how can use DataGridView with CheckBox

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hi everyone,
i am make a financial calculation in my application. it contains a 3 datagrid, it show 3 different credits and debits likes that, now my requirement is user want be HighLighted some rows in that Datagrid, Bcoz the highlighted rows some important debits/ credits. so now i decided to make checkbox selection to highlighted rows. when the transaction is not necessary remove selection in that chkbox it will be clear that row color.
i hope u all to understand my question.
how can i use gridview with checkbox with color changing:

Posted 6-May-13 21:40pm

srigates

Updated 6-May-13 22:04pm

v2

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2 solutions

Solution 2

add a templated field to that grid view with checkbox control
eg->

XML

<asp:TemplateField>
                <ItemTemplate>
                    <asp:CheckBox ID="cb1" runat="server" />
                </ItemTemplate>
            </asp:TemplateField>

I'm providing the following example to retrieve the corresponding values where check boxes are checked

C#

protected void Button1_Click(object sender, EventArgs e)
   {
       int sum = 0;
       for (int i = 0; i < GridView1.Rows.Count; i++)
       {
           CheckBox cb = GridView1.Rows[i].FindControl("cb1") as CheckBox;
           if (cb.Checked)
           {
               sum += Convert.ToInt32(GridView1.Rows[i].Cells[2].Text);
           }
       }
       Label1.Text = sum.ToString();
   }

Posted 6-May-13 23:59pm

Bikash Prakash Dash

Comments

srigates 7-May-13 6:02am

i am asking in windows application...

Bikash Prakash Dash 7-May-13 6:08am

oho sry , let me check

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Aarti Meswania · Accepted Answer · 2013-05-06T22:13:00

Solution 1

1. add DatagridviewCheckboxColumn

2.
Use CurrentCellDirtyStateChanged event put color changing code stuff inside

VB

Private void dgv1_CurrentCellDirtyStateChanged(Object sender, System.EventArgs e) 
{
            If (dgv1.IsCurrentCellDirty)
            {
                dgv1.CommitEdit(DataGridViewDataErrorContexts.Commit)
                If (dgv1.CurrentCell.ColumnIndex == 1)
                {  
                    oCell = dgv1.Rows[dgv1.CurrentCell.RowIndex].Cells[0] as DataGridViewCheckBoxCell;
                       bool bChecked = (null != oCell && null != oCell.Value && true == (bool)oCell.Value);
                       if (true == bChecked)
                       {
                          dgv1.Rows[dgv1.CurrentCell.RowIndex].DefaultCellStyle.BackColor = Color.Yellow;
                       }                  
                    else
                    {
                         dgv1.Rows[dgv1.CurrentCell.RowIndex].DefaultCellStyle.BackColor = Color.Green;
                    }
                }
            }
}

Happy Coding!
:)

Posted 6-May-13 22:13pm

Aarti Meswania

Updated 7-May-13 2:18am

v4

Comments

srigates 7-May-13 6:14am

private void dataGridView1_CurrentCellDirtyStateChanged(object sender, EventArgs e)
{
if (dataGridView1.IsCurrentCellDirty)
{
dataGridView1.CommitEdit(DataGridViewDataErrorContexts.Commit);
if (dataGridView1.CurrentCell.ColumnIndex == 1)
{
if (dataGridView1.CurrentCell.Value ==true) // error
{
dataGridView1.Rows(dataGridView1.CurrentCell.RowIndex).DefaultCellStyle.BackColor = Color.Yellow;

}
else
{
dataGridView1.Rows(dataGridView1.CurrentCell.RowIndex).DefaultCellStyle.BackColor = Color.Green;
}
}

}

}
it show the error like object '==' bool values and dgrv.Rows is show an error.

srigates 7-May-13 7:06am

dataGridView1.Rows(dataGridView1.CurrentCell.RowIndex).DefaultCellStyle.BackColor = Color.Yellow;
it show error in dataGridView1.Rows//

Aarti Meswania 7-May-13 7:12am

it's c# so use "[]" instead of "()"...
dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].DefaultCellStyle.BackColor = Color.Yellow;

srigates 7-May-13 7:50am

finally i got coloring in my grid, if remove check it does change to green color.

private void dataGridView1_CurrentCellDirtyStateChanged(object sender, EventArgs e)
{

if (dataGridView1.IsCurrentCellDirty)
{
if (dataGridView1.CurrentCell == null)
return;
if (dataGridView1.CurrentCell.ColumnIndex == 0)
{
dataGridView1.CommitEdit(DataGridViewDataErrorContexts.Commit);
if ((dataGridView1.CurrentCell.Value != null))
{

dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].DefaultCellStyle.BackColor = Color.Yellow;

}
if ((dataGridView1.CurrentCell.Value == null))
{
{
dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].DefaultCellStyle.BackColor = Color.Green;
}
}
}

}

i am use this code.. it change color but it does not change to green color.
and boolean a=false;// here showing error.if change to Boolean and also show two more line error.

Aarti Meswania 7-May-13 7:56am

above code is working or not?

srigates 7-May-13 8:05am

it showing error in here boolean a=false;

srigates 7-May-13 8:13am

i am waiting for ur reply.

Aarti Meswania 7-May-13 8:14am

in this code...

private void dataGridView1_CurrentCellDirtyStateChanged(object sender, EventArgs e)
{

if (dataGridView1.IsCurrentCellDirty)
{
if (dataGridView1.CurrentCell == null)
return;
if (dataGridView1.CurrentCell.ColumnIndex == 0)
{
dataGridView1.CommitEdit(DataGridViewDataErrorContexts.Commit);
if ((dataGridView1.CurrentCell.Value != null))
{

dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].DefaultCellStyle.BackColor = Color.Yellow;

}
if ((dataGridView1.CurrentCell.Value == null))
{
{
dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].DefaultCellStyle.BackColor = Color.Green;
}
}
}

}

I can't see boolean a = false;

srigates 7-May-13 8:20am

in ur code. boolean a=false;

Aarti Meswania 7-May-13 8:24am

check updated solution

srigates 7-May-13 8:31am

ocell wer u declared.. what is data type of ocell

Aarti Meswania 7-May-13 8:40am

DataGridViewCheckBoxCell ocell = ...

srigates 7-May-13 8:45am

thanks a lot. ya. it work fine..

Aarti Meswania 7-May-13 8:56am

Welcome!
Glad to help you! :)