So i've got a groupBox with a picture 1 inside of it. So i need to add smaller picture 2 over the picture 1, but picture 2's background mustn't overlap picture 1.
I've tried this approach:
InitializeComponent();
groupBox.Controls.Add(pictureBox2);
pictureBox2.Location = new Point(0, 0);
pictureBox2.BackColor = Color.Transparent;
and this
InitializeComponent();
pictureBox1.Controls.Add(pictureBox2);
pictureBox2.Location = new Point(0, 0);
pictureBox2.BackColor = Color.Transparent;
but neither work.
Thanks in advance.
You need to set the parent control of the picture box. The transparent background that is displayed is that of the parent control.
InitializeComponent();
groupBox.Controls.Add(pictureBox2);
pictureBox2.Parent = pictureBox1;
pictureBox2.Location = new Point(0, 0);
pictureBox2.BackColor = Color.Transparent;
In order to accomplish this try the following:
InitializeComponent();
pictureBox1.Controls.Add(pictureBox2);
pictureBox2.Location = new Point(0, 0);
pictureBox2.BackColor = Color.Transparent;
pictureBox1.SendToBack();
pictureBox2.BringToFront();
used .SendToBack() for the one on the back and .BringToFront() for the one on the front.
Related
I am writing the app, and a part of it is open textbox. When the textbox is opening I want to dark background.
I have looked the solution and found it here:
Creating a dark background when a new form appears
But, it does not work for me correctly.
Here is my code:
private void App_Load(object sender, EventArgs e)
{
this.Text = "TestApp";
this.Size = new Size(350, 250);
this.BackColor = Color.DarkGray;
this.Location = new Point(50, 50);
this.MaximizeBox = false;
TextBox.BackColor = Color.WhiteSmoke;
TextBox.Multiline = true;
TextBox.Size = new Size(200, 90);
Button.Text = "Search";
Bitmap bmp = new Bitmap(this.ClientRectangle.Width, this.ClientRectangle.Height);
using (Graphics G = Graphics.FromImage(bmp))
{
G.CompositingMode = System.Drawing.Drawing2D.CompositingMode.SourceOver;
G.CopyFromScreen(this.PointToScreen(new Point(0, 0)), new Point(0, 0), this.ClientRectangle.Size);
double percent = 0.60;
Color darken = Color.FromArgb((int)(255 * percent), Color.Black);
using (Brush brsh = new SolidBrush(darken))
{
G.FillRectangle(brsh, this.ClientRectangle);
}
}
using (Panel p = new Panel())
{
p.Location = new Point(0, 0);
p.Size = this.ClientRectangle.Size;
p.BackgroundImage = bmp;
this.Controls.Add(p);
p.BringToFront();
// display your dialog somehow:
Form frm = new Form();
frm.StartPosition = FormStartPosition.Manual;
frm.ShowDialog(this);
}
}
I receive this:
Maybe, someone can point me out where is my mistake?
EDIT: I have found the solution, the question was not clear enough.
When the textbox is opening I want to dark background.
So you want the textBox to be dark, not the complete form?
Almost always when you think you have to do some painting yourself, think again. It is seldom necessary do to paint. Only do this, if you don't have any standard options.
Just set Property BackGround of the text box. Use visual studio designer to do this.
If you don't want to do this using the designer, do this in the constructor after InitializeComponent:
public MyForm()
{
InitializeComponent();
// text box dark background:
this.textBox1.BackColor = Color.Black;
}
If you want the complete form to be black, again use visual studio designer, or add:
InitializeComponent();
this.BackColor = Color.Black;
I have a picture which i want to display above another picture. so i use this answer How to make picturebox transparent?. But now when i add another picture (pictureBox3) it doesn't transpar with the first one (pictureBox2).
This is how it is look like - Do not pay attention to the third green picture. pictureBox1 is the black shape.
