Dynamic data binding in WPF application - WPF Discussion Boards

rj_hogan5-Jan-10 0:46

5-Jan-10 0:46

Yes, I know about the using the * for the last column but I have two points of confusion with this.

1) The first column has an absolute size but it has no issue resizing that.

2) If we are going to set the 3rd column width to * we might as well go with the default ResizeBehavior of BasedOnAlignment as we will get exactly the same behaviour - hence why I wonder if PreviousAndNext has any purpose.

(I've explicitly set the ResizeBehavior but could have omitted it as BasedOnAlignment is the default):

<Grid Name="grid1">
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="100" />
        <ColumnDefinition Width="5"/>
        <ColumnDefinition Width="*"/>
    </Grid.ColumnDefinitions>
    <Grid.RowDefinitions>
        <RowDefinition />
        <RowDefinition />
    </Grid.RowDefinitions>
    <ListBox Name="listbox1" Grid.Column="0" SelectionChanged="listbox1_SelectionChanged"></ListBox>
    <GridSplitter  Name="gridsplitter1" Margin="0" Width="5" Grid.Column="1" Grid.RowSpan="2" ResizeBehavior="BasedOnAlignment" HorizontalAlignment="Left" VerticalAlignment="Stretch"/>
    <RichTextBox Grid.Column="2" Name="richtextbox1" />
    <TextBox Grid.Column="0" Grid.Row="1"/>
    <TextBox Grid.Column="2" Grid.Row="1"/>
</Grid>

Actually even if we use "BasedOnAlignment" but change the 3rd column back to an absolute width and set the HorizontalAlignment to "Right" it still won't resize the 3rd column, it just moves it across again. I can't see why there should be a difference in the behaviour (beyond which column is targeted) between setting the alignment to left or right.

Re: GridSplitter Behaviour

Pete O'Hanlon5-Jan-10 2:16

Pete O'Hanlon

5-Jan-10 2:16

Have a look at what happens if you add a second splitter. It's a bit of fun:

<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
  <Grid Name="grid1">
    <Grid.ColumnDefinitions>
      <ColumnDefinition Width="100" MinWidth="100"/>
      <ColumnDefinition Width="5"/>
      <ColumnDefinition Width="173"/>
      <ColumnDefinition Width="5"/>
      <ColumnDefinition Width="*"/>
    </Grid.ColumnDefinitions>
    <Grid.RowDefinitions>
      <RowDefinition/>
      <RowDefinition/>
    </Grid.RowDefinitions>
    <ListBox Name="listbox1" Grid.Column="0">
    </ListBox>
    <GridSplitter
      Width="5"
      Grid.Column="1"
      Grid.RowSpan="2"
      HorizontalAlignment="Right"
      Margin="0"
      VerticalAlignment="Stretch"
      ResizeBehavior="PreviousAndNext"/>
    <GridSplitter
      Width="5"
      Grid.Column="3"
      Grid.RowSpan="2"
      HorizontalAlignment="Right"
      Margin="0"
      VerticalAlignment="Stretch"
      ResizeBehavior="PreviousAndNext"/>
    <RichTextBox Grid.Column="2"/>
    <RichTextBox Grid.Column="0" Grid.Row="1"/>
    <TextBox Grid.Column="2" Grid.Row="1"/>
    <RichTextBox Grid.Column="4"/>
    <TextBox Grid.Column="4" Grid.Row="1"/>
  </Grid>
</Page>

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

WWF

Ramkumar_S3-Jan-10 14:36

Ramkumar_S

3-Jan-10 14:36

Hi All,

I need to create a editable Workflow in run time.
Is is possible?
Please help me with this.

Thanks in advance.

Ramkumar
("When you build bridges you can keep crossing them. ")

http://ramkumarishere.blogspot.com

Re: WWF

ProtoBytes4-Jan-10 3:52

ProtoBytes

4-Jan-10 3:52

Hmm Interesting... Well I would use reflections. Does it need to be a graphical work flow? If so there is a nice WPF Work flow front end here on CP that would work for the graphical front end. I am using it in a 'Visual Power Shell' article...

