There's some spacing between the Buttons I add to my TableLayoutPanel. I removed the border in the Button and set the Margin and Padding to 0 in the Panel. But I continue getting that spacing.
tableLayoutPanel.RowCount is set to 8 and the Rows collection I've added 8 rows with Size Type Absolute.
Am I missing something? Here's the code:
private void FillSelectLayout()
{
tableLayoutPanelSelect.Controls.Clear();
tableLayoutPanelSelect.RowStyles.Clear();
tableLayoutPanelSelect.RowCount = 8;
for (int i = 0; i < 8; i++)
{
Button buttonSelector = new Button();
buttonSelector.Height = 64;
buttonSelector.Width = 100;
buttonSelector.FlatStyle = FlatStyle.Flat;
buttonSelector.FlatAppearance.BorderSize = 0;
buttonSelector.BackColor = Color.Yellow;
tableLayoutPanelSelect.Controls.Add(buttonSelector, 0, i);
}
}
Here's how it's displayed:
To remove the space between buttons in cells, it's enough to set dock property of them to fill and then remove default margins of buttons:
var b = new Button();
b.Dock = DockStyle.Fill;
b.Margin = new Padding(0);
Note:
Usually it's better to set Dock property of controls which you host in cells to Fill. This way your controls will follow TableLayouPanel sizing rules which you set for columns and rows.
TableLayoutPanel use Margin property of control to set the location of control in cell. So If you don'n want to set Dock and you prefer to set the Size manually, it's enough to set the Margin only.
I .. set the Margin and Padding to 0 in the Panel.
Why didn't you remove the Margin in the Buttons instead:
buttonSelector.Margin = new Padding(0);
MSDN:
The Margin property defines the space around the control that keeps
other controls a specified distance from the control's borders.
I faced the same problem while using different control in TableLayoutPanel
You can do this
Go to Design View
Click on the properties
GoTo Columns, When you click text box besides Columns, a button (...) appears on extreme right, click it
A pop up window appears, Select AutoSize (Instead of Absolute or Percentage).
In the same window in Show: select Rows and again select Autosize.
Click okay and you are done.
Related
I'm working on a Excel add-in project that will require me to procedurally generate some controls in a windows task pane. While experimenting, I ran into an issue where this button keeps having its width set to 0, and I don't understand why.
If I don't use any anchoring or docking then the button shows up, but at its default width and height. I am trying to get it to span the width of the layout panel, and it was my understanding you could accomplish this by using AnchorStyles Left and Right, or with DockStyle Fill. However, as soon as I add these properties the width gets set to 0 (as seen from the debugger). I checked the width of the root control (this) and the button's parent control FlowLayoutPanel, and they are both the default non-zero size.
What am I doing wrong?
public MyUserControl()
{
FlowPanel = new FlowLayoutPanel
{
Name = "My Flow Panel",
TabIndex = 0,
FlowDirection = FlowDirection.TopDown,
};
Button button1 = new Button
{
Name = "button1",
Text = this.Width.ToString(),
FlatStyle = FlatStyle.Flat,
Padding = new Padding
{
Left = 10
},
Parent = FlowPanel,
Anchor = (AnchorStyles.Left | AnchorStyles.Right)
};
FlowPanel.Controls.Add(button1);
this.Controls.Add(FlowPanel);
}
You can't anchor like that in FlowLayoutPanels. Instead, subscribe to the SizeChanged event and modify the button width there. You'll probably also need to set the width when you create the button, so below I've just created a method you can call from both places.
FlowPanel.SizeChanged += new System.EventHandler(this.FlowPanel_SizeChanged);
private void FlowPanel_SizeChanged(object sender, EventArgs e)
{
SetButtonWidth();
}
void SetButtonWidth()
{
button1.Width = FlowPanel.Width - FlowPanel.Padding.Horizontal - button1.Margin.Horizontal;
}
I am working on a very simple table layout application for getting started with learning C#. I am doing everything programmatic ally ( not through design editor)
I am trying to add scrolling onto the application. It seems to work fine, but it does not seem to start at the top of the horizontal range by default. I tried adding things like Max/min size, autoscroll margins etc., but nothing seems to have the desired effect. I am sure there is something simple I am missing.
Here is my current code as it relates to the problem.
layout = new TableLayoutPanel();
layout.Height = 1075;
layout.Width = 704;
layout.Name = "masterLayout";
layout.Dock = DockStyle.Fill;
layout.AutoScroll = true;
int i = 0;
foreach (Race r in ELECTION_DATA.races.OrderBy(o => o.race_id)) {
layout.Controls.Add(new Label { AutoSize = true, Text =r.race_id, Name=r.race_id, Width=300}, i, 0 );
layout.Controls.Add(new TreeView { AutoSize = true, Text = r.race_id, Name = r.race_id, Height = 1000, Width = 300 }, i,1);
i += 1;
}
Controls.Add(layout);
Here is an image, The Label Control Is not visible because the scroll is offset to the beginning of the tree view.
How can I ensure the scroll always starts at the very top?
The ScrollLayoutPanel has a method called ScrollControlIntoView that will move a specific control inside the panel into view. If you just scroll your first control into the view after you are done filling your panels, then that should ensure that the top is visible. In other words:
// do your loop first...
foreach (...)
