Basic query related to C# 4.0

Question

1.00/5 (1 vote)

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Hello everybody,

I am new to this forum, and new to C# programming as well.

Right now i am working on a project, and facing some problem.

The default size of my windows form is 800x600, and it is unlocked to maximize. Now i have placed a label in the form, and i want to be at the center, and even if user maximize the window, the label must be at the center with respect to the new size.

Please help me with this.

Thanks and Regards
CA50

PS: more to come :)

Posted 9-Mar-12 0:03am

CA50

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5 solutions

Solution 1

use TableLayoutPanel[^] and position your controls within the cells of the table, which will care on resizing

use Anchor/Docking property of controls for correct relative alignment.

Posted 9-Mar-12 0:08am

Prasad_Kulkarni

Comments

CA50 9-Mar-12 6:15am

@pashad, can you be please post the syntex or code

lukeer 9-Mar-12 6:40am

There's no syntax for that.
You do it via clicking, dragging, entering values in the Visual Studio Designer.

Prasad_Kulkarni 9-Mar-12 6:28am

It is just a simple property of control (label or button) which you have to set from property window, no specific code is there for that.
Go to the link provided, & read 7th property you will get details.
If not then let me know.

Prasad_Kulkarni 9-Mar-12 6:30am

// Add a button to a form and set some of its common properties.
private void AddMyButton()
{
// Create a button and add it to the form.
Button button1 = new Button();

// Anchor the button to the bottom right corner of the form
button1.Anchor = (AnchorStyles.Bottom | AnchorStyles.Right);

// Assign a background image.
button1.BackgroundImage = imageList1.Images[0];

// Specify the layout style of the background image. Tile is the default.
button1.BackgroundImageLayout = ImageLayout.Center;

// Make the button the same size as the image.
button1.Size = button1.BackgroundImage.Size;

// Set the button's TabIndex and TabStop properties.
button1.TabIndex = 1;
button1.TabStop = true;

// Add a delegate to handle the Click event.
button1.Click += new System.EventHandler(this.button1_Click);

// Add the button to the form.
this.Controls.Add(button1);
}

CA50 9-Mar-12 6:32am

Got that, i have tried the anchor property, but when i resize the windows, the label, remains intact and doesn't change :(

I have also used tab control, and the anchor property works with that perfectly.

Prasad_Kulkarni 9-Mar-12 6:56am

It will work for all the controls. Re-check it once weather property is set or not.
And if your question is solved then hit green button to accept solution.

CA50 9-Mar-12 7:16am

mate, i am trying to add a label inside a tab-control, so how to do that. you code is for button creation.

Solution 2

Use Html Center tag to place the label center

For ex:

<center>
<asp:label id="Label1" runat="server" text="Hello" xmlns:asp="#unknown">
</asp:label></center>

Posted 9-Mar-12 0:10am

nithibs

Comments

CA50 9-Mar-12 6:15am

@nithibs, since i am working in C#, will the html code work ??

lukeer 9-Mar-12 6:28am

Since you are working with Windows Forms, it won't.

CA50 9-Mar-12 6:35am

thanks, i thought so

Solution 5

If it's just for that one centered label,
1. Select it.
2. Go to the "Layout" button bar.
3. Select "Center horizontally" (or similar)
It's a symbol that looks like a horizontal track bar.
Now your label is centered.
4. Go to properties window
5. Change Anchor property to neither left nor right ("None" is Ok as well).
Now the label should stay in the center of its container.

Posted 9-Mar-12 0:45am

lukeer

Comments

CA50 9-Mar-12 6:52am

but it must change at runtime, when the windows is resized !!

lukeer 9-Mar-12 7:58am

Understood. That's just the effect the above should create.
What behaviour are you observing instead?

CA50 9-Mar-12 8:05am

nothing, at the designer window, the label positions itself at the center, but when i resize the window (at runtime), the label doesn't change its position

lukeer 11-Mar-12 10:56am

And what is the label's Anchor property set to?

CA50 11-Mar-12 10:59am

top, bottom

lukeer 12-Mar-12 4:01am

And its parent is the Form? Or is there another control in between?

CA50 12-Mar-12 4:25am

no idea about this parent concept, but as mentioned before, the label is placed inside a container - panel

lukeer 12-Mar-12 5:13am

Then, within this context, the Panel is Label's parent. And Form should be Panel's parent. (It's kind of hard not to mix this up with inheritance, since there are parents and children, too.)

Maybe the intermittent Panel doesn't resize with the Form. That would prevent any of its child controls from knowing of the Form's size change.

Try setting the Panel's Anchor property to Left _and_ Right.

Solution 4

This is the Common Problem faced with windows forms.For my project also i had faced the same problem. Started the development using the TableLayout. Then at final stage it was with above 100 TableLayout components. But it is not advised.

By Using the DataBindings Property of the control, we can solve it.
Create a Label object (objLabel)
Whenever the size of window changes calculate the percentage of change.
and update the label Width, Height, Location with the percentage of change.

Then clear the DataBindings of your label.

yourLabelCtrl.DataBindings.Clear();

And add the Databindings of the created label to your label.

yourLableCtrl.DataBindings.Add("Width", objLabel, "Width");
yourLableCtrl.DataBindings.Add("Height", objLabel, "Height");
yourLableCtrl.DataBindings.Add("Location", objLabel, "Location");

I had tested for all the Resolutions, it worked also.

Posted 9-Mar-12 0:26am

Vinay Swa

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CA50 · Accepted Answer · 2012-03-09T07:47:00

Solution 6

Thanks to all who have read this, i have found a solution for this problem, and it works for me perfectly :)

Solution:
1. Insert the label within the 'panel' container
2. Next change the anchor property of the panel
3. In case of any problem, dock the panel to TOP

Cheers :)

Posted 9-Mar-12 7:47am

CA50