how to increase the size of panel when text is greater than the size of the panel in c# in WinForms

Question

0.00/5 (No votes)

See more:

I have a case
When label is inside the panel, and some text is written inside it then label show the value up to panel size.
After using auto size property = true panel size can be increased acc. to Form size, width wise only.

My question is now that when text is entered inside panel(where panel width is fixed) and text is greater than the panel size then the next alphabet will automatically send to the next line (instead of hiding next characters behind panel) in panel. I mean height of the panel increased accordingly to the size of the text not width increased.

This is all in WINDOWS FORM.

Any logic or snippet is greatly appreciated

Any doubt in question then plz ask it

Posted 8-Aug-13 18:33pm

binadi007

Updated 28-Jan-21 1:32am

v2

Add a Solution

2 solutions

Solution 2

The Answer is very simple and easy

C#

 public Config_CardItem()
        {
            InitializeComponent();
lblProductName.AutoSize=true;
}
private void lblProductName_Resize(object sender, EventArgs e)
        {
            try
            {
                if (lblProductName.Height > pnl.Height)
                {
                   pnl.Height = lblProductName.Height;
                }
               
            }
            catch(Exception ex) {MessageBox.Show(ex.Message); }
        }

Posted 28-Jan-21 1:32am

Naeem Shah

Updated 28-Jan-21 1:49am

v2

Comments

CHill60 28-Jan-21 7:41am

Reason for my vote of 1 (apart from the fact the question was answered over 7 years ago)
- you have code "floating" in the middle of nowhere - where does

lblProductName.AutoSize=true;

actually belong?
- you have a try with an empty catch block - that is very bad practice
- you have an empty if-clause - the following means the same thing, is much neater and doesn't look as if something has been forgotten

if (lblProductName.Height > pnl.Height)
{
    pnl.Height = lblProductName.Height;
}

Naeem Shah 28-Jan-21 7:50am

updated my answer and thanks for your good sugesstion

CHill60 28-Jan-21 12:04pm

That is better. I have changed my vote upwards

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Maciej Los · Accepted Answer · 2013-08-08T21:01:00

I would suggest you to use SizeChanged event[^]. Inside this event check the with of Label control and add brake the line character in proper place of string. To measure the text width, you can use TextRenderer.MeasureText method[^].

Example code to read text, label and panel width:

C#

private void CmdAddText2Label_Click(object sender, EventArgs e)
{
    label1.Text += "Veeeeerrryyyyy Loooooonnnnngggggg Teeeexxxxxxtttttt!";
}

private void label1_SizeChanged(object sender, EventArgs e)
{
    Label lbl = (Label)sender;
    String s = lbl.Text;
    Font f = lbl.Font;
    //calculate the length of string
    Size txtSize = TextRenderer.MeasureText(s, f);
    MessageBox.Show("Width of: \r\n - Text: " + txtSize.Width.ToString() + "\r\n - Label: " + lbl.Width.ToString() + "\r\n - Panel: " + panel1.Width.ToString());
}

This part is for start. The rest belongs to you ;)

[EDIT]
OK, i'll show you how to achieve. It's quite simple....
1) create new project (Windows application).
2) drop on the form:
- 1 button (button1),
- 1 panel (panel1)
3) add new class (change the file name to: MultiLineLabel.cs); copy and paste below code

C#

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using System.Drawing;

namespace WindowsApplication1
{
    class MultiLineLabel : System.Windows.Forms.Label 
    {
        bool mline = false;

        public bool MultiLine
        {
            get {return mline;}
            set {mline = value;}
        }
        
        protected override void  OnResize(EventArgs e)
        {
            int tw = 0;
            int i = 0;
            String s = base.Text;
            String c = String.Empty;
            Font f = base.Font;
            Control p = base.Parent;
            //get the width of label
            int lw = base.Width;
            //get the with of parent control
            int cw = p.Width;
            StringBuilder sb = null;
            if(mline ==true )
            {
                if (lw>cw)
                {
                    while (tw < cw)
                    {
                        i += 1;  
                        c = s.Substring(0, i);
                        //calculate the length of string
                        Size txtSize = TextRenderer.MeasureText(c, f);
                        //get the width of text 
                        tw = txtSize.Width;
                    }
                    //decrease the length of text 
                    i -= 1;
                    //insert brakes
                    sb = new StringBuilder();
                    int j = 0;
                    while (j < s.Length) 
                    {
                        if (j + i > s.Length) i = s.Length - j;
                        c = s.Substring(j, i); //+ "/r/n";
                        sb.AppendLine (c);
                        j += i;
                    }
                    base.Text = sb.ToString();
                }
            }
            base.OnResize(e);
        }

    }
}

4) copy and paste below code to form class (form1.cs)

C#

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        MultiLineLabel ml = new MultiLineLabel();
        public Form1()
        {
            InitializeComponent();
            ml.Parent = this.panel1;
            ml.AutoSize = true;
            ml.MultiLine = true;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            const String s = "Veeeerrrryyyyy Loooooonnnngggggg TTTeeeeeeexxxxxxxtttttt";
            ml.Text += s;
        }

    }
}

5) run the application ;) Now your label has new functionality: multiline property and changes its size to the width not greater than parent control ;)

Note: the code is not optimized!
[/EDIT]