{
layout.Controls.Add(...);
}
// then if any controls exist, scroll the first control into view
if (layout.Controls.Count > 0)
{
layout.ScrollControlIntoView(layout.Controls[0]);
}
I have a TableLayoutPanel that has a dynamic amount of columns and rows determined by the user. I want the buttons inside to be square and the same size, but whenever I use a loop to set the column/rows styles, they never turn out to be the size I want them to be.
How can I get the column/row styles to set the appropriate widths and height os the container elements?
Here is the loop method of the code that handles setting the width size of the table (I use a similar method for rows)
void FormatTableWidth(ref TableLayoutPanel container)
{
TableLayoutColumnStyleCollection columnStyles = container.ColumnStyles;
foreach (ColumnStyle style in columnStyles)
{
style.SizeType = SizeType.Absolute;
style.Width = 60;
}
}
You can do it like....
public void AddButtontControls()
{
tblPanel.SuspendLayout();
tblPanel.Controls.Clear();
tblPanel.GrowStyle = TableLayoutPanelGrowStyle.FixedSize;//.AddColumns;
tblPanel.ColumnStyles.Clear();
for (int i = 0; i < tblPanel.ColumnCount; i++)
{
ColumnStyle cs = new ColumnStyle(SizeType.Percent, 100 / tblPanel.ColumnCount);
tblPanel.ColumnStyles.Add(cs);
//Add Button
Button a = new Button();
a.Text = "Button " + i + 1;
tblPanel.Controls.Add(a);
}
tblPanel.ResumeLayout();
}
Sorry to tell you, but you don't use the right control.
You definitely must use FlowLayoutPanel control, and you can add as many controls you want in it, you can tell which direction will fill the control, if it wrap content or not, and many others.
And the most important - It Will Not Flickering like TableLayoutPanel does :)
I have a label inside a panel. When the text exceeds, the label text should wrap. For doing that I have set mylabel's AutoSize = false and MaximumSize = 100,0.
Now since the text is being wrapped, vertical scrollbar should appear on panel. But that's not happening, please specify what I am missing here.
Is it possible this way or should I explicitly add a vertical scrollbar inside the panel?
1) You need to put the label inside the panel
2) AutoSize for label should be TRUE
3) AutoSize for panel should be FALSE
4) AutoScroll for panel should be True
that is it!
You should be setting AutoSize to true to automatically wrap. For the scrollbars check that you set panel.VerticalScroll.Visible = true;
Did you have the properties Scrollable=true or AutoScroll?
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.panel.scrollbars.aspx
Try this:
ScrollBar vScrollBar1 = new VScrollBar();
vScrollBar1.Dock = DockStyle.Right;
vScrollBar1.Scroll += (sender, e) => { panel1.VerticalScroll.Value = vScrollBar1.Value; };
panel1.Controls.Add(vScrollBar1);
It's long time ago about this question.
Solution :
Panel1.AutoScroll = True
Label1.AutoSize = True
Label1.MaximumSize = New Size(Panel1.ClientRectangle.Width - 18, 0)
Impotrant thing is to define MaximumSize for Label width. Height leave 0 (zero). Height will grow with label content.
In this case, maximum width of label would be width of panel - 18px for scroller.
How do I add padding, or some space between the textboxes when using dockstyle.top property?
for(int i =0; i< 10; i++) {
textboxes[i] = new TextBox();
textboxes[i].Dock = DockStyle.Top;
mypanel.Controls.Add(textboxes[i]);
}
The code above puts textboxes right beneath each other. Can't figure this out without using mass panels or fixed positioning. How to do the following?
1) I would like to add around 10-20pixels between boxes.
2) How to change size (height,width) of the textboxes, since when using dockstyle.top it ignores the size commands ?
With DockStype.Top you can't change the width of your TextBoxes, cause they are docked. You can only change the height. But to change the height of a TextBox you have to set the Multiline = true beforehand.
To get the space between the different boxes you have to put each TextBox within a panel, set the TextBox.Dock = Fill, the Panel.Dock = Top and the Panel.Padding = 10. Now you have some space between each TextBox.
Sample Code
for (int i = 0; i < 10; i++)
{
var panelTextBox = CreateBorderedTextBox();
this.Controls.Add(panelTextBox);
}
private Panel CreateBorderedTextBox()
{
var panel = CreatePanel();
var textBox = CreateTextBox();
panel.Controls.Add(textBox);
return panel;
}
private Panel CreatePanel()
{
var panel = new Panel();
panel.Dock = DockStyle.Top;
panel.Padding = new Padding(5);
return panel;
}
private TextBox CreateTextBox()
{
var textBox = new TextBox();
textBox.Multiline = true;
textBox.Dock = DockStyle.Fill;
return textBox;
}
What i forgot, you can also give a try to the FlowLayoutPanel. Just remove the DockStyle.Top from the panels and put them into the FlowLayoutPanel. Also you should set the FlowDirection to TopDown. Maybe this can also help you to solve your problem, too.
Another work around that suits smaller layouts is to just add a Label control afterwards also docked to the Top, which is not AutoSized, Text=" ", Height=your padding. This is quite useful for the odd bit of padding when using the designer.
I know where you're coming from, this is especially frustrating after returning to WinForms from WPF.
I would suggest using a TableLayoutPanel, in which each TextBox would get its own cell, and adjusting the properties of the cells. This should solve both your padding and size problems.
Another alternative would be to use some more complex layout controls, such as the DevExpress ones (not free).