I've tried to create a form that will create buttons based on the number of items in database
my int count is equal to the number of count in my database
I'd like to add events or functions to the created label, that when i click the label it will display in the MesssageBox the name of the label
below is my code,
int Count;
List<Panel> pnl = new List<Panel>();
List<Label> tasklevel = new List<Label>();
List<Label> taskStatus = new List<Label>();
List<Label> taskname = new List<Label>();
List<PictureBox> image = new List<PictureBox>();
for (int i = 0; i < Count; i++)
{
Panel pan = new Panel();
pan.Name = "panel" + i;
pan.BackColor = Color.White;
pan.Dock = DockStyle.Top;
pan.Padding = new Padding(10, 0, 10, 10);
pan.Height = 80;
pnl.Add(pan);
Label lbl = new Label()
{
Name = "lbl" + i,
ForeColor = Color.Black,
//Dock = DockStyle.Left,
AutoSize = false,
Width = 0,
BackColor = Color.Silver,
TextAlign = ContentAlignment.MiddleLeft,
Padding = new Padding(10, 10, 10, 10),
Text = "Designing",
}; tasklevel.Add(lbl);
Label lblname = new Label()
{
Name = "lblname" + i,
ForeColor = Color.Black,
Dock = DockStyle.Left,
AutoSize = false,
Width = 0,
BackColor = Color.Gray,
TextAlign = ContentAlignment.MiddleLeft,
Padding = new Padding(10, 10, 10, 10),
Text = "Designing",
}; taskStatus.Add(lblname);
Label tskname = new Label()
{
Name = "tskName" + i,
ForeColor = Color.FromArgb(31, 31, 31),
Font = new Font("Segoe UI", 11, FontStyle.Regular),
Dock = DockStyle.Left,
AutoSize = false,
Width = 200,
BackColor = Color.Gainsboro,
TextAlign = ContentAlignment.MiddleCenter,
Padding = new Padding(10, 10, 10, 10),
Text = "Task Name",
}; taskname.Add(tskname);
PictureBox picBox = new PictureBox()
{
Name = "picBox" + i,
Dock = DockStyle.Fill,
AutoSize = false,
Image = DreametryMIS.Properties.Resources.f1,
SizeMode = PictureBoxSizeMode.StretchImage,
BackColor = Color.FromArgb(240,240,240),
Padding = new Padding(10, 10, 10, 10),
}; image.Add(picBox);
pan.Controls.Add(picBox);
pan.Controls.Add(lblname);
pan.Controls.Add(lbl);
pan.Controls.Add(tskname);
FlowPanel.Controls.Add(pan);
}
I'm new at c#, I hope some can help me
Implement an event handler like this:
public void label_Clicked(object sender, EventArgs e)
{
Label label = sender as Label;
if (label == null) return;
MessageBox.Show("Name: " + label.Name + " Text: " + label.Text);
}
You can now add this handler to the Click event of your labels, for example:
lblname.Click += label_Clicked;
tskname.Click += label_Clicked;
When one of the labels is clicked now, the method label_Clicked gets called with the label as argument for sender. So by casting the sender to Label you can easily access the clicked label's properties.
Note that you cannot add the handler inside the label's object initializer as you did with the other properties, but need to do it in an extra statement like I showed.
You can too:
lblname.Click += delegate { nameOfUrFunction (lblname) };
private void nameOfUrFunction (Label lbl)</code>
{
}
TableCell cel2 = new TableCell();
Label lbl2 = new Label();
lbl2.Text = s;
cel2.Controls.Add(lbl2);
tr.Cells.Add(cel2);
TableCell cel3 = new TableCell();
DropDownList ddlcountry = new DropDownList();
ddlcountry.ID = s;
cel3.Controls.Add(ddlcountry);
tr.Cells.Add(cel3);
table.Rows.Add(tr);
form1.Controls.Add(table);
DropDownList ddl1 = (DropDownList)form1.FindControl("CountryId");
DropDownList ddlstate = (DropDownList)form1.FindControl("StateId");
ddl1.AutoPostBack = true;
ddl1.SelectedIndexChanged += new EventHandler(ddl1_SelectedIndexChanged);
protected void ddl1_SelectedIndexChanged(object sender, EventArgs e)
{
}
Related
I have a datagrid with modified column header which contain a button which shall open a popup.
This is written in code behind because of different data sources with different number of columns.
