I need to dynamically create buttons with labels under them in a flowLayoutPanel when i drop a file onto the form. But how do I set the label position to be under the button since the FLP is arranging the controls by itself.. ?
What I've tried:
void Form1_DragDrop(object sender, DragEventArgs e)
{
string[] fileList = e.Data.GetData(DataFormats.FileDrop) as string[];
foreach (string s in fileList)
{
Button button = new Button();
button.Click += new EventHandler(this.button_Click);
fl_panel.Controls.Add(button);
Icon icon = System.Drawing.Icon.ExtractAssociatedIcon(filename);
Bitmap bmp = icon.ToBitmap();
button.BackgroundImage = bmp;
button.Width = 60;
button.Height = 75;
button.FlatStyle = FlatStyle.Flat;
button.BackgroundImageLayout = ImageLayout.Stretch;
int space = 5;
int Yy = button.Location.Y;
int Xx = button.Location.X;
Label label = new Label();
label.Location = new Point(Yy + space, Xx);
//label.Margin.Top = button.Margin.Bottom;
fl_panel.Controls.Add(label);
}
}
The best idea I know of is to implement a custom control that contains both a button and a label that are arranged correctly. Then add the custom control to the FlowLayoutPanel.
public class CustomControl:Control
{
private Button _button;
private Label _label;
public CustomControl(Button button, Label label)
{
_button = button;
_label = label;
Height = button.Height + label.Height;
Width = Math.Max(button.Width, label.Width);
Controls.Add(_button);
_button.Location = new Point(0,0);
Controls.Add(_label);
_label.Location = new Point(0, button.Height);
}
}
You can then add to it like this:
for (int i = 0; i < 10; i++)
{
CustomControl c = new CustomControl(new Button {Text = "Button!"}, new Label {Text = "Label!"});
fl_panel.Controls.Add(c);
}
EDIT:
If you want to listen to button events, try this:
for (int i = 0; i < 10; i++)
{
var button = new Button {Text = "Button " + i};
CustomControl c = new CustomControl(button, new Label {Text = "Label!"});
button.Click += buttonClicked;
fl_panel.Controls.Add(c);
}
...
private void buttonClicked(object sender, EventArgs e)
{
MessageBox.Show(((Button) sender).Text);
}
Related
I use flowlayout panel for dynamically create labels. So I want to use righ click menu for this dynamic created labels but contextmenustrip just recognize flowlayoutpanel. For example I right click and get label.text but couldnt. Is there any way for right click menu for dynamic objects?
Label addlabel(int i)
{
Label L = new Label();
L.Name = "LBL" + i.ToString();
L.Text = "LBL" + i.ToString();
L.ForeColor = Color.Black;
L.BackColor = Color.Gray;
L.Width = 94;
L.Height = 21;
L.TextAlign = ContentAlignment.MiddleCenter;
L.Margin = new Padding(5);
return L;
}
for (int i = 0; i < 10; i++)
{
Label L = addlabel(i);
flowLayoutPanel1.Controls.Add(L);
}
Sure...just set the ContextMenuStrip property of the Labels as you create them:
L.ContextMenuStrip = contextMenuStrip1;
If you want to get the Label that was the "source" of the menu, then use code like this:
private void editToolStripMenuItem_Click(object sender, EventArgs e)
{
if (contextMenuStrip1.SourceControl is Label)
{
Label lbl = (Label)contextMenuStrip1.SourceControl;
MessageBox.Show(lbl.Text);
}
}
I am creating List of Panel. Each panel Contain a Label and Button . I have also a Button(button1). I want to change the label text of (panels[0]) when click button1. How can I do this.This is my c# code:
List<Panel> panels = new List<Panel>();
private void Panel()
{
var x = 0;
for (int i = 1; i < 5; i++)
{
x += 60;
var panel1 = new Panel() { Size = new Size(60, 140), Location = new Point(x, 100), BorderStyle = BorderStyle.FixedSingle };
panel1.Name = "pan" + i;
Label lbl = new Label();
lbl.Name = "lbl" + i;
lbl.Text = i.ToString();
lbl.Location = new Point(10, 20);
panel1.Controls.Add(lbl);
Button button = new Button();
button.Location = new Point(10, 90);
button.Size = new Size(40, 40);
button.Text = "Click";
panel1.Controls.Add(button);
panels.Add(panel1);
Controls.Add(panel1);
}
}
private void button1_Click(object sender, EventArgs e)
{
foreach (var p in panels)
{
}
}
Output:
But i want, When i Click button1 it will change Label text of zero index panels(I have pointed it using red mark).
