Dragging on DatagridView

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i have a datagridview with some textbox columns and one checkbox column.i want to make a row selected only when clicking on the checkbox column.multiple rows can be selected.but selection of rows by dragging is not allowed.what can i do?

Posted 16-Apr-12 20:29pm

veenavipeesh

Updated 17-Apr-12 1:07am

v2

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4 solutions

Solution 3

I think, disabling selection of rows by dragging on them means disabling multiple selection of rows, which can be achieved by setting the MultiSelect property of DataGridView to False as explained here.
DataGridView.MultiSelect Property[^]

Posted 16-Apr-12 20:47pm

VJ Reddy

Comments

veenavipeesh 17-Apr-12 2:56am

i need multiselection of rows.but multiple rows can be selected only by checking the columncheckbox on the grid.user must not select by dragging.

VJ Reddy 17-Apr-12 3:18am

I don't think there is a built in option in DataGridView to enable multi select and disable selection by dragging on rows. One option can be to disable selection by user and to handle selection programmatically. i.e. in the CellValue changed event, if the required cell is checked or unchecked then to change the back ground color of the row accordingly.

Solution 1

Hi,

Set AllowDrop property if DataGridView to false

Posted 16-Apr-12 20:36pm

Deepak_Sharma_

Solution 2

Not clear, drag columns?
If u don't want to do anything on DataGridView, u can set property ReadOnly=True on Properties toolbox

Regards

Posted 16-Apr-12 20:36pm

jerrykid

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veenavipeesh 17-Apr-12 2:39am

i mean, can i restrict selecting rows of datagridview by dragging on them?

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veenavipeesh · Accepted Answer · 2012-04-17T01:37:00

i have checked whether the checkbox is checked or not and if the checkbox is checked, then set the corresponding row selected.I wrote this code in the CurrentCellDirtyStateChanged,CellClick and RowLeave events of the dataGridView.

C#

for (int i = 0; i< dataGridView1.RowCount; i++)
 {
   if(Convert.ToBoolean(dataGridView1.Rows[i].Cells["checkboxname"].Value)== true)
       {
         dataGridView1.Rows[i].Selected = true;
       }
     else
      {
        dataGridView1.Rows[i].Selected = false;
       }
 }

Then dragging could not make the rows selected.