Here is the link to the work flow designer...

WPF Diagram Designer - Part 2[^]

How to animate To/From an Auto value?

spiritboy3-Jan-10 8:04

spiritboy

3-Jan-10 8:04

for example i want to animate the width of grid from 0 to its Auto Value! i've searched alot but cannot find anything, thanks in advance!

Re: How to animate To/From an Auto value?

Abhinav S3-Jan-10 16:39

Abhinav S

3-Jan-10 16:39

You will have to apply a resize animation.
Check this out[^].

There are only 10 types of people in this world — those who understand binary, and those who don't.

creating GridViewColumn.CellTemplate via C# ?

Mohammad Dayyan2-Jan-10 23:43

Mohammad Dayyan

2-Jan-10 23:43

Hi everybody.
I'm gonna create a ListView in WPF like below image via XAML and C#

http://xs.to/image-A835_4B3EF7EE.jpg[^]

I've already read some articles like this one[^] , but I'm a little confusing.
Could you please guide me , how I can do it ?
Thanks.

Dynamic data binding in WPF application

anishshrestha2-Jan-10 5:57

anishshrestha

2-Jan-10 5:57

I am trying to develop a quiz application for the children using WPF and Expression Blend. What actually happens in the quiz is the textblock with the question hovers in the screen for certain time and the children have to click the correct answer of this Multiple choice question. After that certain time the question and the multiple choice answer options has to be updated from the XML data source.

Using the concept of data context I have data bind the XML with the UI but I could not yet dynamically bind to it. Any help would be highly appreciated.

Thank you in advance.

Re: Dynamic data binding in WPF application

Pete O'Hanlon2-Jan-10 7:06

Pete O'Hanlon

2-Jan-10 7:06

Take a look into using the Model View ViewModel (MVVM) pattern. There are lots of links on Google about using MVVM in WPF.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

Re: Dynamic data binding in WPF application

Mark Salsbery2-Jan-10 7:13

Mark Salsbery

2-Jan-10 7:13

anishshrestha wrote:
Using the concept of data context I have data bind the XML with the UI but I could not yet dynamically bind to it.

What do you mean by "dynamically bind to it"?

Programmatically you can create a Binding object, set its properties
as needed, and then set the binding to the property on the element:

Binding binding = new Binding();
binding.XPath = "Name";
myTextBlock.SetBinding(TextBlock.TextProperty, binding);

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: Dynamic data binding in WPF application

anishshrestha2-Jan-10 8:36

anishshrestha

2-Jan-10 8:36

For the application, Actually I wish to move to the next question from the XML node as soon as a the time limit is up and so the options for that particular question. I seem to have no idea how to accomplish that in code.

How is it possible to bind the different node of data from the XML, one at a time,for a same control after the certain time gap???

Thank you for the response. I would appreciate any help or suggestions.

Thank you.

Resolution setting in WPF

Anu_Bala31-Dec-09 18:33

Anu_Bala

31-Dec-09 18:33

Hi,

In my applcaiton,i make Grid of size Grid Width="1300.441" Height="80",
Its working fien in this resolution.But when i changed my resolution to 1152 width,quater of application get out of the desktop.
How can i avoid that?
I want to display full page in all resolution.
Pls help me

Anu

Re: Resolution setting in WPF

Mark Salsbery1-Jan-10 9:10

Mark Salsbery

1-Jan-10 9:10

Anu_Bala wrote:
How can i avoid that?

Don't use hard-coded dimensions.

Instead, use an element that sizes the Grid.

For example, if the Grid is the child of a Window element,
you could set the Window's WindowState to Maximized and the Grid
will fill the Window's client area.

