I try to get data from text file what I,ve done. And next I want one of column as comboBox. I have no idea how to do that. Should I do it in opposite order? How to put ColumnComboBox in existing DataGridView?
Code to create column ComboBox:
private void FillUslugaComboBoxDataGridView()
{
try
{
StreamReader sr = new StreamReader(@"C:\Users\Radek\Documents\Visual Studio 2010\Projects\Salon Fryzjerski\Salon Fryzjerski\Salon Fryzjerski\Baza\Uslugi.txt");
string line = sr.ReadLine();
DataGridViewComboBoxColumn usluga = new DataGridViewComboBoxColumn();
if (line != null)
{
while (line != null)
{
usluga.Items.Add(line);
line = sr.ReadLine();
}
}
else
{
usluga.Items.Add("Error to fill, column is null");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
You have to add the column to the datagridview. As an example, see sample code below :
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;
namespace SOWinForm
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private DataGridView DataGridView1;
private void Form1_Load(object sender, EventArgs e)
{
DataGridView1 = new DataGridView();
var column = CreateComboBoxColumn();
SetAlternateChoicesUsingDataSource(column);
DataGridView1.Columns.Add(column);
Controls.Add(DataGridView1);
}
private DataGridViewComboBoxColumn CreateComboBoxColumn()
{
DataGridViewComboBoxColumn column =
new DataGridViewComboBoxColumn();
{
column.DataPropertyName = "Name";
column.HeaderText = "Name";
column.DropDownWidth = 150;
column.Width = 100;
column.MaxDropDownItems = 3;
column.FlatStyle = FlatStyle.Flat;
}
return column;
}
private void SetAlternateChoicesUsingDataSource(DataGridViewComboBoxColumn comboboxColumn)
{
{
comboboxColumn.DataSource = RetrieveNames();
comboboxColumn.ValueMember = "Name";
comboboxColumn.DisplayMember = comboboxColumn.ValueMember;
}
}
private List<Student> RetrieveNames()
{
return new List<Student>() { new Student() { Name = "Rohan" }, new Student() { Name = "Ram" } };
}
}
public class Student
{
public string Name { get; set; }
}
}
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