Can anyone help me...
Ok, so you've got a button and a label within a panel. When you click a button of a panel, you wanna do something to the label in the same panel, right ?
So
private void BtnClick(object sender, EventArgs e) {
var button = (Button)sender;//you've got the button clicked
var panel = button.Parent;//you've got the panel.
//var label = panel.Controls.OfType<Label>().FirstOrDefault();//but don't think you get this in c# 3.0
var label = GetFirstLabel(panel);
if (label != null)
label.Text = "something";
}
private Label GetFirstLabel(Control parent) {
foreach (var control in parent.Controls) {
if (control is Label) return control as Label;
}
return null;
}
Usage
When you add your buttons, you can now do
Button button = new Button();
button.Location = new Point(10, 90);
button.Size = new Size(40, 40);
button.Text = "Click";
button.Click += BtnClick;
And this will work on all panels.
If you don't store reference to that Label then you can find it in controls of the first Panel by type for example:
panels[0].Controls.OfType<Label>().First().Text = "New Text";
or by name
panels[0].Controls.OfType<Label>().Single(l => l.Name == "lbl1").Text = "New Text";
you can do this with a simple method:
private void button1_Click(object sender, EventArgs e)
{
Label l = panels[0].Controls.Find("lbl1", false).FirstOrDefault() as Label;
l.Text = "TEXT";
}
I want to expand a Wrap Panel only in width also the Wrap Panel shall not draw over another Stack Panel that already exists. The Problem is probably with the standard configuration of Buttons which i added to the wrap panel also my lack of knowledge about auto sizing, so content or guides to this topic would be appreciated. The Button i add to wrap panel shall add text boxes to it, but how i said just in the width.
Edit.: is there a way to add a visual studio projekt to a post/comment?
{
/// <summary>
/// Interaktionslogik für MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
stackPanel1.Width = Double.NaN;
stackPanel1.Height = Double.NaN;
stackPanel2.Width = Double.NaN;
stackPanel2.Height = Double.NaN;
AddWrapPanelMaster();
}
Button AddButtonSlave(Button but)
{
but.Click += new RoutedEventHandler(this.buttClickSlave);
return (but);
}
Button AddButtonMaster(Button but)
{
but.Click += new RoutedEventHandler(this.buttClickMaster);
return (but);
}
void buttClickMaster(Object sender, EventArgs e)
{
TextBox txtB1 = new TextBox();
txtB1.Text = "Text";
txtB1.Width = 75;
txtB1.Height = 75;
Button s = (Button)sender;
WrapPanel wp = (WrapPanel)s.Parent;
wp.Children.Add(txtB1);
}
void buttClickSlave(Object sender, EventArgs e)
{
Button s = (Button)sender;
if (s.Background != Brushes.Blue && s.Background != Brushes.Red && s.Background != Brushes.Green)
s.Background = Brushes.Red;
else
if (s.Background == Brushes.Green)
s.Background = Brushes.Red;
else
if (s.Background == Brushes.Blue)
s.Background = Brushes.Green;
else
if (s.Background == Brushes.Red)
s.Background = Brushes.Blue;
}
void AddTextBox(Button sender) {
TextBox txtB1 = new TextBox();
txtB1.Text = "Text";
txtB1.Width = 75;
txtB1.Height = 75;
WrapPanel s = (WrapPanel)sender.Parent;
s.Children.Add(txtB1);
// Add the buttons to the parent WrapPanel using the Children.Add method.
}
void AddWrapPanelSlave() {
WrapPanel myWrapPanel = new WrapPanel();
myWrapPanel.Background = System.Windows.Media.Brushes.Azure;
myWrapPanel.Orientation = Orientation.Horizontal;
myWrapPanel.Width = 200;
myWrapPanel.HorizontalAlignment = HorizontalAlignment.Left;
myWrapPanel.VerticalAlignment = VerticalAlignment.Top;
// Define 3 button elements. The last three buttons are sized at width
// of 75, so the forth button wraps to the next line.
