在datagridview中添加新行

Question

I want to add new row to a gridview. The value of each cell comes from the bottom blank cells. How to grab the cell's value?

private void AddRow_Click(object sender, EventArgs e)
    {
        DataTable dt = ds.Tables["test"];
        DataRow dr = dt.NewRow();
        // not sure how to add
    }

Please also notice there is a checkbox in a column.

Thanks.

Answer 1

The code can be used

//define datatable (with all columns you want to have)...
  DataRow dr;
  int lastRow = this.dataGridView1.Rows.Count-2;
  for(int i=0;i<dataGridView1.Columns.Count; i++)
  {
     // grab the values from the last row cells.
     dr[i] = dataGridView1[i, lastRow].Value;
   }
     dataTable.Rows.Add(dr);

Self reslove it.

Answer 2

DataTable myTable = new DataTable();
DataColumn values = new DataColumn("Test");
myTable.Columns.Add(values);
DataRow rd = myTable.NewRow();
rd["Test"] ="";
myTable.Rows.Add(rd);
datagridview1.DataSource = myTable;

Answer 3

You can add Rows to the datatable by using the Add method.

dt.Rows.Add(dr);

You can access the values by using the overloaded brackets.

dt.Rows[a][b]

will give you the value at a certain row and certain column

To get the value of the Checkbox you can cast the object retrieved from dt.Rows[a][b] to a checkbox and then get the value of the Checked attribute.

((CheckBox)dt.Rows[a][b]).Checked

Hope this helps,

Matt