Gridview with Checkboxes range select

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Hi, all

I have a gridview, the first column is checkbox, the page size of gridview is 50.
Now i want to give the range for selecting check boxes in the gridview. Ex.If i give 1-5 means that 1 to 5 rows checkboxes need to select in the gridview.Grid have the paging also. In every page the range must be in 1 to 50 only. Can any body help me. Its urgent. Thank in advance.

Here the code:

ASP.NET

<asp:GridView ID="grvRecords" runat ="server" AutoGenerateColumns="false" Font-Bold="True"
            Font-Names="Trebuchet MS" Font-Size="10px" AllowPaging="True" 
        onpageindexchanging="grvRecords_PageIndexChanging" PageSize="50" 
        Font-Underline="False" AllowSorting="True" onsorting="grvRecords_Sorting" >
<columns>
 <asp:TemplateField  >
            <HeaderTemplate >
           <input id="chkAllItems" type="checkbox"  onclick="CheckAllDataGridCheckBoxes('chkItemChecked',document.forms[0].chkAllItems.checked)" value="Check">
            </HeaderTemplate>
            <itemtemplate>
            <asp:CheckBox id="chkBulk" runat="server" Width="30px" AutoPostBack="False"> 
            </itemtemplate>

and the Script is:(firstno, lastno is the range)

JavaScript

var grid1 = document.getElementById("<%= grvRecords.ClientID %>");
if (grid1.rows.length > 0) {
    for (var i = firstno - 1; i < secondno; i++) {
        var cell = grid1.rows[i].cells[0];

        for (var j = 0; j < cell.childNodes.length; j++) {
            if (cell.childNodes[j].type == "checkbox" && cell.childNodes[j].name=="chkBulk" ) {
                cell.childNodes[j].checked = true;
            }
        }
    }
}

The above code is not getting output.

Posted 7-Aug-12 20:59pm

Murthy_RDV

Updated 7-Aug-12 21:05pm

_Amy

v2

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HemendraSingh88 · Answer 1 · 2012-08-07T21:22:00

This is just an example for your scenario:-

C#

protected void Page_Load(object sender, EventArgs e)
        {
            ArrayList arr = new ArrayList();
            arr.Add("1");
            arr.Add("2");
            arr.Add("3");
            arr.Add("4");
            arr.Add("5");
            arr.Add("6");
            arr.Add("7");

            GridView1.DataSource = arr;
            GridView1.DataBind();
        }

C#

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowType == DataControlRowType.DataRow)
            {
                CheckBox chk = (CheckBox)e.Row.FindControl("CheckBox1");

                if (e.Row.RowIndex <= 4)
                {
                        chk.Checked=true;
                }
            }
        }