how to add data to datagrid without database

Carlos kambui

11y954Visual Basic .NET

how to add data to datagridview without interfering with database

3 Replies

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Carlos kambui11y ago
below are my codes help to correct ,no error but not working
btnAdd
CourseUnitsType tunit = new CourseUnitsType();
if (btncourseadd.Text == "Add")
{
tunit.course_unit_id = 0;
tunit.course_id = Convert.ToInt32(txtcUnitsId.Text);
tunit.unit_id = Convert.ToInt32(txtUnitsid.Text);
tunit.student_id = Convert.ToInt32(txtCourseStudentid.Text);
cut.Add(tunit);
loadcunits();
}
else
{
int i, unitId;
i = dgunits.SelectedCells[0].RowIndex;
unitId = Convert.ToInt32(dgunits.Rows[i].Cells[0].Value.ToString());
tunit = SvcClient.Getcourse_unitstype(unitId);
tunit.student_id = Convert.ToInt32(txtStudentid.Text);
tunit.course_id = Convert.ToInt32(txtcUnitsId.Text);
tunit.unit_id = Convert.ToInt32(txtUnitsid.Text);
cut.RemoveAt(i);
cut.Add(tunit);
loadcunits();
}
private void loadcunits()
{

if (studentId > 0)
{
List cuids = new List();
List cut= new List();
cut= SvcClient.Getcourse_unitstypes(studentId);
if (cuids.Count == 0)
cut= SvcClient.Getcourse_unitstypes(studentId);
}
dgunits.DataSource = cut;
dgunits.DataSource = cuids;

}
else
{
}
after having a breakpoint
cut= SvcClient.Getcourse_unitstypes(studentId); is correct but

dgunits.DataSource = cut;
dgunits.DataSource = cuids; not working
Khan Abrar Ahmed11y ago
Hi check the below url

http://www.fatechs.com/2014/03/using-datagridview-in-c-tutorial.html
Shuvojit Halder11y ago
Create a static datatable and use it for your gridview.

static void Main() {
// Get the DataTable. DataTable table = GetTable();
// ... Use the DataTable here with SQL. } ///
/// This example method generates a DataTable.
///

static DataTable GetTable() {
// Here we create a DataTable with four columns.

DataTable table = new DataTable();

table.Columns.Add("Dosage", typeof(int)); table.Columns.Add("Drug", typeof(string));
table.Columns.Add("Patient", typeof(string)); table.Columns.Add("Date", typeof(DateTime));

// Here we add five DataRows.

table.Rows.Add(25, "Indocin", "David", DateTime.Now);
table.Rows.Add(50, "Enebrel", "Sam", DateTime.Now);
table.Rows.Add(10, "Hydralazine", "Christoff", DateTime.Now);
table.Rows.Add(21, "Combivent", "Janet", DateTime.Now);
table.Rows.Add(100, "Dilantin", "Melanie", DateTime.Now); return table;
}