How to add TextBoxes in Panel without spaces?

Question

1.00/5 (1 vote)

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Hi All,
I wants to add TextBoxes in Panel in following way

C#

int startPos = 0;
        int srno = 1;
        private void button2_Click(object sender, EventArgs e)
        {
            TextBox tb = new TextBox();
            tb.Location = new Point(0, startPos);
            tb.Text = srno.ToString(); srno += 1;
            panel1.Controls.Add(tb);
            startPos += tb.Height;
        }

panel1.AutoScroll=true;

first 10 TextBoxes added fine with no problem, but after that some space lefts between textboxes. I don't Know why this happens?
Please Help me.

Posted 1-Oct-15 0:27am

Shruti91

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Comments

Ralf Meier 1-Oct-15 6:46am

I tested your code-snipped.
It works like it should - so : where is the difference between you and me ?
Is there anything you application does further ?

Shruti91 1-Oct-15 6:50am

try to add more than 10 textboxes it will not in continus row

Ralf Meier 1-Oct-15 6:52am

I added 30 textboxes, got the scroll-sliders but all textboxes are positioned well ...

Shruti91 1-Oct-15 7:05am

use panel1 with size 150 X 150

Ralf Meier 1-Oct-15 10:00am

That makes no difference ... :(

Which Framework do you use ?
Forms or WPF ?

Shruti91 2-Oct-15 2:32am

framework 4, windows forms application
check solution 2. It works for me.

3 solutions

Solution 1

Why are you using a panel and a bunch of textboxes at all?
Try using a DataGridView instead, and turn the row and column headers off - you will get a much simpler system in the long run.

Posted 1-Oct-15 0:39am

OriginalGriff

Comments

Shruti91 1-Oct-15 6:44am

You are correct but, in my case I have UserControl instead of TextBox in above code and that User control contains 2/3 rows of textboxes.

Solution 3

Try this:

C#

int srno = 1;

private void button2_Click(object sender, EventArgs e)
{
    TextBox tb = new TextBox();
    tb.BorderStyle = BorderStyle.None;
    tb.Margin = new Padding(0);
    tb.Padding = new Padding(0);
    tb.Dock = DockStyle.Top;
    tb.Text = srno.ToString();

    tb.BackColor = (srno % 2 == 0) ? Color.LightBlue : Color.AliceBlue;
    
    srno ++;
    
    panel1.Controls.Add(tb);
    tb.BringToFront();
}

Adjust the different parameters above to taste.

Posted 1-Oct-15 11:12am

BillWoodruff

Updated 1-Oct-15 12:20pm

v2

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VR Karthikeyan · Accepted Answer · 2015-10-01T01:04:00

Solution 2

Hi,

I have tried your code, it happens as you said. But I can't find the reason for your problem.

But I have an alternate solution for you, In this case, you can use FlowLayoutPanel. It solves your problem. And set the value of following properties of FlowLayoutPanel.

VB

AutoScroll = True
FlowDirection = TopDown
WrapContents = False

Posted 1-Oct-15 1:04am

VR Karthikeyan

Comments

Shruti91 1-Oct-15 7:35am

Thanks for solution.