Gridview get Checkbox.Checked value

I have a GridView that has 10 columns populated by CheckBoxes. But instead of using FindControl() is there a way to get the CheckBox.Checked value by using a loop?

Current Code:

if (e.CommandName == "updaterow")
{
     int index = Convert.ToInt32(e.CommandArgument);
     GridViewRow selectedRow = GridView1.Rows[index];
     // TableCell BranchCode = selectedRow.Cells[0];
     CheckBox cb101 = (CheckBox)selectedRow.FindControl("cb101");
     CheckBox cb102 = (CheckBox)selectedRow.FindControl("cb102");
     //...and so on
}

ASPX CODE:

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" OnRowCommand="GridView1_RowCommand">
    <Columns>
        <asp:TemplateField HeaderText="101">
            <ItemTemplate>
                <asp:CheckBox runat="server" id="cb101" AutoPostBack="false" Checked='<%# Eval("101").ToString()=="1" ? true : false %>' Enabled='<%#(String.IsNullOrEmpty(Eval("101").ToString()) ? false: true) %>'/>
            </ItemTemplate>
        </asp:TemplateField>
        ....and so on
        <asp:ButtonField ButtonType="Button" CommandName="updaterow" Text="Update"/>
    </Columns>
</asp:GridView>

Answers:

Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave a comment & I’ll get back to you as soon as possible.

Method 1

Try this,

Using foreach Loop:

foreach (GridViewRow row in GridView1.Rows)
{
     CheckBox chk = row.Cells[0].Controls[0] as CheckBox;
     if (chk != null && chk.Checked)
     {
       // ...
     }
}

Use it in OnRowCommand event and get checked CheckBox value.

GridViewRow row = (GridViewRow)(((Control)e.CommandSource).NamingContainer);
int requisitionId = Convert.ToInt32(e.CommandArgument);
CheckBox cbox = (CheckBox)row.Cells[3].Controls[0];

Method 2

For run all lines of GridView don’t use for loop, use foreach loop like:

foreach (GridViewRow row in yourGridName.Rows) //Running all lines of grid
{
    if (row.RowType == DataControlRowType.DataRow)
    {
         CheckBox chkRow = (row.Cells[0].FindControl("chkRow") as CheckBox);

         if (chkRow.Checked)
         {
              //if checked do something
         }
    }
}

Method 3

    foreach (GridViewRow row in GridView1.Rows)
    {
        CheckBox chkbox = (CheckBox)row.FindControl("CheckBox1");
        if (chkbox.Checked == true)
        {
            // Your Code
        }
    }

Method 4

If you want a method other than findcontrol try the following:

 GridViewRow row = Gridview1.SelectedRow;
 int CustomerId = int.parse(row.Cells[0].Text);// to get the column value
 CheckBox checkbox1= row.Cells[0].Controls[0] as CheckBox; // you can access the controls like this

Method 5

     foreach (DataRow row in DataRow row in GridView1.Rows)
        {
            foreach (DataColumn c in GridView1.Columns)

               bool ckbVal = (bool)(row[c.ColumnName]);

        }

Method 6

Blockquote

    foreach (GridViewRow row in tempGrid.Rows)
    {
        dt.Rows.Add();
        for (int i = 0; i < row.Controls.Count; i++)
        {
            Control control = row.Controls[i];
            if (control.Controls.Count==1)
            {
                CheckBox chk = row.Cells[i].Controls[0] as CheckBox;
                if (chk != null && chk.Checked)
                {
                    dt.Rows[dt.Rows.Count - 1][i] = "True";
                }
                else
                dt.Rows[dt.Rows.Count - 1][i] = "False";
            }
            else
                dt.Rows[dt.Rows.Count - 1][i] = row.Cells[i].Text.Replace("&nbsp;", "");
        }
    }

Method 7

You want an independent for loop for all the rows in grid view, then refer the below link

http://nikhilsreeni.wordpress.com/asp-net/checkbox/

Select all checkbox in Gridview

CheckBox cb = default(CheckBox);
for (int i = 0; i <= grdforumcomments.Rows.Count – 1; i++)
{
    cb = (CheckBox)grdforumcomments.Rows[i].Cells[0].FindControl(“cbSel”);

    cb.Checked = ((CheckBox)sender).Checked;
}

Select checked rows to a dataset; For gridview multiple edit

CheckBox cb = default(CheckBox);

foreach (GridViewRow row in grdforumcomments.Rows)
{
    cb = (CheckBox)row.FindControl("cbsel");
    if (cb.Checked)
    {
        drArticleCommentsUpdates = dtArticleCommentsUpdates.NewRow();
        drArticleCommentsUpdates["Id"] = dgItem.Cells[0].Text;
        drArticleCommentsUpdates["Date"] = System.DateTime.Now;dtArticleCommentsUpdates.Rows.Add(drArticleCommentsUpdates);
    }
}

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0