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Silverlight combobox in aspx page

Shivan Nandan31-Dec-09 18:32

Shivan Nandan

31-Dec-09 18:32

Hi friends,

I am new to silverlight. I have created a silverlight combo with options 'Male' and 'Female', and included it in an aspx page.
Now I want to know, how to retrieve the selected value and selected text in aspx code.

Please help me.

Shivanandan C V

Re: Silverlight combobox in aspx page

Mark Salsbery1-Jan-10 9:01

Mark Salsbery

1-Jan-10 9:01

Shivan Nandan wrote:
how to retrieve the selected value and selected text in aspx code.

aspx code runs on the server and Silverlight runs on the client.

You can use javascript on the client to communicate with a
Silverlight plugin.

HTML Bridge: Interaction Between HTML and Managed Code[^]

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: Silverlight combobox in aspx page

April Fans6-Jan-10 19:12

April Fans

6-Jan-10 19:12

You can use javascript. Detailed info can be found at:

http://pietschsoft.com/post/2008/06/Silverlight-and-JavaScript-Interop-Basics.aspx

April

Comm100 - Leading Live Chat Software Provider

modified 27-May-14 21:45pm.

Google map in wpf application

vsaratkar31-Dec-09 8:16

vsaratkar

31-Dec-09 8:16

Hi,

I have a list of locations, I want to use google map for routing thro' the locations to find the shortest path, get directions and see street view using google API. This a wpf application, I am downloading locations from server.

As far as possible we don't want to use WebBrowser control.

Is there any way to do this? Any help or related link will be greatly appreciated.

Thanks!!
Happy new year

Veena

Re: Google map in wpf application

Mark Salsbery31-Dec-09 13:02

Mark Salsbery

31-Dec-09 13:02

A bunch of ideas...[^]

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: Google map in wpf application

Mohammad Dayyan31-Dec-09 20:48

Mohammad Dayyan

31-Dec-09 20:48

Have you seen http://greatmaps.codeplex.com/[^] ?

Re: Google map in wpf application

vsaratkar4-Jan-10 3:12

vsaratkar

4-Jan-10 3:12

Thanks Mark and Mohammad,

I will study the links.

Veena

WPF window transparancy

Jeroen De Dauw31-Dec-09 7:56

Jeroen De Dauw

31-Dec-09 7:56

Hey,

I want to make a window with WindowStyle ThreeDBorderWindow transparent. This solution[^] does not work for windows with that WindowStyle Frown | :(

Is this possible, and if so, how?

Cheers!

Jeroen De Dauw
---
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Re: WPF window transparancy

Mark Salsbery31-Dec-09 13:15

Mark Salsbery

31-Dec-09 13:15

jeroen de dauw wrote:
Is this possible, and if so, how?

AllowsTransparency can only be used when the WindowStyle is None.

You could use WindowStyle="None" AllowsTransparency="True" and provide
the titlebar and borders yourself.

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: WPF window transparancy

Jeroen De Dauw31-Dec-09 13:18

Jeroen De Dauw

31-Dec-09 13:18

Hey,

I'm aware of that, but don't want to go construct my own titlebar, borders and WindowState buttons myself. The approach would be viable if there was an easy way to get all those things onto my window by using some native properties or so, but I guess that's not possible.

Cheers!

Jeroen De Dauw
---
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---
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how to bind images horizontally in datagrid

Jagz W30-Dec-09 18:11

Jagz W

30-Dec-09 18:11

i want to bind images horizontally using datagrid

i don't want to use listbox because i m binding images directly from sql server table on rowbinding event datagrid.

One person's data is another person's program.

--J.Walia

Re: how to bind images horizontally in datagrid

Abhinav S30-Dec-09 19:39

Abhinav S

30-Dec-09 19:39

A list box can be used with an ItemsPanelTemplate tag and a StackPanel to achieve this[^].

If your binding is done correctly, I dont think you should need the rowbinding event of the datagrid.
Use an ObservableCollection to bind to the list box.

There are only 10 types of people in this world — those who understand binary, and those who don't.

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