custom query - WPF Discussion Boards

Re: Bool To Visibility Converter Problem

Ian Shlasko9-May-11 6:19

Ian Shlasko

9-May-11 6:19

Glad to help

Proud to have finally moved to the A-Ark. Which one are you in?
Author of the Guardians Saga (Sci-Fi/Fantasy novels)

Re: Bool To Visibility Converter Problem

SledgeHammer019-May-11 10:20

SledgeHammer01

9-May-11 10:20

Your original question has already been answered, but one bit of advice... as you write more and more WPF code, you are going to end up with a bunch of these "one off" converters... a much better solution would be to use a generic map converter.

http://wpfconverters.codeplex.com/wikipage?title=User%20Documentation#MapConverter[^]

Re: Bool To Visibility Converter Problem

AspDotNetDev9-May-11 11:09

AspDotNetDev

9-May-11 11:09

Nice!

C++

S<T>::f(U) // Out of line.

how to get selected datagrid row items ?

SRKSHOME8-May-11 21:28

SRKSHOME

8-May-11 21:28

Hi,

I have a datagrid(using WPF) and miltiple row selection is allowed. How to get multiple selected items in MVVM pattern?

It is easy to get this in code behind file? But in MVVM pattern codebehind file doesn't contains the much code.

Many thanks.

Re: how to get selected datagrid row items ?

Pete O'Hanlon8-May-11 21:44

Pete O'Hanlon

8-May-11 21:44

There are two parts to this answer. The first part is that you should use a Command to set an IsSelected property on each item in your collection. The second part compensates for the fact you can't bind to a command on the Selected event. To get round this you need to use an EventToCommand Blend Behaviour. Laurent Bugnion has a fine sample in MVVM Light.

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Re: how to get selected datagrid row items ?

SRKSHOME8-May-11 22:36

SRKSHOME

8-May-11 22:36

thanks..Can I have that link? I couldn't get it.

Re: how to get selected datagrid row items ?

Pete O'Hanlon9-May-11 0:19

Pete O'Hanlon

9-May-11 0:19

You can find it here[^].

Forgive your enemies - it messes with their heads

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custom query

picasso27-May-11 7:52

picasso2

7-May-11 7:52

I have a table MyTable (comId, groupId, versionId) that is bound to a grid using code.
The default connection generated by domain services works fine

return this.ObjectContext.MyTable;
but I modified the return statement to get one column only

return this.ObjectContext.MyTable.Include("groupId");

This statement compiles correct but returns an error

unhandle error
Manage Runtime
System.ServiceMode.DomainService.Client.DomainOperation Exception

Any help is greatly appreciated

Re: custom query

Pete O'Hanlon7-May-11 8:29

Pete O'Hanlon

7-May-11 8:29

You may want to post this in the LINQ forum instead rather than randomly choosing one.

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How to set default location for google map on WP7

Nguyen Thanh Duc6-May-11 23:30

Nguyen Thanh Duc

6-May-11 23:30

On this topic Google Maps for Windows Phone 7 using Bing Map Control[^]

we can display google map, but I need to set location what I want, anyone can help? I don't know how to set longtidude and latitude on this.

Re: How to set default location for google map on WP7

Pete O'Hanlon6-May-11 23:34

Pete O'Hanlon

6-May-11 23:34

As this is related to an article, you should ask on the forum for that article. It's extremely unlikely that the author will happen to wander by this forum and pick up your question.

Forgive your enemies - it messes with their heads

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Extended EDMX

eddieangel6-May-11 7:21

eddieangel

6-May-11 7:21

I have a partial class to extend my entity framework edmx, it looks like this (in brief)"

public partial class Property
{
    private string _displayAddress;
    public string DisplayAddress
    {
        get
        {
            string address = number.ToString();
            if (!String.IsNullOrEmpty(direction))
                address += " " + direction;
            address += " " + street;
            if (suffixId != null)
                address += " " + StreetSuffix.name;
            if (!String.IsNullOrEmpty(unit))
                address += " " + unit;
            return address;
        }
        set { _displayAddress = value; }
    }
}

The kicker is that the StreetSuffix is a separate table that is joined to the property table by virtue of suffixId.

