {return (string)GetValue(DatabasenameProperty);}

set {SetValue(DatabasenameProperty,value);}

}

[XmlAttribute(AttributeName = "Username")]

public string Username

{

get {return (string)GetValue(UsernameProperty);}

set {SetValue(UsernameProperty,value);}

}

[XmlAttribute(AttributeName = "Password")]

public string Password

{

get {return (string)GetValue(PasswordProperty);}

set {SetValue(PasswordProperty,value);}

}

[XmlAttribute(AttributeName = "ServerType")]

public string ServerType

{

get {return (string)GetValue(ServerTypeProperty);}

set {SetValue(ServerTypeProperty,value);}

}

[XmlAttribute(AttributeName = "RootPath")]

public string RootPath

{

get {return (string)GetValue(RootPathProperty);}

set {SetValue(RootPathProperty,value);}

}

#endregion

}

}

Observable Collection

using System;

using System.Collections.Generic;

using System.Collections.ObjectModel;

using System.Linq;

using System.Text;

using System.Xml;

using System.Xml.Serialization;

namespace VistaAdmin.Configuration.Models

{

[XmlRoot(ElementName = "EnvironmentList")]

public class EnvironmentsList : ObservableCollection<Environment>

{

public void AddRange(IEnumerable<Environment> range)

{

foreach (Environment node in range)

{

this.Add(node);

}

}

//public void Add(Environment node)

//{

//        this.Add(node);

//}

}

}

Datasource

using System;

using System.Reflection;

using System.Collections.Generic;

using System.Collections.ObjectModel;

using System.Linq;

using System.Text;

using System.Xml;

using System.Xml.Serialization;

using System.Xml.XPath;

using System.IO;

using System.Windows.Data;

using System.ComponentModel;

using Microsoft.Practices.EnterpriseLibrary.Logging;

namespace VistaAdmin.Configuration.Models

{

public class XmlDataSource : EnvironmentsList

{

private string source;

public string Source

{

get

{

return this.source;

}

set

{

try

{

Assembly executingAssembly = Assembly.GetExecutingAssembly();

string xmlFile = Path.GetDirectoryName(executingAssembly.Location) + @"\DataSources\" + value;

this.source = xmlFile;

AddRange(RetrieveData(File.Open(xmlFile, FileMode.Open)));

}

catch (Exception ex)

{

Log("Error occured retrieving data:" + ex.Message, System.Diagnostics.TraceEventType.Error);

}

}

}

private EnvironmentsList RetrieveData(Stream xmlStream)

{

XmlSerializer serializer = new XmlSerializer(typeof(EnvironmentsList));

StreamReader reader = new StreamReader(xmlStream);

EnvironmentsList list = (EnvironmentsList)serializer.Deserialize(reader);

return list;

}

private static void Log(string message, System.Diagnostics.TraceEventType severity)

{

LogEntry entry = new LogEntry();

entry.Severity = severity;

entry.Message = message;

entry.Title = "VistaAdminConfiguration";

entry.Categories.Add("Configuration");

Logger.Write(entry);

}

public static void SaveData(Environment environment)

{

try

{

Assembly executingAssembly = Assembly.GetExecutingAssembly();

string xmlFile = Path.GetDirectoryName(executingAssembly.Location) + @"\DataSources\Environments.xml";

XmlSerializer serializer = new XmlSerializer(typeof(EnvironmentsList));

StreamWriter writer = new StreamWriter(xmlFile);

serializer.Serialize(writer, environment);

}

catch (Exception ex)

{

Log("Error trying to save Enviroment: " + ex.Message, System.Diagnostics.TraceEventType.Error);

}

}

}

}

External XML File

<?xml version="1.0" encoding="utf-8" ?>

<EnvironmentList>

<Environment Name="Environment Name" Servername="Server" Username="sa" Password="!@#!@$!@%#" Databasename="DatabaseName" ServerType="SQL" RootPath="C:\Temp"/>

</EnvironmentList>

Hi,
Does anyone know why Click Handler on the button does not work when the button is within RadBook control, while mousedoubleclick handler works ok.
Also the Expander control does not respond to click when the control is in the book.
Thanks in advance