I have a DataGridView
binded to a DataTable
(DataTable
binded to database). I need to add a DataRow
to the DataTable
. I'm trying to use the following code:
dataGridViewPersons.BindingContext[table].EndCurrentEdit();
DataRow row = table.NewRow();
for (int i = 0; i < 28; i++)
{
row[i] = i.ToString();
}
But it doesn't work, DataGridView
has never been added a new row. Please, tell me, how can I fix my code?
Thank you in advance.
You can try with this code - based on Rows.Add method
DataTable table = new DataTable();
DataRow row = table.NewRow();
table.Rows.Add(row);
Link : https://msdn.microsoft.com/en-us/library/9yfsd47w.aspx
I found dotnetperls examples on DataRow
very helpful. Code snippet for new DataTable
from there:
static DataTable GetTable()
{
// Here we create a DataTable with four columns.
DataTable table = new DataTable();
table.Columns.Add("Weight", typeof(int));
table.Columns.Add("Name", typeof(string));
table.Columns.Add("Breed", typeof(string));
table.Columns.Add("Date", typeof(DateTime));
// Here we add five DataRows.
table.Rows.Add(57, "Koko", "Shar Pei", DateTime.Now);
table.Rows.Add(130, "Fido", "Bullmastiff", DateTime.Now);
table.Rows.Add(92, "Alex", "Anatolian Shepherd Dog", DateTime.Now);
table.Rows.Add(25, "Charles", "Cavalier King Charles Spaniel", DateTime.Now);
table.Rows.Add(7, "Candy", "Yorkshire Terrier", DateTime.Now);
return table;
}
//َCreating a new row with the structure of the table:
DataTable table = new DataTable();
DataRow row = table.NewRow();
table.Rows.Add(row);
//Giving values to the columns of the row(this row is supposed to have 28 columns):
for (int i = 0; i < 28; i++)
{
row[i] = i.ToString();
}
You have to add the row explicitly to the table
table.Rows.Add(row);
If need to copy from another table then need to copy structure first:
DataTable copyDt = existentDt.Clone();
copyDt.ImportRow(existentDt.Rows[0]);
This works for me:
var table = new DataTable();
table.Rows.Add();
try table.Rows.add(row);
after your for
statement.
GRV.DataSource = Class1.DataTable;
GRV.DataBind();
Class1.GRV.Rows[e.RowIndex].Delete();
GRV.DataSource = Class1.DataTable;
GRV.DataBind();
来源:https://stackoverflow.com/questions/12642049/how-to-add-new-datarow-into-datatable