WPF show MouseMove position

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0
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I have XAML:

<Grid MouseMove="onMouseMove" >

  <ItemsControl Name="btnTableImageList">

    <ItemsControl.ItemTemplate>

      <DataTemplate>

        <Button Content="{Binding Content}" 

                Height="{Binding Height}" 

                Width="{Binding Width}" 

                Tag="{Binding Tag}" 

                Margin="{Binding Margin}" 

                Background="{Binding Background}" 

                HorizontalAlignment="Center"  

                MouseDown="tblButton_MouseDown" 

                MouseUp="tblButton_MouseUp" 

                Click="ClickHandlerTableBtn" 

                TextBlock.TextAlignment="Center" />

      </DataTemplate>

    </ItemsControl.ItemTemplate>

  </ItemsControl>

</Grid>

And code behind:

private void onMouseMove(object sender, MouseEventArgs e)

{

    lblCoord.Content = Mouse.GetPosition(Application.Current.MainWindow);

}

On the form there is Label named lblCoord, and there are two buttons that are created after form is loaded.

I want to display mouse coordinate in lblCoord in relation to the Grid, but coords are displayed only when i move mouse cursor over any of the buttons that are placed inside that grid.

My guess is that I am placing MouseMove="onMouseMove" in wrong place.

Thanks for your help.

edited Nov 21 at 15:00

Lews Therin

2,27811436

asked Nov 21 at 14:53

Bodul

898

2

Without testing this I know that Button in WPF captures the mouse click, it may also be capturing the MouseMove. I'd have to test and see. If so, in WPF you can use PreviewMouseMove which is captured outmost first. So try using PreviewMouseMove and see if that works. Events are tunneled down from outer most content to inner and raised usually with events prefixed with Preview. Other events are bubbled from inner most to out and do not include the Preview prefix.
– Michael Puckett II
Nov 21 at 14:57

You might need to calculate the possition relative to the screen.
– ikerbera
Nov 21 at 14:59

Same thing happens with PreviewMouseMove. position is shown only when mouse cursor goes over buttons and completly ignores grid, or whatever else is behind cursor except if it's a button.
– Bodul
Nov 21 at 15:00

1

I'll have to play with this in code. What is the content in the button? Verify that content isn't capturing the events. Just scanning it that's my assumption but I'm not sure. It may be that the Grid doesn't fire the MouseMove event if it's transparent bc I know you can click through transparency in WPF. If it's a transparency issue you can make the Background a color that's so transparent (but not completely) you can't see it but it still registers click. Possibly the same with MouseMove...
– Michael Puckett II
Nov 21 at 15:05

1

Buttons are dynamicly created during runtime, so a lot of stuff is loaded from database. But for test you can change XAML button code to <Button Content ="Test" /> it will behave exactly the same.
– Bodul
Nov 21 at 15:08

|
show 6 more comments

up vote
0
down vote

favorite

I have XAML:

<Grid MouseMove="onMouseMove" >

  <ItemsControl Name="btnTableImageList">

    <ItemsControl.ItemTemplate>

      <DataTemplate>

        <Button Content="{Binding Content}" 

                Height="{Binding Height}" 

                Width="{Binding Width}" 

                Tag="{Binding Tag}" 

                Margin="{Binding Margin}" 

                Background="{Binding Background}" 

                HorizontalAlignment="Center"  

                MouseDown="tblButton_MouseDown" 

                MouseUp="tblButton_MouseUp" 

                Click="ClickHandlerTableBtn" 

                TextBlock.TextAlignment="Center" />

      </DataTemplate>

    </ItemsControl.ItemTemplate>

  </ItemsControl>

</Grid>

And code behind:

private void onMouseMove(object sender, MouseEventArgs e)

{

    lblCoord.Content = Mouse.GetPosition(Application.Current.MainWindow);

}

On the form there is Label named lblCoord, and there are two buttons that are created after form is loaded.

I want to display mouse coordinate in lblCoord in relation to the Grid, but coords are displayed only when i move mouse cursor over any of the buttons that are placed inside that grid.

My guess is that I am placing MouseMove="onMouseMove" in wrong place.

