From code behind I can set some generic things to my groupbox and stackpanel but I cant find anything on how to highlight a stack panel from code behind.
GroupBox groupbox = new GroupBox();
groupbox.Header = String.Format(node.Element("StudentID").Value);
groupbox.Width = 100;
groupbox.Height = 100;
groupbox.Margin = new Thickness(1);
TextBlock textBlock = new TextBlock();
textBlock.Text = String.Format(node.Element("FirstName").Value + " " + (node.Element("LastName").Value));
textBlock.TextAlignment = TextAlignment.Center;
TextBlock textBlock1 = new TextBlock();
textBlock1.Text = (DateTime.Parse(node.Element("TimeAdded").Value)).ToString("d");
String.Format("{0:d/M/yyyy}", DateTime.Parse(node.Element("TimeAdded").Value));
textBlock1.TextAlignment = TextAlignment.Center;
textBlock1.VerticalAlignment = VerticalAlignment.Bottom;
StackPanel stackPanel = new StackPanel();
stackPanel.Children.Add(groupbox);
stackPanel.Children.Add(textBlock);
stackPanel.Children.Add(textBlock1);
stackPanel.Margin = new Thickness(5);
I wish to on mouse over create a highlight of a ligher grey, also this code belongs to a customcontrol.
Add handlers for the MouseEnter and MouseLeave events:
public MainWindow()
{
InitializeComponent();
StackPanel stackpanel = new StackPanel();
stackpanel.MouseEnter += new MouseEventHandler(stackpanel_MouseEnter);
stackpanel.MouseLeave += new MouseEventHandler(stackpanel_MouseLeave);
}
void stackpanel_MouseLeave(object sender, MouseEventArgs e)
{
StackPanel stackpanel = (StackPanel)sender;
stackpanel.Background = Brushes.Transparent;
}
void stackpanel_MouseEnter(object sender, MouseEventArgs e)
{
StackPanel stackpanel = (StackPanel)sender;
stackpanel.Background = Brushes.LightGray;
}
Related
So I need to add textboxes to a panel with a click of a button. Every click adds one textbox under the last one and so on. But when it goes over the panel height it suddenly makes bigger space between the texboxes even though the int is still the same.
Here's my code so far.
List<TextBox> textboxes = new List<TextBox>();
private void button1_Click(object sender, EventArgs e)
{
tbY += 30;
TextBox tb = new TextBox();
tb.Left = 3;
tb.Top = tbY;
tb.Font = new Font("Verdana", 12, FontStyle.Bold);
tb.Size = new Size(325, 25);
tb.BorderStyle = BorderStyle.None;
button1.Top = tbY;
panel1.Controls.Add(tb);
textboxes.Add(tb);
ScrollToBottom(panel1);
}
The Top of a Control is calculated relative to the scroll position of its Parent.
You are always scrolling to the bottom of your Panel, so you need to set it like this, taking the curent scroll position into account:
tb.Top = tbY + panel1.AutoScrollPosition.Y;
Note that the AutoScrollPosition.Y is negative when you have scrolled downward, so we need to add it!
You might as well use a flowLayoutPanel for this purpose. Use the following properties on your flowLayoutPanel and it'll work as you intend. (without having to do the manual calculation)
List<TextBox> textboxes = new List<TextBox>();
public Form1()
{
InitializeComponent();
flowLayoutPanel1.FlowDirection = FlowDirection.TopDown;
flowLayoutPanel1.WrapContents = false;
flowLayoutPanel1.AutoScroll = true;
}
private void button1_Click(object sender, EventArgs e)
{
TextBox tb = new TextBox();
tb.Left = 3;
tb.Font = new Font("Verdana", 12, FontStyle.Bold);
tb.Size = new Size(325, 25);
tb.Text = tb.Top.ToString();
tb.BorderStyle = BorderStyle.None;
flowLayoutPanel1.Controls.Add(tb);
textboxes.Add(tb);
}
I am dynamically generating rows in a XAML grid:
for (int i = 0; i < AssociatedSteps.Length; i++)
{
//if (i == 0 || AssociatedSteps[i].OriginPkg != AssociatedSteps[i-1].OriginPkg)
//{
//Define new Row to add
RowDef = new RowDefinition();
RowDef.Height = new GridLength(60);
//Add row definition to Grid
WorkPackageViewResults.RowDefinitions.Add(RowDef);
//Define the control that will be added to new row
Text1 = new TextBlock();
Text1.Text = AssociatedSteps[i].SF01;
Text1.Width = Settings.workPackageColumn5Width;
Text1.TextAlignment = TextAlignment.Center;
Text2 = new TextBlock();
Text2.Text = AssociatedSteps[i].SF10;
Text2.Width = Settings.workPackageColumn5Width;
Text2.TextAlignment = TextAlignment.Center;
Text3 = new TextBlock();
Text3.Text = AssociatedSteps[i].OriginPkg;
Text3.Width = Settings.workPackageColumn5Width;
Text3.TextAlignment = TextAlignment.Center;
Button1 = new Button();