My code:
public Form1()
{
InitializeComponent();
Control[] controls = { pictureBox2, pictureBox3 };
pictureBox1.Controls.AddRange(controls);
pictureBox2.Location = new Point(95, 10);
pictureBox3.Location = new Point(150, 40);
pictureBox2.BackColor = Color.Transparent;
pictureBox3.BackColor = Color.Transparent;
}
How can i make it transaer with all the pictures?
Sometime ago I asked this question. I get an answer and it worked fine at time. But now, I'm trying to do the same but isn't working. I have a Form and a FlowLayoutPanel setted in the same way as the answer but it isn't working. Both Form has FLowLayoutPanel has set AutoSize to true and FlowDirection set to TopDown but the form is growing vertically without pushing down the progressBar control and label itself. Here's what's like my form after click on button a couple of times(the button's code is the same as in the accepted question in the link I have linked):
What am I missing?
Try this and see if it works!
public Form1()
{
InitializeComponent();
Size = new Size(400, 150);
AutoSize = true;
AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowOnly;
FlowLayoutPanel panel = new FlowLayoutPanel();
panel.Size = new Size(200, 150);
panel.MaximumSize = new System.Drawing.Size(panel.Width, int.MaxValue);
panel.FlowDirection = FlowDirection.TopDown;
panel.AutoSize = true;
panel.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowOnly;
Controls.Add(panel);
Label label = new Label();
label.Text = "Starting text!\n";
label.Padding = new System.Windows.Forms.Padding(0, 0, 0, 50);
label.AutoSize = true;
panel.Controls.Add(label);
ProgressBar progressBar = new ProgressBar();
progressBar.Location = new Point(0, 125);
progressBar.Size = new Size(190, 25);
panel.Controls.Add(progressBar);
Button button = new Button();
button.Location = new Point(275, 50);
button.Text = "Click me!";
button.Click += (object sender, EventArgs e) => { label.Text += "some more text, "; };
Controls.Add(button);
}
Ok, I've tested the solution suggested in the earlier post you made and it's working fine for me...
Test these things:
Make sure both the Label and the ProgressBar are located inside the FlowLayoutPanel
If you mean that it's growing horizontally <---->, then set the MaximumSize-Width of the FlowLayoutPanel to how wide it can be before switching to a new row (and from there growing vertically instead!)
Otherwise please provide more information so that I can help you from there.
I'm developing a WinForms application and can't figure out how to resolve an issue.
I need to show an image in a Form. Because the image can be arbitrarily large, I need scrollbars on the picturebox containing the image so the user can see it entirely.
Googling around I found out the best way to achieve this is to add the PictureBox as a Child Control of a Panel, and making the Panel autosizable and autoscrollable.
I did that programatically since using the designer I was unable to insert the picturebox as a child control of the panel.
The problem I'm now facing is that I can't seem to be able to center and scroll the picturebox at the same time.
If I put the anchor of the picturebox to top,left,bottom,right, the scrollbars are not shown and the image displayed is strange, if I put back the anchor to only top-left, the image is not centered.
Is there any way to do both at the same time?
Here's the code for my Panel and Picturebox:
this.panelCapturedImage = new System.Windows.Forms.Panel();
this.panelCapturedImage.SuspendLayout();
this.panelCapturedImage.AutoScroll = true;
this.panelCapturedImage.AutoSize = true;
this.panelCapturedImage.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink;
this.panelCapturedImage.Controls.Add(this.pictureBoxCapturedImage);
this.panelCapturedImage.Location = new System.Drawing.Point(0, 49);
this.panelCapturedImage.Name = "panelCapturedImage";
this.panelCapturedImage.Size = new System.Drawing.Size(3, 3);
this.panelCapturedImage.TabIndex = 4;
this.pictureBoxCapturedImage.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.pictureBoxCapturedImage.Location = new System.Drawing.Point(0, 0);
this.pictureBoxCapturedImage.Name = "pictureBoxCapturedImage";
this.pictureBoxCapturedImage.Size = new System.Drawing.Size(0, 0);
this.pictureBoxCapturedImage.SizeMode = System.Windows.Forms.PictureBoxSizeMode.CenterImage;
this.pictureBoxCapturedImage.TabIndex = 0;
this.pictureBoxCapturedImage.TabStop = false;
this.panelCapturedImage.Controls.Add(this.pictureBoxCapturedImage);
And here's where I set the image:
public Image CapturedImage
{
set
{
pictureBoxCapturedImage.Image = value;
pictureBoxCapturedImage.Size = value.Size;
}
}
For the PictureBox, set SizeMode = AutoSize, Anchor it Top, Left, and set its Location to 0, 0.
