TableLayout Panel resize

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C#

I want to resize tablelayoutpanel control during runtime in c#?

How can I achieve this? .

Posted 24-Nov-11 16:38pm

Srini2286

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LanFanNinja 25-Nov-11 1:27am

Check my new solution (Solution 2) below

d.allen101 2-Jul-13 16:31pm

hey Srini2286, did you ever get that tableLayoutPanel working with the starting code that LanFanNinja provided? If you did can plz share? i'm dealing with the exact same problem. i need for the user of my app to be able to resize rows and columns of my tableLayoutPanel during runtime.

3 solutions

Solution 1

Using the Size propery i.e.

C#

tableLayoutPanel1.Size = new Size(100, 100);

Is this what you wanted?

Posted 24-Nov-11 16:57pm

LanFanNinja

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Srini2286 24-Nov-11 23:06pm

No. Actually I wanted to resize tablelayout during runtime.. That is,drag and drop the rows and columns at runmode according to user desire..

Need help for this...

LanFanNinja 25-Nov-11 1:40am

Check my solution 2

Solution 3

My answer is for using the mouse to resize only the columns of the tablelayoutpanel but can be easily updated to do the same for rows. I'd rather use a splitpanel for the rows of course, but still. In the code I cater for 4 columns but extending it to more or less is easy enough. The cursurToDefault event will be added to the mousemove-event of the container controls inside the tablelayoutpanel.

C#

private int beamMoving;
private void tableLayoutPanel1_MouseMove(object sender, MouseEventArgs e)
   {
       this.Cursor = Cursors.VSplit;
       if (e.Button == System.Windows.Forms.MouseButtons.Left)
       {
           int beam0 = (int)tableLayoutPanel1.ColumnStyles[0].Width;
           int beam1 = (int)tableLayoutPanel1.ColumnStyles[0].Width + (int)tableLayoutPanel1.ColumnStyles[1].Width;
           int beam2 = (int)tableLayoutPanel1.ColumnStyles[0].Width + (int)tableLayoutPanel1.ColumnStyles[1].Width + (int)tableLayoutPanel1.ColumnStyles[2].Width;

           switch (beamMoving)
           {
               case 0:
                   {
                       if (e.X > 0)
                       {
                           tableLayoutPanel1.ColumnStyles[0].Width = e.X;
                       }
                       break;
                   }
               case 1:
                   {
                       if (e.X - beam0 > 0)
                       {
                           tableLayoutPanel1.ColumnStyles[1].Width = e.X - beam0;
                       }
                       break;
                   }
               case 2:
                   {
                       if (e.X - beam1 > 0)
                       {
                           tableLayoutPanel1.ColumnStyles[2].Width = e.X - beam1;
                       }
                       break;
                   }
           }
       }
   }
   private void cursorToDefault(object sender, MouseEventArgs e)
   {
       this.Cursor = Cursors.Default;
   }

   private void tableLayoutPanel1_MouseDown(object sender, MouseEventArgs e)
   {
       int beam0 = (int)tableLayoutPanel1.ColumnStyles[0].Width;
       int beam1 = (int)tableLayoutPanel1.ColumnStyles[0].Width + (int)tableLayoutPanel1.ColumnStyles[1].Width;
       int beam2 = (int)tableLayoutPanel1.ColumnStyles[0].Width + (int)tableLayoutPanel1.ColumnStyles[1].Width + (int)tableLayoutPanel1.ColumnStyles[2].Width;
       if (e.X + 20 > beam0 && e.X - 20 < beam1)
       {
           beamMoving = 0;
       }
       if (e.X + 20 > beam1 && e.X - 20 < beam2)
       {
           beamMoving = 1;
       }
       if (e.X + 20 > beam2 && e.X - 20 < tableLayoutPanel1.Width)
       {
           beamMoving = 2;
       }
   }

Posted 1-Jul-15 23:24pm

Stanley Gillmer

Updated 1-Jul-15 23:26pm

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LanFanNinja · Accepted Answer · 2011-11-24T19:27:00

Well its not going to be easy for you to do but I come up with this code to maybe give you an idea of something you could do as far as resizing goes anyway.

C#

public partial class Form1 : Form
{
    bool resizing = false;
    TableLayoutRowStyleCollection rowStyles;
    TableLayoutColumnStyleCollection columnStyles;

    public Form1()
    {
        InitializeComponent();
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        rowStyles = tableLayoutPanel1.RowStyles;
        columnStyles = tableLayoutPanel1.ColumnStyles;
    }

    private void tableLayoutPanel1_MouseDown(object sender, MouseEventArgs e)
    {
        if (e.Button == System.Windows.Forms.MouseButtons.Left)
        {
            resizing = true;
        }
    }

    private void tableLayoutPanel1_MouseMove(object sender, MouseEventArgs e)
    {
        if (resizing)
        {
            columnStyles[0].SizeType = SizeType.Absolute;
            rowStyles[0].SizeType = SizeType.Absolute;
            rowStyles[0].Height = e.Y;
            columnStyles[0].Width = e.X;
        }
    }

    private void tableLayoutPanel1_MouseUp(object sender, MouseEventArgs e)
    {
        if (e.Button == System.Windows.Forms.MouseButtons.Left)
        {
            resizing = false;
        }
    }
}

EDIT: I also set the CellBorderStyle propery to Single so that I could see the lines

C#

tableLayoutPanel1.CellBorderStyle = TableLayoutPanelCellBorderStyle.Single;