That's how it looks like:
Popups are stored in:
Dictionary<string, Popup> HeaderPopups = new Dictionary<string, Popup>();
And here the code behind:
dgMaterials.AutoGeneratingColumn += (ss, ee) =>
{
Button b = new Button() { Content = "...", Name = "btn_" + ee.PropertyName, Margin = new Thickness(3) };
b.Click += HeaderFilterButtonClick;
StackPanel stackPanel = new StackPanel() { Orientation = Orientation.Horizontal };
stackPanel.Children.Add(new TextBlock() { Text = ee.PropertyName, VerticalAlignment = VerticalAlignment.Center });
stackPanel.Children.Add(b);
ee.Column.Header = stackPanel;
Popup pop = new Popup() { Name = "pop_" + ee.PropertyName, Placement = PlacementMode.Bottom, PlacementTarget = b, StaysOpen = false, Width = 200, Margin = new Thickness(3) };
Border bord = new Border() { Background = Brushes.White, BorderBrush = Brushes.Gray, BorderThickness = new Thickness(1,1,1,1) };
pop.DataContext = bord;
HeaderPopups.Add(ee.PropertyName, pop);
StackPanel stack = new StackPanel() { Margin = new Thickness(5, 5, 5, 15) };
bord.DataContext = stack;
StackPanel stackButtons = new StackPanel() { Orientation = Orientation.Horizontal, Margin = new Thickness(0, 0, 0, 15) };
Button bAll = new Button() { Margin = new Thickness(0, 0, 0, 0), Name = "btnAll_" + ee.PropertyName };
bAll.Click += btnAllClick;
TextBlock txtAll = new TextBlock() { Text = "Select All", Foreground = Brushes.Blue, Cursor = Cursors.Hand };
bAll.Content = txtAll;
Button bNone = new Button() { Margin = new Thickness(10, 0, 0, 0), Name = "btnNone_" + ee.PropertyName };
bNone.Click += btnNoneClick;
TextBlock txtNone = new TextBlock() { Text = "Select None", Foreground = Brushes.Blue, Cursor = Cursors.Hand };
bNone.Content = txtNone;
stackButtons.Children.Add(bAll);
stackButtons.Children.Add(bNone);
ListBox list = new ListBox() { Name = "lst_" + ee.PropertyName, BorderThickness = new Thickness(0) };
stack.Children.Add(stackButtons);
stack.Children.Add(list);
};
So for each column a popup is generated and I have the popups with the keys Spec_No, Grade and Class in my HeaderPopups dictionary.
I want the appropriate popups to show up beneath the clicked button, like in the example from http://www.jarloo.com/excel-like-autofilter-in-wpf/
Look here:
My problem is to open these popups in HeaderFilterButtonClick-Event. I tried it with:
private void HeaderFilterButtonClick(object sender, RoutedEventArgs e)
{
Button b = sender as Button;
txtTest.Text += e.OriginalSource.ToString() + Environment.NewLine;
txtTest.Text += e.Source.ToString() + Environment.NewLine;
txtTest.Text += b.Name;
if (b.Name == "btn_Spec_No")
{
HeaderPopups["Spec_No"].IsOpen = true;
}
}
but it doesn't work.
Can anybody help?
Your Popup is currently empty and thus completely invisible.
You should set the Child property of it to the Border and also set the Child property of the Border to something for it to render:
Popup pop = new Popup() { ... };
Border bord = new Border() { Background = Brushes.White, BorderBrush = Brushes.Gray, BorderThickness = new Thickness(1, 1, 1, 1) };
bord.Child = new TextBlock() { Text = "some content..." };
pop.Child = bord;
The popup is opening and rendering, but it is empty, so it can't be seen.
the problem is here
Border bord = new Border() { Background = Brushes.White, BorderBrush = Brushes.Gray, BorderThickness = new Thickness(1,1,1,1) };
pop.DataContext = bord;
Datacontext is used to set Binding targets, which an empty popup has no bindings.
You need the fill the child object instead by changing the above into
Border bord = new Border() { Background = Brushes.White, BorderBrush = Brushes.Gray, BorderThickness = new Thickness(1,1,1,1) };
pop.Child = bord;
this sets the root of the popup container to ther Border object.
You will also have to do the same with the stack panel and border
StackPanel stack = new StackPanel() { Margin = new Thickness(5, 5, 5, 15) };
bord.Child = stack;
I have created a user authentication form at runtime that is supposed to have focus when it is loaded. I want to have focus on the first textbox which is for the username, but when the form loads both the form and textbox do not have focus. If I click on the form then the focus will be set to the appropriate textbox.
