DataGridView CheckBox

[obrienkev]

Hi,

I have a Checkbox column in the DataGridView.

I am unable to change the state of the checkbox.

Why is this??? What do I need to set in Properties?

Using Visual Studio 2005

Thanks.

[obrienkev]

can anyone please help? Thank you!

[Plater]

What is the code you are using?
Is the column marked readonly(default)?
Are you bound to a datasource?

Please provide more information.

[obrienkev]

What is the code you are using?
Is the column marked readonly(default)?
Are you bound to a datasource?

Please provide more information.

I am bound to a datasource.
Column is not readonly.
The value it is bound to is an integer. Should it be boolean??

Tried binding to nothing and same issue.

Thanks.

[Plater]

If you are bound to a datasource you shouldn't be able to change the column type. It should be auto-created based on the underlying type from the datasource.

But yes, checkboxes should only be used to booleans

[obrienkev]

But I need to be able to allow the user to check/uncheck any row item.

Their selection will be saved to a database using a id related to the other columns in the datagridview.

Any suggestions??

[obrienkev]

OK I am able to Check/Uncheck an unbound DGV CheckBox. Set Read-Only to false.

I want to bind the primary key of my table to the checkbox.
If I do this then I am unable to check/uncheck the checkbox.

Any ideas?

Thanks

[obrienkev]

This code works for me provided the user only checks the checkbox once...

How Do I ensure the ArrayList only adds when the checkbox is at checked state??

Thanks!!

private void counterPartyDataGridView_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {
            DataGridView dgv2 = sender as DataGridView;
 
            if ((e.RowIndex != -1) && (e.ColumnIndex != -1))
            {
                ArrayList mySelectionArray = new ArrayList();
 
                if (e.ColumnIndex == 0)
                {
                    DataRow dr2 = ((DataRowView)dgv2.Rows[e.RowIndex].DataBoundItem).Row;
 
                    int mySelection2 = (int)dr2[dgv2.Columns[1].DataPropertyName]; // 1 = unique id column
                    mySelectionArray.Add(mySelection2);
                }
            }
        }

[Plater]

if (mycheckbox.Checked==true)
{
}
 

[obrienkev]

if (mycheckbox.Checked==true)
{
}
 

The Checked function is not available here...

private void counterPartyDataGridView_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {
            DataGridView dgv2 = sender as DataGridView;
 
            if ((e.RowIndex != -1) && (e.ColumnIndex != -1))
            {
                //ArrayList mySelectionArray = new ArrayList();
 
                if (e.ColumnIndex == 0)
                {
                    DataRow dr2 = ((DataRowView)dgv2.Rows[e.RowIndex].DataBoundItem).Row;
 
                    foreach (DataGridViewCheckBoxColumn thisCheckBox in dgv2.Columns)
                    {
                        if (thisCheckBox.Selected = CheckState.Checked)
                        {
                            int mySelection2 = (int)dr2[dgv2.Columns[1].DataPropertyName]; // 1 = unique id column
                            mySelectionArray.Add(mySelection2);
                        }
                    }
 
                    //int mySelection2 = (int)dr2[dgv2.Columns[1].DataPropertyName]; // 1 = unique id column
                    //mySelectionArray.Add(mySelection2);
                }
            }
        }