I am writing a stock system and the current interface I am working on allows users to add items to the database. There is a different table for each item type.
What I can currently do, is populate the DataGridView
with the entire table and its content, which is obviously not ideal.
What I would like to happen is, a user selects the type of item they want to add to the database from a ComboBox
this then populates a DataGridView
with the columns from the corresponding table for that item, but not the content. The user can then add a new row and populate the fields.
here is the code behind the ComboBox
, this also allows the user to select the sub type from a second ComboBox
.
var row = comboBox1.SelectedItem.ToString();
comboBox2.Items.Clear();
comboBox2.Text = "";
if (comboBox1.SelectedItem.ToString() == "ARRAYS")
{
var nameDT = (from names in ARRAYS.AsEnumerable()
where names.Field<string>("Array Type") != null
select names.Array_Type);
var cleanList = nameDT.Distinct().ToArray();
foreach (var item in cleanList)
{
comboBox2.Items.Add(item);
}
}
if (comboBox1.SelectedItem.ToString() == "BATT_CHARGER")
{
var nameDT = (from names in BATT_CHARGER.AsEnumerable()
where names.Field<string>("BATT_SIZE") != null
select names.BATT_SIZE);
var cleanList = nameDT.Distinct().ToArray();
foreach (var item in cleanList)
{
comboBox2.Items.Add(item);
}
}
if (comboBox1.SelectedItem.ToString() == "BUFFERBOX")
{
var nameDT = (from names in BUFFERBOX.AsEnumerable()
where names.Field<string>("BufferBox Type") != null
select names.BufferBox_Type);
var cleanList = nameDT.Distinct().ToArray();
foreach (var item in cleanList)
{
comboBox2.Items.Add(item);
}
}
How can I set the DataGridView
columns to the same as the tables they will be saving into, without filling it with all the row data?
ARRAYS
BUFFERBOX
BATT_CHARGER
are all table names, and Array Type, BATT_SIZE and BufferBox Type are column names.
I ended up doing this which works perfectly.
if (comboBox1.SelectedItem.ToString() == "USB_RS232")
{
var nameDT = (from names in USB_RS232.AsEnumerable()
where names.Field<string>("MODEL") != null
select names.MODEL);
datatable = USB_RS232;
var cleanList = nameDT.Distinct().ToArray();
foreach (var item in cleanList)
{
comboBox2.Items.Add(item);
}
}
dataGridView1.Columns.Clear();
foreach (DataColumn item in datatable.Columns)
{
var colname = item.ColumnName.ToString();
dataGridView1.Columns.Add(colname, colname);
}
The dataTable
is selected when you pick from the comboBox
then i just loop throught he column names in the dataTable
and add them to the DGV.
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