I have Xml file which stores names of objects. When I start the program, I load the object names and then make new label for each object name.
(I know there is posibility to move labels by using _MouseMove() and _MouseDown() methods, but it works only if I put the label by drag and drop in [Project] or create new label by Label label = new Label();. Generally: when control object has his own name.)
So is there any posibility to move labels which was added by the code like here below?
public List<Activities> listOfActivities = new List<Activities>();
listOfActivities = XmlSerialization.ReadFromXmlFile<List<Activities>>("activities.txt");
foreach (Activities activity in listOfActivities)
{
Point point = new Point(activity.xLabel, activity.yLabel);
Label label = new Label();
label.Text = activity.name;
label.Location = point;
label.Visible = true;
this.Controls.Add(label);
}
Related
I'm adding items to ListView during run time.
OnClick button adds one TextBlock to ListView. Here is code:
private async void addPlayerButton_Click(object sender, RoutedEventArgs e)
{
Grid g = new Grid();
ColumnDefinition c1 = new ColumnDefinition();
ColumnDefinition c2 = new ColumnDefinition();
c1.Width = new GridLength(0, GridUnitType.Auto);
c2.Width = new GridLength(0, GridUnitType.Auto);
g.ColumnDefinitions.Add(c1);
g.ColumnDefinitions.Add(c2);
PlayersName dialog2 = new PlayersName();
var result2 = await dialog2.ShowAsync();
if(result2 == ContentDialogResult.Primary)
{
RowDefinition ri = new RowDefinition();
ri.Height = new GridLength(0, GridUnitType.Auto);
g.RowDefinitions.Add(ri);
TextBlock label = new TextBlock();
TextBlock counter = new TextBlock();
counter.Text = "0";
label.Text = dialog2.Text;
g.Children.Add(label);
g.Children.Add(counter);
Grid.SetRow(label, 0);
Grid.SetColumn(label, 0);
Grid.SetRow(counter, 1);
Grid.SetColumn(counter, 1);
}
list.Items.Add(g);
}
And all of that works as it should.
But, how can I later change value of Text for, let's say, control named counter? I have to do that from another function, and also, it looks like I have more than one control named counter, because each time a button is clicked (addPlayerButton_Click), an instance of counter is added.
How do I keep track of controls added at runtime?
You have more than one control for which the referring local variable name is counter. Note that it doesn't mean you have multiple controls that go by the Name of counter. One option is to give each of them a name (each time different), like
counter.Name = "something"
Or put them under a common parent, like a Panel. You can also make a class level variable (list, dictionary or similar). Each time a button is clicked, add your local reference to it.
I have a form which contains a dynamically added TableLayoutPanel, which contains some dynamically added Labels, TextBox, CheckBox. I am obtaining exactly the visualization I would like to have, but I am struggling to get the "tab key" to work for moving from one control to the other.
I have tried to add a:
control.TabIndex = tabIndex++;
control.TabStop = true;
But this doesn't seem to have any impact...
This is the (tested) stub code:
class MyForm : Form
{
public MyForm()
{
InitializeComponent();
string[] titles = {"first","second"};
var myLayout = new TableLayoutPanel();
myLayout.AutoSize = true;
int myTabIndex = 1; //Not really necessary
int rowNumber = 0;
foreach (var title in titles)
{
var label = new Label();
label.Text = title;
myLayout.Controls.Add(label, 0, rowNumber);
var control = new TextBox();
control.TabIndex = myTabIndex++; //Not really necessary
myLayout.Controls.Add(control, 1, rowNumber);
rowNumber++;
}
this.Controls.Add(myLayout);
}
}
This is the window I get, and I am not able to navigate from first to second field using the tab key.
Update:
Applying Visual Studio 2013 Update 5 did not help.
Something must have been corrupted in my project. The best I could do is to move on with a new clean Windows Form project, and everything now is working.
I am new at C# & XAML development. I created a metro app with several textboxes. These textboxes are loaded in XAML data through a StackPanel in C# code, it has to be hardcoded. The problem is, I have no clue how I can add some empty spaces between every single textbox. Has anyone an idea?
