how add checkbox column and work with its value

[samaneh]

hi all

I use radgrid in my page with 2 GridBoundColumn

I want add 1 checkbox column to this grid that users can checked them.
then in my save button(that is in above of my page outside of grid),I check each checkbox of each row.if this is"checked",I save that row in my database

how can I do that

[Jayesh Goyani]

   <telerik:GridClientSelectColumn UniqueName="ClientSelectColumn"  Reorderable="false" />

foreach (GridItem item in radgrd1.MasterTableView.GetItems(new GridItemType[] { GridItemType.Item, GridItemType.AlternatingItem }))

        {

            GridDataItem dataitem = (GridDataItem)item;

            TableCell cell = dataitem["ClientSelectColumn"];

            CheckBox checkBox = (CheckBox)cell.Controls[0];

            if (checkBox.Checked)

            {

                // do something 

 

        //  get value from bound column

                foreach (GridColumn col in radgrd1.MasterTableView.Columns)

                {

                    if (col.UniqueName == "boundcolumnUniueName")

                    {

                        string strtemp =  dataitem[col.UniqueName].Text;

                    }

                }

                

            }

        }

[Jayesh Goyani]

  <telerik:GridTemplateColumn UniqueName="CheckBoxTemplateColumn" AllowFiltering="false">
                               
                                <ItemTemplate>
                                    <asp:CheckBox ID="Chkitem" runat="server" value='<%# Eval("VALUE")'></asp:CheckBox>
                                </ItemTemplate>
                            </telerik:GridTemplateColumn>



foreach (GridDataItem dataItem in radgrd1.MasterTableView.Items)
            {
CheckBox Chkitem = dataItem.FindControl("Chkitem") as CheckBox;
                if (Chkitem .Checked == true)
                {
                  striong checkBoxValue = Chkitem.Value;
                    string strTemp = dataItem.GetDataKeyValue("ID").ToString() ;
                }
            }


let me know if this code not help you...

[samaneh]

thanks friends
I do that like your help but there is a new propblem:

my radgrid has "AllowPaging=true"
when user checked  checkboxes of rows 1,2,3 of page 1 then go to page 2 and checked rows 3,4 and then return to page 1,all rows of page 1 are "unchecked".

how can I save them ,that when user change pages,these checked didn't clear


in gridview of asp.net ,In PageIndexChanging method,before user change page,I save  index of checked rows in an array and after change page,read from that array and check them again but in radgrid we haven't PageIndexChanging  method

do you have any soution for me that checkboxes didn't clear?

[Jayesh Goyani]

hi samaneh,
u may solve your issue with below code...

<script type="text/javascript">
 var selected = {};
            function RadGrid1_RowSelected(sender, args) {
                var StudentId = args.getDataKeyValue("StudentId");
                if (!selected[StudentId]) {
                    selected[StudentId] = true;
                }
            }
            function RadGrid1_RowDeselected(sender, args) {
                var StudentId = args.getDataKeyValue("StudentId");
                if (selected[StudentId]) {
                    selected[StudentId] = null;
                }
            }
            function pageLoad(sender, args) {
                var dataItems = $find('<%=RadGrid1.ClientID %>').get_masterTableView().get_dataItems();
                for (var i = 0, j = dataItems.length; i < j; i++) {
                    var item = dataItems[i];
                    if (selected[item.getDataKeyValue("StudentId")]) {
                        item.set_selected(true);
                    }
                }
            }
 </script>


<telerik:RadGrid ID="RadGrid1" runat="server">
 <MasterTableView  ClientDataKeyNames="StudentId">

 <ClientSettings   Selecting-AllowRowSelect="true" EnableRowHoverStyle="true">
                        <ClientEvents OnRowSelected="RadGrid1_RowSelected" OnRowDeselected="RadGrid1_RowDeselected" />
                    </ClientSettings>

                </telerik:RadGrid>

let me know if this code not help you...

Regards,
Jayesh Goyani
Radix web