I have winform in C # that I dynamically created two comboboxes and a text box. When the user selects the month and year and enters the value in the text box, I want to get the corresponding comboboxes values when I click to save. By default, the month and year assembly will select the current month and year.
On the same screen there is another part where the data will be filled in for the previous month, for example, from January to March during the current year in lists and text fields, if available.
I am not sure if this approach is correct, or should I go with datagridview. Below is a screenshot and my code. Any suggestions on how I can do this.
Screenshot

the code
private void createComboMonths()
{
int width = 79;
int height = 24;
int spacing = 28;
ComboBox[] SubMonths = new ComboBox[12];
for (int i = 0; i <= 11; ++i)
{
SubMonths[i] = new ComboBox();
SubMonths[i].Name = "SubMonths";
SubMonths[i].DropDownStyle = ComboBoxStyle.DropDownList;
SubMonths[i].Size = new Size(width, height);
SubMonths[i].Location = new Point(56, (i * height) + spacing);
SubMonths[i].Items.Add("January");
SubMonths[i].Items.Add("February");
SubMonths[i].Items.Add("March");
SubMonths[i].Items.Add("April");
SubMonths[i].Items.Add("May");
SubMonths[i].Items.Add("June");
SubMonths[i].Items.Add("July");
SubMonths[i].Items.Add("August");
SubMonths[i].Items.Add("September");
SubMonths[i].Items.Add("October");
SubMonths[i].Items.Add("November");
SubMonths[i].Items.Add("December");
SubMonths[i].SelectedItem = DateTime.Today.ToString("MMMM");
plSubscription.Controls.Add(SubMonths[i]);
}
}
private void createComboYears()
{
int width = 79;
int height = 24;
int spacing = 28;
ComboBox[] SubYears = new ComboBox[12];
for (int i = 0; i <= 11; ++i)
{
SubYears[i] = new ComboBox();
SubYears[i].Name = "SubYears";
SubYears[i].DropDownStyle = ComboBoxStyle.DropDownList;
SubYears[i].Size = new Size(width, height);
SubYears[i].Location = new Point(145, (i * height) + spacing);
plSubscription.Controls.Add(SubYears[i]);
fillComboData(SubYears[i]);
}
}
private void createTextBoxes()
{
int width = 79;
int height = 24;
int spacing = 28;
TextBox[] subAmt = new TextBox[12];
for (int i = 0; i <= 11; ++i)
{
subAmt[i] = new TextBox();
subAmt[i].Name = "SubAmt" + i;
subAmt[i].Border.Class = "TextBoxBorder";
subAmt[i].Size = new Size(width, height);
subAmt[i].Margin = new Padding(10, 10, 10, 10);
subAmt[i].Location = new Point(279, (i * height) + spacing);
subAmt[i].KeyPress += new KeyPressEventHandler(txtJanAmt_KeyPress);
plSubscription.Controls.Add(subAmt[i]);
}
}
private void btnSave_Click(object sender, EventArgs e)
{
DataTable dtSubs = new DataTable();
dtSubs.Columns.Add("SubscriberID", typeof(string));
dtSubs.Columns.Add("Month", typeof(string));
dtSubs.Columns.Add("Year", typeof(string));
dtSubs.Columns.Add("SubAmt", typeof(string));
DataRow row = dtSubs.NewRow();
foreach (Control c in plSubscription.Controls)
{
}
}
EDIT 1
, datatable,
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for (int i = 0; i < dt.Rows.Count; i++)
{
#region Grid Column Names
DataGridViewComboBoxColumn mntCmb = new DataGridViewComboBoxColumn();
mntCmb.HeaderText = "Month";
mntCmb.Name = "Month";
mntCmb.DataSource = dt;
mntCmb.DisplayMember = "paidformonth";
mntCmb.ValueMember = "paidformonth";
DataGridViewComboBoxColumn yearCmb = new DataGridViewComboBoxColumn();
yearCmb.HeaderText = "Year";
yearCmb.Name = "Year";
yearCmb.DisplayMember = "paidforyear";
yearCmb.ValueMember = "paidforyear";
DataGridViewTextBoxColumn amount = new DataGridViewTextBoxColumn();
amount.HeaderText = "Subscription Amount";
amount.Name = "Subscription Amount";
amount.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleRight;
#endregion
dgvSubscriptions.Columns.AddRange(mntCmb, yearCmb, amount);
}
2
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dgvSubscriptions.AllowUserToAddRows = true
, . , , - /, , , , , , , .