Form frm = Variables.FormCntrls.fmAuth;
frm.Width = 315;
frm.Height = 175;
frm.StartPosition = FormStartPosition.CenterScreen;
frm.FormBorderStyle = FormBorderStyle.None;
frm.TopMost = true;
frm.BackColor = Color.Black;
frm.ShowInTaskbar = false;
frm.Opacity = .9;
frm.Name = "userAuthentication";
frm.ShowInTaskbar = false;
frm.KeyPreview = true;
frm.Visible = true;
frm.Enabled = true;
Label lb = new Label()
{
Text = "User Authentication",
Width = frm.Width - 20,
Height = 30,
TextAlign = ContentAlignment.MiddleCenter,
Left = 10,
Top = 10,
ForeColor = Color.White,
Font = new Font("Arial", 16, FontStyle.Bold | FontStyle.Underline)
};
frm.Controls.Add(lb);
lb = new Label()
{
Text = "Username: ",
AutoSize = true,
TextAlign = ContentAlignment.MiddleCenter,
Left = 10,
Top = lb.Bottom + 20,
ForeColor = Color.White,
Font = new Font("Arial", 10, FontStyle.Bold)
};
frm.Controls.Add(lb);
TextBox tb = new TextBox()
{
Name = "user",
Width = 200,
Left = lb.Right + 2,
Top = lb.Top,
ForeColor = Color.Black,
TabIndex = 1,
};
frm.Controls.Add(tb);
tb.Select();
lb = new Label()
{
Text = "Password: ",
AutoSize = true,
TextAlign = ContentAlignment.MiddleCenter,
Left = lb.Left,
Top = lb.Bottom + 20,
ForeColor = Color.White,
Font = new Font("Arial", 10, FontStyle.Bold)
};
frm.Controls.Add(lb);
tb = new TextBox()
{
Name = "pass",
Width = tb.Right - (lb.Right + 2),
Left = lb.Right + 2,
Top = lb.Top,
ForeColor = Color.Black,
PasswordChar = '*',
TabIndex = 2,
};
frm.Controls.Add(tb);
Button btn = new Button()
{
Name = "UserAuthenticationBtn",
Width = 75,
Height = 30,
Left = tb.Right - 75,
Top = tb.Bottom + 15,
Text = "Login",
BackColor = default(Color),
UseVisualStyleBackColor = true,
TabIndex = 3,
};
btn.Click += new EventHandler(controlActions.btnActions.btnAuthorize);
frm.Controls.Add(btn);
btn = new Button()
{
Name = "Cancel",
Width = 75,
Height = 30,
Left = btn.Left - 85,
Top = tb.Bottom + 15,
Text = "Cancel",
BackColor = default(Color),
UseVisualStyleBackColor = true,
TabIndex = 4,
};
btn.Click += new EventHandler(controlActions.btnActions.btnCancle);
frm.Controls.Add(btn);
}
}
Any help with this would be great. I am sure I am just missing a simple detail somewhere.
Try this when you create the control:
tb.Focus();
tb.Select();
Ok so I have this code to create controls on my form:
public CableID_DuplicateView(CableID_CreateView CView)
{
InitializeComponent();
Label lbl = new Label();
Button btn = new Button();
ComboBox cmb = new ComboBox();
TextBox txt = new TextBox();
if (CView.input == 1)
{
lbl.Text = "Please select a cable number to duplicate:";
lbl.Location = new Point(12, 9);
cmb.Location = new Point((lbl.Width + 17), 6);
cmb.Size = new System.Drawing.Size(125, 20);
btn.Location = new Point((lbl.Width + cmb.Width + 17), 5);
btn.Size = new System.Drawing.Size(90, 23);
btn.Text = "Add to Table";
this.Height = cmb.Height + 48;
this.Width = lbl.Width + cmb.Width + btn.Width + 34;
this.Controls.Add(lbl);
this.Controls.Add(cmb);
this.Controls.Add(btn);
}
}
Which produces this:
What is causing my label to get cut off like that? And why is the comboBox sitting in a strange location?
What is happening here is that label.width is 100 which is not covering the whole text do this instead:
lbl.Text = "Please select a cable number to duplicate:";
lbl.Location = new Point(12, 9);
lbl.Width = 200;
You can also do this:
lbl.AutoSize = true;
Try this to set AutoSize width Property:
lbl.Text = "Please select a cable number to duplicate:";
lbl.Location = new Point(12, 9);
lbl.AutoSize = true;
this.Controls.Add(lbl);
Width property will not be set until the control has been added to the parent container.