Set Panel.AutSize to False and Panel.AutoScroll to True.
When you set the PictureBox.Image property, it will auto-size to the size of the image. You can then use that size to set the panel's AutoScrollPosition property:
public Image CapturedImage
{
set
{
pictureBoxCapturedImage.Image = value;
panelCapturedImage.AutoScrollPosition =
new Point {
X = (pictureBoxCapturedImage.Width - panelCapturedImage.Width) / 2,
Y = (pictureBoxCapturedImage.Height - panelCapturedImage.Height) / 2
};
}
}
If the image is smaller then then panel's size, it will remain in the upper left corner. If you want it centered within the panel, you'll have to add logic to set its Location appropriately.
Based on earlier answers I was able to create this full example:
private void testShowPictureBox()
{
/* format form */
Form frmShowPic = new Form();
frmShowPic.Width = 234;
frmShowPic.Height = 332;
frmShowPic.MinimizeBox = false;
frmShowPic.MaximizeBox = false;
frmShowPic.ShowIcon = false;
frmShowPic.StartPosition = FormStartPosition.CenterScreen;
frmShowPic.Text = "Show Picture";
/* add panel */
Panel panPic = new Panel();
panPic.AutoSize = false;
panPic.AutoScroll = true;
panPic.Dock = DockStyle.Fill;
/* add picture box */
PictureBox pbPic = new PictureBox();
pbPic.SizeMode = PictureBoxSizeMode.AutoSize;
pbPic.Location = new Point(0, 0);
panPic.Controls.Add(pbPic);
frmShowPic.Controls.Add(panPic);
/* define image */
pbPic.ImageLocation = #"c:\temp\pic.png";
frmShowPic.ShowDialog();
}
The picturebox has to be set to autosize. anchored at the center (or a border).
You could manage all of this in the designer, don't undertand your problem with that.
The panel has to be set to autoscroll to true.
How can I place a form at the bottom-right of the screen when it loads using C#?
try something on the lines of
Rectangle workingArea = Screen.GetWorkingArea(this);
this.Location = new Point(workingArea.Right - Size.Width,
workingArea.Bottom - Size.Height);
Hope it works well for you.
Form2 a = new Form2();
a.StartPosition = FormStartPosition.Manual;
a.Location = new Point(Screen.PrimaryScreen.WorkingArea.Width - a.Width,
Screen.PrimaryScreen.WorkingArea.Height - a.Height);
This worked for me; i just put this code listed below after my InitializeComponent();
public FormProgress()
{
this.StartPosition = FormStartPosition.Manual;
this.Location = new Point(Screen.PrimaryScreen.WorkingArea.Width - this.Width, Screen.PrimaryScreen.WorkingArea.Height - this.Height);
}
It's easy to try;
//Get screen resolution
Rectangle res = Screen.PrimaryScreen.Bounds;
// Calculate location (etc. 1366 Width - form size...)
this.Location = new Point(res.Width - Size.Width, res.Height - Size.Height);
In you form constructor put the following code:
StartPosition = FormStartPosition.Manual;
This will set the start position of the form to whatever you set as the value for the form's location (you can set this in the form designer).