Button btn1 = new Button();
btn1 = AddButtonSlave(btn1);
btn1.Content = "Button 1";
btn1.Width = 75;
Button btn2 = new Button();
btn2.Content = "Button 2";
btn2.Width = 75;
// Add the buttons to the parent WrapPanel using the Children.Add method.
myWrapPanel.Children.Add(btn1);
myWrapPanel.Children.Add(btn2);
this.stackPanel1.Children.Add(myWrapPanel);
}
void AddWrapPanelMaster()
{
WrapPanel myWrapPanel = new WrapPanel();
myWrapPanel.Background = System.Windows.Media.Brushes.Azure;
myWrapPanel.Orientation = Orientation.Horizontal;
myWrapPanel.Width = 200;
myWrapPanel.HorizontalAlignment = HorizontalAlignment.Left;
myWrapPanel.VerticalAlignment = VerticalAlignment.Top;
// Define 3 button elements. The last three buttons are sized at width
// of 75, so the forth button wraps to the next line.
TextBox txtB1 = new TextBox();
txtB1.Text = "Text";
txtB1.Width = 75;
txtB1.Height = 75;
Button btn1 = new Button();
btn1 = AddButtonMaster(btn1);
btn1.Content = "Add";
btn1.Width = 75;
// Add the buttons to the parent WrapPanel using the Children.Add method.
myWrapPanel.Children.Add(txtB1);
myWrapPanel.Children.Add(btn1);
this.stackPanel2.Children.Add(myWrapPanel);
}
private void button1_Click(object sender, RoutedEventArgs e)
{
AddWrapPanelSlave();
this.Show();
}
}
}
Here I am doing a project where questions are presented in images. When the project loads, "start exam" button will be present in the screen. After pressing the button, it should create a picturebox, a textbox and a button for each image from specified path. Then users has to enter the answer in a textbox which is created dynamically. After the dynamic submit button is clicked for every image, the textbox values have to be stored in the listbox. I don't know how get the values from textbox. Can anyone help me out from this?
Here is my code:
PictureBox[] pics = new PictureBox[100];
TextBox[] txts = new TextBox[100];
Button[] butns = new Button[100];
FlowLayoutPanel[] flws = new FlowLayoutPanel[100];
private void button1_Click( Object sender , EventArgs e)
{
for (int i = 0; i < listBox1.Items.Count; i++)
{
flws[i] = new FlowLayoutPanel();
flws[i].Name = "flw" + i;
flws[i].Location = new Point(3,brh);
flws[i].Size = new Size(317,122);
flws[i].BackColor = Color.DarkCyan;
flws[i].BorderStyle = BorderStyle.Fixed3D;
pics[i] = new PictureBox();
pics[i].Location = new Point(953, 95 + brh);
pics[i].Name = "pic" + i;
pics[i].Size = new Size(300, 75);
pics[i].ImageLocation = "C:/" + listBox1.Items[i];
flws[i].Controls.Add(pics[i]);
txts[i] = new TextBox();
txts[i].Name = "txt" + i;
txts[i].Location = new Point(953, 186 + brh);
flws[i].Controls.Add(txts[i]);
butns[i] = new Button();
butns[i].Click += new EventHandler(butns_Click);
butns[i].Text = "submit";
butns[i].Name = "but" + i;
butns[i].Location = new Point(1100, 186 + brh);
flws[i].Controls.Add(butns[i]);
flowLayoutPanel1.Controls.Add(flws[i]);
brh += 130;
}
}
private void butns_Click(object sender, EventArgs e)
{
Button butns = sender as Button;
TextBox txts = sender as TextBox;
listBox2.Items.Add("text values " + txts.Text.ToString());
}
I would create a usercontrol to combine the controls.
Search for "custom usercontrol c#"
Regards.
Try this...
private void butns_Click(object sender, EventArgs e)
{
Button butns = sender as Button;
string btnName = butns.Name;
string Id = btnName.Substring(3);
string txtName = "txt" + Id;
listBox2.Items.Add("text values " + GetValue(txtName));
}
private string GetValue(string name)
{
TextBox txt = new TextBox();
txt.Name = name;
foreach (Control ctl in this.Controls)
{
if (ctl is FlowLayoutPanel)
{
foreach (Control i in ctl.Controls)
{
if (((TextBox)i).Name == txt.Name)
{
txt = (TextBox)i;
return txt.Text;
}
}
}
}
return txt.Text;
}
I want to create 10 buttons on my form when I click on button1. No error with this code below but it doesnt work either.
private void button1_Click(object sender, EventArgs e)
{
List<Button> buttons = new List<Button>();
for (int i = 0; i < buttons.Capacity; i++)
{
this.Controls.Add(buttons[i]);
}
}
You aren't creating any buttons, you just have an empty list.
