How to use checked and unchecked event in dataGridView?

Prakash Mondal

I used checkbox in dataGridView.

I want to when I checked then a confirm box will appear, if you choose No then checkbox will unchecked.

my code:

private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
{

if (e.ColumnIndex == 0)
{
if (Convert.ToBoolean(dataGridView1.Rows[e.RowIndex].Cells["chkBox"].EditedFormattedValue) == true)
{
bool flag = false;
string action = MessageBox.Show("After Process, This Record Will Invalid. Do You Continue?", "Alert!", MessageBoxButtons.YesNo, MessageBoxIcon.Information).ToString().ToString();
if (action == "Yes")
{
flag = true;
}
else if (action == "No")
{
flag = false;
}
if (flag)
{
MessageBox.Show("OKOK");
}
else
{

}
MessageBox.Show("Checked: " );
}
else
{
MessageBox.Show("Un-Checked: ");
}
}
}

And another is when dataGridView is loading then the checkboxes will checked or unchecked depends of a flag.

Please help me.

3 Replies

Know the answer? Post it — somebody with the same question will find it here.

Laxmidhar Sahoo8y ago
1. private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
2. {
3. //We make DataGridCheckBoxColumn commit changes with single click
4. //use index of logout column
5. if(e.ColumnIndex == 4 && e.RowIndex>=0)
6. this.dataGridView1.CommitEdit(DataGridViewDataErrorContexts.Commit);
8. //Check the value of cell
9. if((bool)this.dataGridView1.CurrentCell.Value == true)
10. {
11. //Use index of TimeOut column
12. this.dataGridView1.Rows[e.RowIndex].Cells[3].Value = DateTime.Now;
14. //Set other columns values
15. }
16. else
17. {
18. //Use index of TimeOut column
19. this.dataGridView1.Rows[e.RowIndex].Cells[3].Value = DBNull.Value;
21. //Set other columns values
22. }
23. }
0

Prakash Mondal8y ago

Hey! Laxmidhar Sahoo

this is not my web based application. I face this problen in C# Windows Form Application.

Please write using Windows Form Application.

Laxmidhar Sahoo8y ago

Below I pest a pice of code may help you

<asp:GridView ID="grdView" runat="server" OnRowCommand="grdView_OnRowCommand">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="chkBox" runat="server"
CommandArgument='<%# ((GridViewRow) Container).RowIndex %>' CommandName="chkbocCheck"
AutoPostBack="true" />
ItemTemplate>
asp:TemplateField>
Columns>
asp:Gridview>
protected voidgrdView_OnRowCommand (object sender, EventArgs e)
{
string part = button.CommandArgument;
int rowIndex = Int32.Parse(part);
CheckBox chk= null;
if (rowIndex != -1)
{
chk= (CheckBox )gvAlertSummary.Rows[rowIndex].Cells[0].FindControl("chkBox");
// Write your logic here
} }