3
DataPropertyName ValueMember,
DataGridViewComboBoxColumn yearCmb = new DataGridViewComboBoxColumn();
yearCmb.HeaderText = "Year";
yearCmb.Name = "Year";
//yearCmb.DataSource = dt;
yearCmb.DisplayMember = "paidforyear";
//yearCmb.ValueMember = "paidforyear";
yearCmb.DataPropertyName= "paidforyear";
yearCmb.DefaultCellStyle.NullValue = dt.Rows[i][2].ToString();
yearCmb.ReadOnly = true;
dgvSubscriptions.Columns.Add(yearCmb);
4
,
dgvSubscriptions.AutoGenerateColumns = false;
dgvSubscriptions.ColumnCount = 1;
dgvSubscriptions.Columns[0].Name = "ID";
dgvSubscriptions.Rows.Clear();
for (int i = 0; i <dt.Rows.Count; i++)
{
dgvSubscriptions.Rows.Add();
#region Grid Column Names
DataGridViewComboBoxColumn mntCmb = new DataGridViewComboBoxColumn();
mntCmb.HeaderText = "Month";
mntCmb.Name = "Month";
mntCmb.DisplayMember = "paidformonth";
mntCmb.DataPropertyName = "paidformonth";
mntCmb.DefaultCellStyle.NullValue = dt.Rows[i][1].ToString();
mntCmb.ReadOnly = true;
dgvSubscriptions.Columns.Add(mntCmb);
DataGridViewComboBoxColumn yearCmb = new DataGridViewComboBoxColumn();
yearCmb.HeaderText = "Year";
yearCmb.Name = "Year";
yearCmb.DisplayMember = "paidforyear";
yearCmb.DataPropertyName= "paidforyear";
yearCmb.DefaultCellStyle.NullValue = dt.Rows[i][2].ToString();
yearCmb.ReadOnly = true;
dgvSubscriptions.Columns.Add(yearCmb);
DataGridViewTextBoxColumn amount = new DataGridViewTextBoxColumn();
amount.HeaderText = "Subscription Amount";
amount.Name = "Subscription Amount";
amount.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleRight;
amount.DataPropertyName="subamount";
amount.DefaultCellStyle.NullValue = dt.Rows[i][0].ToString();
amount.ReadOnly = true;
dgvSubscriptions.Columns.Add(amount);
#endregion
}
5
IRSOG , - .
public struct Data
{
public List<string> Mon { get; set; }
public List<string> Year { get; set; }
}
private void fillGridData(DataTable dt)
{
List<string> Mon = new List<string>() { "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" };
List<string> Year = new List<string>();
int CurrentYear = DateTime.UtcNow.Year;
int NextYear = CurrentYear + 1;
int LastFiveYears = CurrentYear - 5;
for (int i = LastFiveYears; i <= NextYear; i++)
{
Year.Add(i.ToString());
}
List<Data> _Data = new List<Data>();
for (int i = 1; i <= 12; i++)
{
_Data.Add(new Data() { Mon = Mon, Year = Year });
}
dgvSubscriptions.Rows.Clear();
dgvSubscriptions.Refresh();
dgvSubscriptions.Visible = true;
dgvSubscriptions.ColumnHeadersDefaultCellStyle.Font = new Font("Trebuchet MS", 8F, FontStyle.Regular);
dgvSubscriptions.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
dgvSubscriptions.AutoResizeColumns();
dgvSubscriptions.AllowUserToResizeColumns = true;
dgvSubscriptions.AllowUserToOrderColumns = true;
dgvSubscriptions.ColumnHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;
dgvSubscriptions.Dock = DockStyle.None;
dgvSubscriptions.BackgroundColor = this.BackColor;
dgvSubscriptions.BorderStyle = BorderStyle.None;
dgvSubscriptions.AllowUserToAddRows = true;
if (dt.Rows.Count > 0)
{
dgvSubscriptions.Rows.Clear();
dgvSubscriptions.Refresh();
#region Grid Column Names
dgvSubscriptions.AutoGenerateColumns = false;
dgvSubscriptions.Rows.Clear();
DataGridViewComboBoxColumn mntCmb = new DataGridViewComboBoxColumn();
mntCmb.HeaderText = "Month";
mntCmb.Name = "Month";
mntCmb.DataSource = Mon;
mntCmb.DefaultCellStyle.NullValue = "";
dgvSubscriptions.Columns.Add(mntCmb);
DataGridViewComboBoxColumn yearCmb = new DataGridViewComboBoxColumn();
yearCmb.HeaderText = "Year";
yearCmb.Name = "Year";
yearCmb.DataSource = Year;
yearCmb.DefaultCellStyle.NullValue = "";
dgvSubscriptions.Columns.Add(yearCmb);
DataGridViewTextBoxColumn amount = new DataGridViewTextBoxColumn();
amount.HeaderText = "Subscription Amount";
amount.Name = "Subscription Amount";
amount.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleRight;
amount.DefaultCellStyle.NullValue = "";
dgvSubscriptions.Columns.Add(amount);
#endregion
#region Populate Grid
for (int i = 0; i <dt.Rows.Count; i++)
{
dgvSubscriptions.Rows.Add();
dgvSubscriptions.Rows[i].Cells[0].Value = dt.Rows[i][1].ToString();
dgvSubscriptions.Rows[i].Cells[0].ReadOnly = true;
dgvSubscriptions.Rows[i].Cells[1].Value = dt.Rows[i][2].ToString();
dgvSubscriptions.Rows[i].Cells[1].ReadOnly = true;
dgvSubscriptions.Rows[i].Cells[2].Value = dt.Rows[i][0].ToString();
dgvSubscriptions.Rows[i].Cells[2].ReadOnly = true;
}
#endregion
}
else
{
#region Grid Column Names
DataGridViewComboBoxColumn mntCmb = new DataGridViewComboBoxColumn();
mntCmb.HeaderText = "Month";
mntCmb.Name = "Month";
mntCmb.DataSource = Mon;
DataGridViewComboBoxColumn yearCmb = new DataGridViewComboBoxColumn();
yearCmb.HeaderText = "Year";
yearCmb.Name = "Year";
yearCmb.DataSource = Year;
DataGridViewTextBoxColumn amount = new DataGridViewTextBoxColumn();
amount.HeaderText = "Subscription Amount";
amount.Name = "Subscription Amount";
amount.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleRight;
#endregion
dgvSubscriptions.Columns.AddRange(mntCmb, yearCmb, amount);
dgvSubscriptions.DataSource = _Data;
}
dgvSubscriptions.RowsDefaultCellStyle.Font = new Font("Trebuchet MS", 8F, FontStyle.Regular);
}