You can forget the list and just create the buttons in the loop.
private void button1_Click(object sender, EventArgs e)
{
int top = 50;
int left = 100;
for (int i = 0; i < 10; i++)
{
Button button = new Button();
button.Left = left;
button.Top = top;
this.Controls.Add(button);
top += button.Height + 2;
}
}
It doesn't work because the list is empty. Try this:
private void button1_Click(object sender, EventArgs e)
{
List<Button> buttons = new List<Button>();
for (int i = 0; i < 10; i++)
{
Button newButton = new Button();
buttons.Add(newButton);
this.Controls.Add(newButton);
}
}
You could do something like this:
Point newLoc = new Point(5,5); // Set whatever you want for initial location
for(int i=0; i < 10; ++i)
{
Button b = new Button();
b.Size = new Size(10, 50);
b.Location = newLoc;
newLoc.Offset(0, b.Height + 5);
Controls.Add(b);
}
If you want them to layout in any sort of reasonable fashion it would be better to add them to one of the layout panels (i.e. FlowLayoutPanel) or to align them yourself.
Two problems- List is empty. You need to add some buttons to the list first. Second problem: You can't add buttons to "this". "This" is not referencing what you think, I think. Change this to reference a Panel for instance.
//Assume you have on your .aspx page:
<asp:Panel ID="Panel_Controls" runat="server"></asp:Panel>
private void button1_Click(object sender, EventArgs e)
{
List<Button> buttons = new List<Button>();
for (int i = 0; i < buttons.Capacity; i++)
{
Panel_Controls.Controls.Add(buttons[i]);
}
}
use button array like this.it will create 3 dynamic buttons bcoz h variable has value of 3
private void button1_Click(object sender, EventArgs e)
{
int h =3;
Button[] buttonArray = new Button[8];
for (int i = 0; i <= h-1; i++)
{
buttonArray[i] = new Button();
buttonArray[i].Size = new Size(20, 43);
buttonArray[i].Name= ""+i+"";
buttonArray[i].Click += button_Click;//function
buttonArray[i].Location = new Point(40, 20 + (i * 20));
panel1.Controls.Add(buttonArray[i]);
} }
I had the same doubt and came up with the following contribution:
int height = this.Size.Height;
int width = this.Size.Width;
int widthOffset = 10;
int heightOffset = 10;
int btnWidth = 100; // Button Widht
int btnHeight = 40; // Button Height
for (int i = 0; i < 50; ++i)
{
if ((widthOffset + btnWidth) >= width)
{
widthOffset = 10;
heightOffset = heightOffset + btnHeight
var button = new Button();
button.Size = new Size(btnWidth, btnHeight);
button.Name = "" + i + "";
button.Text = "" + i + "";
//button.Click += button_Click; // Button Click Event
button.Location = new Point(widthOffset, heightOffset);
Controls.Add(button);
widthOffset = widthOffset + (btnWidth);
}
else
{
var button = new Button();
button.Size = new Size(btnWidth, btnHeight);
button.Name = "" + i + "";
button.Text = "" + i + "";
//button.Click += button_Click; // Button Click Event
button.Location = new Point(widthOffset, heightOffset);
Controls.Add(button);
widthOffset = widthOffset + (btnWidth);
}
}
Expected Behaviour:
This will generate the buttons dinamically and using the current window size, "break a line" when the button exceeds the right margin of your window.
First, you aren't actually creating 10 buttons. Second, you need to set the location of each button, or they will appear on top of each other. This will do the trick:
for (int i = 0; i < 10; ++i)
{
var button = new Button();
button.Location = new Point(button.Width * i + 4, 0);
Controls.Add(button);
}
You can't add a Button to an empty list without creating a new instance of that Button.
You are missing the
Button newButton = new Button();
in your code plus get rid of the .Capacity