The data service class has this: return this.ObjectContext.Properties.Include("StreetSuffix");.

The metadata class has this:

[Include]
public StreetSuffix StreetSuffix { get; set; }

So what is amiss that is throwing a null error when it tries to process the StreetSuffix.name?

Cheers, --EA

Re: Extended EDMX

Pete O'Hanlon6-May-11 7:35

Pete O'Hanlon

6-May-11 7:35

Ahem. Wrong forum. Try the Linq forum instead.

Forgive your enemies - it messes with their heads

My blog | My articles | MoXAML PowerToys | Mole 2010 - debugging made easier - my favourite utility

Re: Extended EDMX

eddieangel6-May-11 7:38

eddieangel

6-May-11 7:38

I overlooked that forum for some reason, probably cosmic radiation on my brain. Thank you for your patient response.

Cheers, --EA

Re: Extended EDMX

Pete O'Hanlon6-May-11 8:23

Pete O'Hanlon

6-May-11 8:23

No problem, but if you got hit by cosmic radiation, does this mean you've developed cool superpowers?

Forgive your enemies - it messes with their heads

My blog | My articles | MoXAML PowerToys | Mole 2010 - debugging made easier - my favourite utility

Re: Extended EDMX

eddieangel6-May-11 8:24

eddieangel

6-May-11 8:24

Only if male pattern baldness and steady memory loss are considered super powers.

How to convert arrayclass into normal class object..

Rocky236-May-11 7:12

Rocky23

6-May-11 7:12

Hi can anyone tell me how to convert this array class object into normal class object, because it is not showing any method like listbox.move or listbox.remove in a listbox associated with this class object//

public partial class Directive : DependencyObject
    {
        public static readonly DependencyProperty DirectiveIDProperty = DependencyProperty.Register("DirectiveID", typeof(string),
                                                                                               typeof(Directive));
        public static readonly DependencyProperty DirectiveNameProperty = DependencyProperty.Register("DirectiveName", typeof(string),
                                                                                               typeof(Directive));
        public static readonly DependencyProperty DirectiveDescriptionProperty = DependencyProperty.Register("DirectiveDescription", typeof(string),
                                                                                               typeof(Directive));
        public static readonly DependencyProperty PriorityProperty = DependencyProperty.Register("Priority", typeof(string),
                                                                                               typeof(Directive));
        public static readonly DependencyProperty DefaultProperty = DependencyProperty.Register("Default", typeof(string),
                                                                                               typeof(Directive));
        public static readonly DependencyProperty SetValueTypeProperty = DependencyProperty.Register("SetValueType", typeof(SetValueType),
                                                                                               typeof(Directive));
        public static readonly DependencyProperty ConditionProperty = DependencyProperty.Register("Condition", typeof(Condition[]),
                                                                                               typeof(Directive));
        public static readonly DependencyProperty GroupProperty = DependencyProperty.Register("Group", typeof(Group[]),
                                                                                               typeof(Directive));
}

because i was using listdata.move and listdata.remove method with normal class object, where listdata is a itemsource name..

here am not finding any method like this, so can u tell me how can i convert this classarray into normal class type..

Re: How to convert arrayclass into normal class object..

Pete O'Hanlon6-May-11 23:38

Pete O'Hanlon

6-May-11 23:38

I ve no idea what you are talking about. This is a DependencyObject, not an array. What array are you talking about?

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Re: How to convert arrayclass into normal class object..

Rocky237-May-11 0:20

Rocky23

7-May-11 0:20

sorry,

My mistake,

Previously i was able to delete the data from listbox Itemsource, which is getting the data from the object of this class..

Now the class structure has been changed, now the itemsource not contaiin a method like remove, move..

it is taking the value into array associated with this class, so can u tell me how can i delete the object values from this class which it contain..

Re: How to convert arrayclass into normal class object..

Pete O'Hanlon7-May-11 1:34

Pete O'Hanlon

7-May-11 1:34

The class that contains the collection should use an ObservableCollection to contain this type.

Forgive your enemies - it messes with their heads

My blog | My articles | MoXAML PowerToys | Mole 2010 - debugging made easier - my favourite utility