Button1.Content = AssociatedSteps[i].Description;
Button1.Width = Settings.workPackageColumn5Width;
Button1.Click += new RoutedEventHandler(ProgressUpdateButton_Click);
Button1.Tag = AssociatedSteps[i].StepID;
//create stackpanel and define which row to add the stackpanel to
StackP = new StackPanel();
//StackP.Background = new SolidColorBrush(Colors.Wheat);
StackP.SetValue(Grid.RowProperty, i);
StackP.Orientation = Orientation.Horizontal;
StackP.Margin = new Thickness(0, 0, 0, 0);
PercentComplete = new TextBlock();
PercentComplete.Text = (Convert.ToDouble(AssociatedSteps[i].ToDateQty) / Convert.ToDouble(AssociatedSteps[i].MTOQty)).ToString();
PercentComplete.Width = Settings.workPackageColumn5Width;
PercentComplete.TextAlignment = TextAlignment.Center;
//add your control to the stackpanel
StackP.Children.Add(Text1);
StackP.Children.Add(Text2);
StackP.Children.Add(Text3);
StackP.Children.Add(Button1);
StackP.Children.Add(PercentComplete);
//add the stackpanel to the grid
WorkPackageViewResults.Children.Add(StackP);
}
I'm trying to use LINQ to get access to the grid being programatically updated above:
<Grid Name="WorkPackageViewResults">
</Grid>
I'm not seeing they type of options you would for a cell. I want to to access a particular rows PercentComplete TextBlock so I can update the text. How do I accomplish this?
Since there's only one StackPanel you could say e => e.GetType() == typeof(StackPanel). If you ever have many, then add a Name to the StackPanel and pull it by that.
I am working in silverlight and under a very strange situation that i need to implement my own SelectionChangedEventHandler handler function .The reason to do so is:
I have my situation like this :
private static Grid GenerateList(Parameter param, int LoopCount, Grid g)
{
Grid childGrid = new Grid();
ColumnDefinition colDef1 = new ColumnDefinition();
ColumnDefinition colDef2 = new ColumnDefinition();
ColumnDefinition colDef3 = new ColumnDefinition();
childGrid.ColumnDefinitions.Add(colDef1);
childGrid.ColumnDefinitions.Add(colDef2);
childGrid.ColumnDefinitions.Add(colDef3);
TextBlock txtblk1ShowStatus = new TextBlock();
TextBlock txtblkLabel = new TextBlock();
ListBox lines = new ListBox();
ScrollViewer scrollViewer = new ScrollViewer();
scrollViewer.VerticalScrollBarVisibility = ScrollBarVisibility.Visible;
lines.ItemsSource = param.Component.Attributes.Items;
scrollViewer.Content = lines;
Grid.SetColumn(scrollViewer, 1);
Grid.SetRow(scrollViewer, LoopCount);
childGrid.Children.Add(scrollViewer);
lines.SelectedIndex = 0;
lines.SelectedItem = param.Component.Attributes.Items;// This items contains 1000000,3 00000, and so on.
lines.SelectionChanged += new SelectionChangedEventHandler(List_SelectionChanged);
// lines.SelectionChanged += new SelectionChangedEventHandler(List_SelectionChanged(lines, txtblk1ShowStatus));
lines.SelectedIndex = lines.Items.Count - 1;
Grid.SetColumn(txtblk1ShowStatus, 2);
Grid.SetRow(txtblk1ShowStatus, LoopCount);
childGrid.Children.Add(txtblk1ShowStatus);
g.Children.Add(childGrid);
return (g);
}
static void List_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
MessageBox.Show("clist _SelectionChanged1");
//The problem is line below because i am "lines" and "txtblk1ShowStatus" are not in the
//scope of this function and i cannot declare them globally.
txtblk1ShowStatus.Text = lines[(sender as ListBox).SelectedIndex];
}
Here you can see that i have no access of of "lines" and "txtblk1ShowStatus" in the List_SelectionChanged(object sender, SelectionChangedEventArgs e) function. And i cannot declate the button and list globally because this function GenerateList(...) will be reused and it's just coded in c# (no xaml used).Please let me know how to do that and also explain how to do that if you have another way to do but please explain your code with detail
I think a lambda expression will help you solve your issues (you might need to edit it):
lines.SelectedIndex = 0;
lines.SelectedItem = param.Component.Attributes.Items;// This items contains 1000000,3 00000, and so on.
lines.SelectionChanged += (o,e) => {
MessageBox.Show("clist _SelectionChanged1");
txtblk1ShowStatus.Text = lines.SelectedItem.ToString();
};
lines.SelectedIndex = lines.Items.Count - 1;
What I am looking for is for the user to
1. click on the canvas
2. a new label show up and the user can enter text.