Thanks for your help.

edited Nov 21 at 15:00

Lews Therin

2,27811436

asked Nov 21 at 14:53

Bodul

898

2

Without testing this I know that Button in WPF captures the mouse click, it may also be capturing the MouseMove. I'd have to test and see. If so, in WPF you can use PreviewMouseMove which is captured outmost first. So try using PreviewMouseMove and see if that works. Events are tunneled down from outer most content to inner and raised usually with events prefixed with Preview. Other events are bubbled from inner most to out and do not include the Preview prefix.
– Michael Puckett II
Nov 21 at 14:57

You might need to calculate the possition relative to the screen.
– ikerbera
Nov 21 at 14:59

Same thing happens with PreviewMouseMove. position is shown only when mouse cursor goes over buttons and completly ignores grid, or whatever else is behind cursor except if it's a button.
– Bodul
Nov 21 at 15:00

1

I'll have to play with this in code. What is the content in the button? Verify that content isn't capturing the events. Just scanning it that's my assumption but I'm not sure. It may be that the Grid doesn't fire the MouseMove event if it's transparent bc I know you can click through transparency in WPF. If it's a transparency issue you can make the Background a color that's so transparent (but not completely) you can't see it but it still registers click. Possibly the same with MouseMove...
– Michael Puckett II
Nov 21 at 15:05

1

Buttons are dynamicly created during runtime, so a lot of stuff is loaded from database. But for test you can change XAML button code to <Button Content ="Test" /> it will behave exactly the same.
– Bodul
Nov 21 at 15:08

|
show 6 more comments

up vote
0
down vote

favorite

I have XAML:

<Grid MouseMove="onMouseMove" >

  <ItemsControl Name="btnTableImageList">

    <ItemsControl.ItemTemplate>

      <DataTemplate>

        <Button Content="{Binding Content}" 

                Height="{Binding Height}" 

                Width="{Binding Width}" 

                Tag="{Binding Tag}" 

                Margin="{Binding Margin}" 

                Background="{Binding Background}" 

                HorizontalAlignment="Center"  

                MouseDown="tblButton_MouseDown" 

                MouseUp="tblButton_MouseUp" 

                Click="ClickHandlerTableBtn" 

                TextBlock.TextAlignment="Center" />

      </DataTemplate>

    </ItemsControl.ItemTemplate>

  </ItemsControl>

</Grid>

And code behind:

private void onMouseMove(object sender, MouseEventArgs e)

{

    lblCoord.Content = Mouse.GetPosition(Application.Current.MainWindow);

}

On the form there is Label named lblCoord, and there are two buttons that are created after form is loaded.

I want to display mouse coordinate in lblCoord in relation to the Grid, but coords are displayed only when i move mouse cursor over any of the buttons that are placed inside that grid.

My guess is that I am placing MouseMove="onMouseMove" in wrong place.

Thanks for your help.

edited Nov 21 at 15:00

Lews Therin

2,27811436

asked Nov 21 at 14:53

Bodul

898

I have XAML:

<Grid MouseMove="onMouseMove" >

  <ItemsControl Name="btnTableImageList">

    <ItemsControl.ItemTemplate>

      <DataTemplate>

        <Button Content="{Binding Content}" 

                Height="{Binding Height}" 

                Width="{Binding Width}" 

                Tag="{Binding Tag}" 

                Margin="{Binding Margin}" 

                Background="{Binding Background}" 

                HorizontalAlignment="Center"  

                MouseDown="tblButton_MouseDown" 

                MouseUp="tblButton_MouseUp" 

                Click="ClickHandlerTableBtn" 

                TextBlock.TextAlignment="Center" />

      </DataTemplate>

    </ItemsControl.ItemTemplate>

  </ItemsControl>

</Grid>

And code behind:

private void onMouseMove(object sender, MouseEventArgs e)

{

    lblCoord.Content = Mouse.GetPosition(Application.Current.MainWindow);

}

On the form there is Label named lblCoord, and there are two buttons that are created after form is loaded.

I want to display mouse coordinate in lblCoord in relation to the Grid, but coords are displayed only when i move mouse cursor over any of the buttons that are placed inside that grid.

My guess is that I am placing MouseMove="onMouseMove" in wrong place.

Thanks for your help.

c# wpf

edited Nov 21 at 15:00

Lews Therin

2,27811436

asked Nov 21 at 14:53

Bodul

898

edited Nov 21 at 15:00

Lews Therin

2,27811436

asked Nov 21 at 14:53

Bodul

898

edited Nov 21 at 15:00

Lews Therin

2,27811436

edited Nov 21 at 15:00

Lews Therin

2,27811436

edited Nov 21 at 15:00

Lews Therin

2,27811436

asked Nov 21 at 14:53

Bodul

898

asked Nov 21 at 14:53

Bodul

898

asked Nov 21 at 14:53

Bodul

898

2

Without testing this I know that Button in WPF captures the mouse click, it may also be capturing the MouseMove. I'd have to test and see. If so, in WPF you can use PreviewMouseMove which is captured outmost first. So try using PreviewMouseMove and see if that works. Events are tunneled down from outer most content to inner and raised usually with events prefixed with Preview. Other events are bubbled from inner most to out and do not include the Preview prefix.
– Michael Puckett II
Nov 21 at 14:57

You might need to calculate the possition relative to the screen.
– ikerbera
Nov 21 at 14:59

Same thing happens with PreviewMouseMove. position is shown only when mouse cursor goes over buttons and completly ignores grid, or whatever else is behind cursor except if it's a button.
– Bodul
Nov 21 at 15:00

