Good afternoon. I have a datagrid view with a column of type checkbox, tied to a DataTable with the column of type checkbox as well. My problem is this: I have to go through a presence list, if the student is present, I have to set the check to true, otherwise I will not do anything. How to do this?
dt.rows.add (?);
This code scans a gridview and marks / enables the status of checkbox
Based on this example to solve your problem:
DataGridView dgv = new DataGridView();
for (int i = 0; i < dgv.RowCount; i++)
{
DataGridViewRow row = dgv.Rows[i];
dgv.Rows[i].Cells["NomeDaColunaDoCheckBox"].Value = true;
}
I imagine it to be a Student's DataTable, with the following structure:
-|Data |Presenca
1|02/05/2017|true
2|01/05/2017|false
You will scroll through the attendance list, and if you find the student, you will add a row for that date. Ex:
DataRow r = dt.NewRow();
r["Data"] = DateTime.Now;
r["Presenca"] = true;
dt.Rows.Add(r);
If the DataTable is as GridView DataSource:
DataTable dt = (DataTable)Grid.DataSource;
DataRow r = dt.NewRow();
r["Data"] = DateTime.Now;
r["Presenca"] = true;
dt.Rows.Add(r);
Grid.DataSource = dt;