3. When the user clicks elsewhere or hit enter the labels is finished editing.
This is what I have so far...
private void DrawingCanvas_MouseLeftButtonUp(object sender, MouseButtonEventArgs e) {
var canvas = (Canvas)sender;
var point = e.GetPosition(canvas);
Label lbl = new Label();
lbl.Content = "start typing";
//lbl.Left = location.X;
//lbl.Top = location.Y;
//lbl.Focus = Boolean.TrueString;
canvas.Children.Add(lbl);
}
Any help would be greatly appreciated, thanks!
Try like this
<Window x:Class="WpfApplication2.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Canvas x:Name="cnvs" PreviewMouseLeftButtonUp="cnvs_MouseLeftButtonUp" Background="Transparent"></Canvas>
private void cnvs_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
var canvas = (Canvas)sender;
var point = e.GetPosition(canvas);
TextBox txtBox = new TextBox() {Width=80,AcceptsReturn=false };
canvas.Children.Add(txtBox);
Canvas.SetLeft(txtBox, point.X);
Canvas.SetTop(txtBox, point.Y);
txtBox.Focus();
}
I hope this will help.
UPDaTE:
var canvas = (Canvas)sender;
var point = e.GetPosition(canvas);
TextBox txtBox = new TextBox() {AcceptsReturn=false ,BorderThickness=new Thickness(0)};
Binding b = new Binding("Text") { RelativeSource = new RelativeSource(RelativeSourceMode.Self) };
txtBox.SetBinding(TextBox.WidthProperty, b);
canvas.Children.Add(txtBox);
Canvas.SetLeft(txtBox, point.X);
Canvas.SetTop(txtBox, point.Y);
txtBox.Focus();
Try setting the textbox width to Double.NaN. This will give you an "Auto" width. To get rid of the border, set the textbox's borderthickness to 0. See below:
private void cnvs_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
var canvas = (Canvas)sender;
var point = e.GetPosition(canvas);
var txtBox = new TextBox() { Width=Double.NaN, AcceptsReturn=false }; // auto width
txtBox.BorderThickness = new Thickness(0); // no border
canvas.Children.Add(txtBox);
Canvas.SetLeft(txtBox, point.X);
Canvas.SetTop(txtBox, point.Y);
txtBox.Focus();
}
this is my very first program in WP7, so i have some issues.
I'm trying to populate a grid with an list of objects that has been bought by another method. Here what i made so far:
public partial class MainPage : PhoneApplicationPage
{
private List<Row> lsResult;
private Grid myGrid = new Grid();
private int i = 0;
// Constructor
public MainPage()
{
InitializeComponent();
ColumnDefinition colData = new ColumnDefinition();
ColumnDefinition colOcorrencia = new ColumnDefinition();
ColumnDefinition colSituacao = new ColumnDefinition();
myGrid.ColumnDefinitions.Add(colData);
myGrid.ColumnDefinitions.Add(colOcorrencia);
myGrid.ColumnDefinitions.Add(colSituacao);
myGrid.ShowGridLines = true;
SolidColorBrush myBrush = new SolidColorBrush(Colors.White);
myGrid.Background = myBrush;
gridResult = myGrid;
}
private void button1_Click(object sender, RoutedEventArgs e)
{
i = 0;
lsResult = null;
lsResult = Rastrear.Busca(txtNumber.Text);
foreach (Row r in lsResult)
{
RowDefinition rNewRow = new RowDefinition();
myGrid.RowDefinitions.Add(rNewRow);
TextBlock lblData = new TextBlock();
lblData.Text = r.Data.ToString();
lblData.HorizontalAlignment = HorizontalAlignment.Center;
lblData.VerticalAlignment = VerticalAlignment.Center;
Grid.SetColumnSpan(lblData, 1);
Grid.SetRow(lblData, i);
TextBlock lblOcorrencia = new TextBlock();
lblOcorrencia.Text = r.Ocorrencia.ToString() ;
Grid.SetColumnSpan(lblOcorrencia, 2);
Grid.SetRow(lblOcorrencia, i);
TextBlock lblSituacao = new TextBlock();
lblSituacao.Text = r.Situacao.ToString();
Grid.SetColumnSpan(lblSituacao, 3);
Grid.SetRow(lblSituacao, i);
i++;
myGrid.Children.Add(lblData);
myGrid.Children.Add(lblOcorrencia);
myGrid.Children.Add(lblSituacao);
}
gridResult = myGrid;
}
}
The method Buscar() is returning the list as it should, but when i click on the button it doesn't do anything, not even the paint to white on the constructor happens actually.
thanks in advance
You're doing some pretty shady stuff in your code behind that i'm used to seeing and should be done in xaml. Change this
gridResult = myGrid;
to
gridResult.Children.Add(myGrid);
I don't think you can just change references of static UI elements like that.