The Code :
private void AddLastestCreatedField()
{
// Load the last created Field From DB
DBFunction.FieldTypes latestField;
DBFunction.Class1 myDBClass = new DBFunction.Class1();
latestField = myDBClass.GetLastestField();
// add new textbox and put it on the screen
var dragTranslation = new TranslateTransform();
//Generate the TextBox
TextBox fieldTextBox = new TextBox();
fieldTextBox.Name = "fieldTextBox_" + latestField.ID.ToString();
fieldTextBox.FontSize = 15;
fieldTextBox.Background.Opacity = 0.8;
ToolTip toolTip = new ToolTip();
toolTip.Content = latestField.Description;
ToolTipService.SetToolTip(fieldTextBox, toolTip);
fieldTextBox.IsReadOnly = true;
// Add Drag and Drop Handler for TextBox
fieldTextBox.ManipulationMode = ManipulationModes.All;
fieldTextBox.ManipulationDelta += fieldTextBox_ManipulationDelta;
fieldTextBox.ManipulationCompleted += fieldTextBox_ManipulationCompleted;
fieldTextBox.RenderTransform = dragTranslation;
dragTranslationDict.Add(fieldTextBox.Name, dragTranslation);
fieldTextBox.RenderTransform = dragTranslation;
// Add TextBox to a List to control later
TxtBoxList.Add(fieldTextBox);
// Generate TextBlock for each TextBlock
TextBlock fieldTextBlock = new TextBlock();
// fieldTextBlock.Name = "fieldTextBlock_" + cnt.ToString();
fieldTextBlock.TextAlignment = TextAlignment.Right;
fieldTextBlock.HorizontalAlignment = Windows.UI.Xaml.HorizontalAlignment.Right;
fieldTextBlock.Name = "fieldTextBlock_" + latestField.ID.ToString();
fieldTextBlock.Text = latestField.Name;
fieldTextBlock.FontSize = 15;
fieldTextBlock.Height = 33;
// Add Drag and Drop Handler for TextBlock
var dragTranslation2 = new TranslateTransform();
fieldTextBlock.RenderTransform = dragTranslation2;
dragTranslationDict2.Add(fieldTextBlock.Name, dragTranslation2);
// Add TextBlock to a list to control later
TxtBlockList.Add(fieldTextBlock);
TextBoxStack.Children.Add(fieldTextBox);
TextBlockStack.Children.Add(fieldTextBlock);
}
I'll skip the usual "What have you tried?" question and say you probably can get what you need by setting the Margin property on the TextBox - the Margin property will add "space" around the control size as a sort of padding (not to be confused with the Padding property, which will add space inside the control extents)
I don't know what you are really up to, but either use the Margin-property of the textbox. It defines, how much space there will be around the control,
See MSDN for more information.
I am creating a simple application that keeps track of coins. I have a button that creates a new tab in a tabcontrol container. I am wanting to add some textboxes to the newly added tabs. The below code adds a textbox to my main tab called "Control". I have tried playing around with that field, but it always adds it to the main page called control. How would I do this? I have the following code:
string name = txtName.Text;
//validate information
try { }
catch { }
//create new tab
string title = name;
TabPage myTabPage = new TabPage(title);
tabControl1.TabPages.Add(myTabPage);
//Add text boxes
TextBox tb = new TextBox();
tb.Location = new System.Drawing.Point(250, 75);
tb.Name = "TextBoxName";
tb.Size = new System.Drawing.Size(184, 20);
Control.Controls.Add(tb);
//put data inside of textboxes
tb.Text = txtCoin.Text;
myTabPage.Controls.Add(tb);
You need to add the text box to the controls collection of the new tab:
//Control.Controls.Add(tb); //Replace this line
myTabPage.Controls.Add(tb);
change
Control.Controls.Add(tb)
to
tabControl1.TabPages.Last().Controls.Add(tb)
tabControl1.TabPages.OfType<TabPage>().Last().Controls.Add(tb)
I have three Tabs in my Windows Forms form. Depending on the selected RadioButton in the TabPages[0], I added few dynamic controls on the relevant TabPage. On the Button_Click event the controls are added, but the problem is I'm not able to remove the dynamically added controls from the other (irrelevant) TabPage.
Here's my code:
Label label235 = new Label();
TextBox tbMax = new TextBox();
label235.Name = "label235";
tbMax.Name = "txtBoxNoiseMax";
label235.Text = "Noise";
tbMax.ReadOnly = true;
label235.ForeColor = System.Drawing.Color.Blue;
tbMax.BackColor = System.Drawing.Color.White;
label235.Size = new Size(74, 13);
tbMax.Size = new Size(85, 20);
if (radioButton1.Checked)
{
label235.Location = new Point(8, 476);
tbMax.Location = new Point(138, 473);
tabControl.TabPages[1].Controls.Add(label235);
tabControl.TabPages[1].Controls.Add(tbMax);
tabControl.TabPages[2].Controls.RemoveByKey("label235");
tabControl.TabPages[2].Controls.RemoveByKey("tbMax");
}
else
{
label235.Location = new Point(8, 538);
tbMax.Location = new Point(138, 535);
tabControl.TabPages[1].Controls.RemoveByKey("label235");
tabControl.TabPages[1].Controls.RemoveByKey("tbMax");
tabControl.TabPages[2].Controls.Add(label235);
tabControl.TabPages[2].Controls.Add(tbMax);
}
Where am I making that mistake?
First of all, tbMax's name is not "tbMax", but "txtBoxNoiseMax". So for one, it won't be able to find the TextBox on RemoveByKey.
You're making new controls each time.
As lc already mentioned:
You named your TextBox variable tbMax, but you gave it the name txtBoxNoiseMax. If you take a look into the description of RemoveByKey, you'll see it works on the Name property. So you should change
tbMax.Name = "txtBoxNoiseMax";
into
tbMax.Name = "tbMax";