Datagridviewcheckboxcolumn's Problem

Environment: VS2013

System: Win7 32-bit

Problem: Using column style datagridviewcheckboxcolumn in DataGridView:

(1) with the mouse click on the interface, so that the Datagridviewcheckboxcolumn column of the Multiple checkbox state changes, when the mouse is still selected datagridviewcheckboxcolumn column of a cell, when the state is obtained, Found the selected cell value to get the result error;

Get method: Dr. cells["Checkitem"]. Value.tostring ()

            foreach (DataGridViewRow dr in Dgvsoftup.rows)            {                if (Dr. cells["Checkitem"]. Value = null)                {                    if (Convert.toboolean (Dr. cells["Checkitem"]. Value.tostring ()))                    {                         ...}                }}            

Workaround (from http://www.cnblogs.com/gossip/archive/2008/12/02/1346047.html):

Added in the Currentcelldirtystatechanged event of DataGridView: Dgvsoftup.commitedit (Datagridviewdataerrorcontexts.commit);

        private void Dgvsoftup_currentcelldirtystatechanged (object sender, EventArgs e)        {            Dgvsoftup.commitedit ( datagridviewdataerrorcontexts.commit);        }

(2) When setting the checkbox state through code, the status setting is not valid when the unit is in cells state.

The setup code is as follows:

           foreach (DataGridViewRow dr in Dgvsoftup.rows)            {                 Dr. cells["Checkitem"]. Value = true;            }

Workaround, after setting, add EndEdit ():

     Dgvsoftup.endedit ();

Datagridviewcheckboxcolumn's Problem