Adding line to datagridveiw from textbox

Marvin kakuru

hi there,
your all ok i hope. Gat stuck been trying to add lines to my datagridview from various textboxes. just like you add an item to a shoping basket, but every time i click my button i only replace what i had already entered with what is in my textboxes.

any help below is the code i am using

}
DataTable dt = new DataTable();
dt.Columns.Add = ("DAY",typeof(string));
DataRow DR = dt.NewRow();
DR["Day"] = textbox1.Text.Tostring();
dt.Rows.Add(DR);
dataGridView1.Datasource=dt;
}

thanks

4 Replies

Know the answer? Post it — somebody with the same question will find it here.

Vulpes15y ago
Accepted answer
Sure, the code will become:

DataTable dt = (DataTable)dataGridView1.Datasource;
if (!dt.Columns.Contains("Day"))
{
dt.Columns.Add("Day",typeof(string)); // only add if not already created
}
DataRow DR = dt.NewRow();
DR["Day"] = textBox1.Text.Tostring();
dt.Rows.Add(DR);
dataGridView1.Datasource = dt;

It may rebind automatically without the need for the last line - comment it out and see.
Marvin kakuru15y ago
vulpes thanks man it has worked just fine.
kind regards
Marvin kakuru15y ago
thanks man, though i dont understand how i can do that.
kindly use my code to show me an how i can add rows and rebind.
thanks
Vulpes15y ago
If you want to add lines to the DataGridView when you will need to add rows to the existing DataTable and rebind.

What you're doing at the moment is creating a new DataTable and then binding to that, so it will replace all the lines you previously had with the new ones.