Solved

Need code for Combobox SelectedIndexChanged-event

Posted on 2014-01-23
2
330 Views
Last Modified: 2014-01-23
Dear Experts,

I want to try to make a Character Map just like Windows has. I have a combobox on my
form to get the System Fonts and I have used a DataGridView to display the characters.
Now only thing I need is to program the SelectedIndexChanged-event to display the
characters in DataGridView which belongs to the fontname when the user selects a font in the combobox. I have searched and found only vb-code that I don't understand. Who can help me?

        private const int NoOfCols = 16;
        private const int ColWidth = 24;

        public CharMap()
        {
            InitializeComponent();
        }

        private void CharMap_Load(object sender, EventArgs e)
        {
            //Set txtCopyChar as focus
            this.ActiveControl = txtCopyChar;

            //Get a list of font names into combo box.
            InstalledFontCollection fc = new InstalledFontCollection();
            foreach (FontFamily Item in fc.Families)
            {
                cboFontName.Items.Add(Item.Name);
            }
            cboFontName.SelectedIndex = 0;

            //Setup datagrid
            SetupDataGrid();
            //Select the first item
            CharGrid[1, 0].Selected = true;
        }

        private void SetupDataGrid()
        {
            //Number of columns to create.
            CharGrid.ColumnCount = NoOfCols;

            foreach (DataGridViewColumn Column in CharGrid.Columns)
            {
                //Set column width.
                Column.Width = ColWidth;
            }

            //Add rows
            CharGrid.Rows.Add(14);

            //Add chars to data grid
            AddCharsToGrid(0, 32);
            AddCharsToGrid(1, 48);
            AddCharsToGrid(2, 64);
            AddCharsToGrid(3, 80);
            AddCharsToGrid(4, 96);
            AddCharsToGrid(5, 112);
            AddCharsToGrid(6, 128);
            AddCharsToGrid(7, 144);
            AddCharsToGrid(8, 160);
            AddCharsToGrid(9, 176);
            AddCharsToGrid(10, 196);
            AddCharsToGrid(11, 208);
            AddCharsToGrid(12, 224);
            AddCharsToGrid(13, 240);

        }

        private void AddCharsToGrid(int Row, int Index)
        {
            for (int Counter = 0; Counter <= 15; Counter++)
            {
                CharGrid[Counter, Row].Value = (char)(Index + Counter);
            }
        }

Open in new window


Greetings, Peter Kiers
0
Comment
Question by:peterkiers
2 Comments
 
LVL 35

Accepted Solution

by:
Robert Schutt earned 500 total points
ID: 39803473
In the CharMap_Load function, add this line between your existing lines 19/20 as posted above):
cboFontName.SelectedIndexChanged += new EventHandler(cboFontName_SelectedIndexChanged); // attach the event handler

Open in new window

Then, add the event handler itself:
        void cboFontName_SelectedIndexChanged(object sender, EventArgs e) {
            try {
                CharGrid.Font = new Font(cboFontName.SelectedItem.ToString(), CharGrid.Font.Size);
            }
            catch (Exception ex) {
                //MessageBox.Show("error while setting font: " + ex.Message);
            }
        }

Open in new window

0
 
LVL 1

Author Comment

by:peterkiers
ID: 39804271
Thanks it works great. Greetings, Peter Kiers
0

Featured Post

Master Your Team's Linux and Cloud Stack!

The average business loses $13.5M per year to ineffective training (per 1,000 employees). Keep ahead of the competition and combine in-person quality with online cost and flexibility by training with Linux Academy.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

This document covers how to connect to SQL Server and browse its contents.  It is meant for those new to Visual Studio and/or working with Microsoft SQL Server.  It is not a guide to building SQL Server database connections in your code.  This is mo…
This article shows how to deploy dynamic backgrounds to computers depending on the aspect ratio of display
Two types of users will appreciate AOMEI Backupper Pro: 1 - Those with PCIe drives (and haven't found cloning software that works on them). 2 - Those who want a fast clone of their boot drive (no re-boots needed) and it can clone your drive wh…
Nobody understands Phishing better than an anti-spam company. That’s why we are providing Phishing Awareness Training to our customers. According to a report by Verizon, only 3% of targeted users report malicious emails to management. With compan…

808 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question