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How to jump to next selection in a datagridview.....or jump between seleted rows

Hi

I have a datagridview with checkbox selection rows,every time i select cntrl-J i want to jump to next selection checkd in my datagridview.....

private void ReconManuallyGridView_KeyDown(object sender, KeyEventArgs e)
        {
 
            if (e.KeyData == (Keys.Control | Keys.Z))
            {
                UndoLastReconciled(this.myOper);
            }
            if (e.KeyData == (Keys.Control | Keys.J))
            {
                JumpToNextReconcildRow();
            }
        }
        private bool nextCell = false;
 
        private void JumpToNextReconcildRow()
        {
            if (!m_isChangingCell)
            {
                nextCell = true;
 
                this.ReconManuallyGridView.CurrentCell = ReconManuallyGridView[3, ReconManuallyGridView.CurrentRow.Index];
 
                nextCell = false;
            }
        }

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Jorge Sanchez

First, you have to get the current index, and then loop in the next rows to see which one is checked


    int curr = ReconManuallyGridView.CurrentRow.Index;
    for (int i = curr; i <= ReconManuallyGridView.Rows.Count - 1; i++) {
        
        //change 0 for the index of your checkbox column
        if (ReconManuallyGridView[0, i].Value == true) {
            ReconManuallyGridView.CurrentCell = ReconManuallyGridView[3, i];
        }
    }

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Adnan

ASKER

Hi jorgesv13:

I get error on this line if (ReconManuallyGridView[0, i].Value != false)
error: Error 6 Operator '!=' cannot be applied to operands of type 'object' and 'bool'

Jorge Sanchez

you should do a casting to bool before making the comparison

if ((bool)ReconManuallyGridView[0, i].Value != false)

Adnan

ASKER

hmm oki, but know i get exeption saying that specified cast is not valid...?

Jorge Sanchez

Are you sure yout first column is your checkbox column?
You should replace the "0" for the correct index.
Or maybe you can try specifying the name of the column.
Example:
if ((bool)ReconManuallyGridView["myCheckboxColumn", i].Value != false)

Adnan

ASKER

hmm oki, its working know, but if i hvae more then one row checked i want to loop in selection and stop when it comes to last selection....?

Adnan

ASKER

i mean dont stop on last selection..!! loop throow

Jorge Sanchez

add a break instruction just after the line where you set the CurrentCell

ReconManuallyGridView.CurrentCell = ReconManuallyGridView[3, i];
break;

Adnan

ASKER

i set the break point as you sayd but know it has stop jumping......it stays on the same selection and not jumping throow....

Jorge Sanchez

ah.. maybe it's staying in the first
try adding one to the initial iterator:

for (int i = curr +1; .....

Adnan

ASKER

without break point it jumps to last index and the 2 or 3 index....?

Adnan

ASKER

and not

Adnan

ASKER

oki but how can i correct this?

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Jorge Sanchez

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Adnan

ASKER

Hi jorgesv13:

*yes i try adding one to intitial iterator it worked fine, but if selection is on last selection it wont jump to first one, how can i jump from last selection to first?

private void JumpToNextReconcildRow()
{

int curr = ReconManuallyGridView.CurrentRow.Index;
//for (int i = curr; i <= ReconManuallyGridView.Rows.Count - 1; i++)
for (int i = curr + 1; i <= ReconManuallyGridView.Rows.Count - 1; i++)
{
//change 0 for the index of your checkbox column
if ((bool)ReconManuallyGridView["recon", i].Value != false)
{
ReconManuallyGridView.CurrentCell = ReconManuallyGridView["recon", i];

break;
}

}
}

Adnan

ASKER

I MADE IT..... ;)

here is the code.....

private void JumpToNextReconcildRow()
{
int counter;
int curr = ReconManuallyGridView.CurrentRow.Index;
for (int i = curr + 1; i <= ReconManuallyGridView.Rows.Count - 1; i++)
{

if ((bool)ReconManuallyGridView["Recon", i].Value == true)
{
ReconManuallyGridView.CurrentCell = ReconManuallyGridView["Recon", i];
return;
}
}
for (int i = 0; i <= curr; i++)
{

if ((bool)ReconManuallyGridView["Recon", i].Value == true)
{
ReconManuallyGridView.CurrentCell = ReconManuallyGridView["Recon", i];

return;
}

}

}

Adnan

ASKER

thanks