1

I'll have to play with this in code. What is the content in the button? Verify that content isn't capturing the events. Just scanning it that's my assumption but I'm not sure. It may be that the Grid doesn't fire the MouseMove event if it's transparent bc I know you can click through transparency in WPF. If it's a transparency issue you can make the Background a color that's so transparent (but not completely) you can't see it but it still registers click. Possibly the same with MouseMove...
– Michael Puckett II
Nov 21 at 15:05

1

Buttons are dynamicly created during runtime, so a lot of stuff is loaded from database. But for test you can change XAML button code to <Button Content ="Test" /> it will behave exactly the same.
– Bodul
Nov 21 at 15:08

|
show 6 more comments

2

Without testing this I know that Button in WPF captures the mouse click, it may also be capturing the MouseMove. I'd have to test and see. If so, in WPF you can use PreviewMouseMove which is captured outmost first. So try using PreviewMouseMove and see if that works. Events are tunneled down from outer most content to inner and raised usually with events prefixed with Preview. Other events are bubbled from inner most to out and do not include the Preview prefix.
– Michael Puckett II
Nov 21 at 14:57

You might need to calculate the possition relative to the screen.
– ikerbera
Nov 21 at 14:59

Same thing happens with PreviewMouseMove. position is shown only when mouse cursor goes over buttons and completly ignores grid, or whatever else is behind cursor except if it's a button.
– Bodul
Nov 21 at 15:00

1

I'll have to play with this in code. What is the content in the button? Verify that content isn't capturing the events. Just scanning it that's my assumption but I'm not sure. It may be that the Grid doesn't fire the MouseMove event if it's transparent bc I know you can click through transparency in WPF. If it's a transparency issue you can make the Background a color that's so transparent (but not completely) you can't see it but it still registers click. Possibly the same with MouseMove...
– Michael Puckett II
Nov 21 at 15:05

1

Buttons are dynamicly created during runtime, so a lot of stuff is loaded from database. But for test you can change XAML button code to <Button Content ="Test" /> it will behave exactly the same.
– Bodul
Nov 21 at 15:08

Without testing this I know that Button in WPF captures the mouse click, it may also be capturing the MouseMove. I'd have to test and see. If so, in WPF you can use PreviewMouseMove which is captured outmost first. So try using PreviewMouseMove and see if that works. Events are tunneled down from outer most content to inner and raised usually with events prefixed with Preview. Other events are bubbled from inner most to out and do not include the Preview prefix.
– Michael Puckett II
Nov 21 at 14:57

You might need to calculate the possition relative to the screen.
– ikerbera
Nov 21 at 14:59

Same thing happens with PreviewMouseMove. position is shown only when mouse cursor goes over buttons and completly ignores grid, or whatever else is behind cursor except if it's a button.
– Bodul
Nov 21 at 15:00

I'll have to play with this in code. What is the content in the button? Verify that content isn't capturing the events. Just scanning it that's my assumption but I'm not sure. It may be that the Grid doesn't fire the MouseMove event if it's transparent bc I know you can click through transparency in WPF. If it's a transparency issue you can make the Background a color that's so transparent (but not completely) you can't see it but it still registers click. Possibly the same with MouseMove...
– Michael Puckett II
Nov 21 at 15:05

Buttons are dynamicly created during runtime, so a lot of stuff is loaded from database. But for test you can change XAML button code to <Button Content ="Test" /> it will behave exactly the same.
– Bodul
Nov 21 at 15:08

|
show 6 more comments

1 Answer
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up vote
2
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It will work when you set Background of Grid to anything but Transparent
~~As default, Grid's background is transparent. When it is transparent~~, mouse events work when you set Background="Transparent" too.

Mouse events handled nearest parent element with background IMHO

edited Nov 21 at 15:22

answered Nov 21 at 15:11

tetralobita

384513

add a comment |

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1 Answer
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1 Answer
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up vote
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Mouse events handled nearest parent element with background IMHO

edited Nov 21 at 15:22

answered Nov 21 at 15:11

tetralobita

384513

add a comment |

up vote
2
down vote

accepted

Mouse events handled nearest parent element with background IMHO

edited Nov 21 at 15:22

answered Nov 21 at 15:11

tetralobita

384513

add a comment |

up vote
2
down vote

accepted

Mouse events handled nearest parent element with background IMHO

edited Nov 21 at 15:22

answered Nov 21 at 15:11

tetralobita

384513

Mouse events handled nearest parent element with background IMHO

edited Nov 21 at 15:22

answered Nov 21 at 15:11

tetralobita

384513

edited Nov 21 at 15:22

answered Nov 21 at 15:11

tetralobita

384513

answered Nov 21 at 15:11

tetralobita

384513

answered Nov 21 at 15:11

tetralobita

384513

add a comment |

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