Problem : You didn't set Width for your Label Control.so it takes some default width for your Label
Solution: You need to set Width for your Label
Try This:
lbl.Size = new System.Drawing.Size(200, 20); //width = 200, height = 20
As others said the width for the label is too short.
Solution 1: Set the width to a larger fixed width:
lbl.Width = 200;
Solution 2: Set AutoSize to true:
lbl.AutoSize = true;
Solution 3: Combine a fixed width with the AutoEllipsis property:
lbl.Width = 100;
lbl.AutoEllipsis = true;
When using AutoEllipsis the label remains the set width,
but the shown text is followed by three dots to indicate that not all text is shown.
I have some trouble when i'm trying to click my dynamic controls in StackPanel.
I'm adding controls to Grid in this way...
void Opt()
{
TextBlock Title_1 = new TextBlock();
TextBlock Title_2 = new TextBlock();
CheckBox Kwota_exists = new CheckBox();
TextBox Title = new TextBox();
StackPanel Frame = new StackPanel();
Button OK = new Button();
Title_1.Text = "Dodaj kategorię";
Title_2.Text = "Aktywne kategorię";
Kwota_exists.Content = "Stała kwota?";
Title.Text = "Nazwa kategorii";
OK.Content = "Dodaj";
OK.IsEnabled = true;
OK.IsHitTestVisible = true;
OK.IsTabStop = true;
OK.ClickMode = ClickMode.Release;
Frame.IsHitTestVisible = true;
Kwota_exists.Checked +=Kwota_exists_Checked;
Title_1.FontSize = 50;
Title_2.FontSize = 50;
Title.FontSize = 20;
Frame.Height = 100;
Frame.Width = 400;
Title_1.Margin = new Thickness(0, 0, 0, 0);
Title_2.Margin = new Thickness(0, 220, 0, 0);
Frame.Margin = new Thickness(0, 70, 0, 0);
Frame.HorizontalAlignment = Windows.UI.Xaml.HorizontalAlignment.Left;
Frame.VerticalAlignment = Windows.UI.Xaml.VerticalAlignment.Top;
Frame.Orientation = Orientation.Horizontal;
Frame.Background = new SolidColorBrush(Windows.UI.Color.FromArgb(145, 56, 234, 21));
Frame.Children.Add(Kwota_exists);
Frame.Children.Add(Title);
Frame.Children.Add(OK);
GrdContent.Children.Add(Frame);
GrdContent.Children.Add(Title_1);
GrdContent.Children.Add(Title_2);
}
But when i'm trying to click button or check checkbox controls doesn't seem to response (unclickable).
Looks like i can't access them or i'm doing something wrong. I would be gradefull if someone explain me where i'm doing mistake.
TableLayoutPanel t = new TableLayoutPanel();
t.RowStyles.Add(new RowStyle(SizeType.AutoSize));
t.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 100));
t.CellBorderStyle = TableLayoutPanelCellBorderStyle.Single;
Label lbl = new Label();
lbl.Margin = new System.Windows.Forms.Padding(20, 150, 20, 20);
lbl.Text = "Hello";
t.Controls.Add(lbl, 0, 0);
this.Text = t.Size.Height.ToString();
this.Controls.Add(t);
Why the t.Size.Height property gives me 100 always ?
The reason this always was returning 100 is that you need:
AutoSize = true
AutoSizeMode =AutoSizeMode.GrowAndShrink
t.RowCount >= 1
t.ColumnCount >= 1
TableLayoutPanel t = new TableLayoutPanel();
t.AutoSize = true; //added
t.AutoSizeMode =AutoSizeMode.GrowAndShrink; //added
t.RowCount = 1; //added
t.ColumnCount = 1; //added
t.RowStyles.Add(new RowStyle(SizeType.AutoSize));
t.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 100));
t.CellBorderStyle = TableLayoutPanelCellBorderStyle.Single;
Label lbl = new Label();
lbl.Margin = new System.Windows.Forms.Padding(20, 150, 20, 20);
lbl.Text = "Hello";
t.Controls.Add(lbl, 0, 0);
this.Controls.Add(t);
this.Text = t.Size.Height.ToString(); //moved
You also need to move your Height check to after you have added the Table to the form, else no layout operations will have happened.