datagrid

have a datagrid which has many pages (10 rows per page) and when I loop through the rows, I only get 10 rows (the rows that are currently showed in the current page) How can I get the total number of rows in all the pages?

hope i'm clear to my quesiton

You will need to write code so that the values for the checkbox is retained during postbacks. Take a look at the following article:

Persisting checked state across pages in a DataGrid
http://www.codeproject.com/aspnet/CheckStatePersisting.asp

--Nauman.

i have read that  and i guess my question is more into grabbing the check-box checked.

have a data-grid which has many pages (10 rows per page) and when I loop through the rows, I only get 10 rows (the rows that are currently showed in the current page) How can I get the total number of rows in all the pages?

just noticed: you are using HtmlInputCheckbox rather than using <asp:CheckBox>. For HTML controls being used in dg, you will need to have runat=server attribute in order to retrieve the value on runtime. I will recommend you change Html checkbox to asp:CheckBox controls. See if it works.

--Nauman.

thats my old code i was using and i a have <asp:checkbox......

 foreach (DataGridItem item in dg.Items)
        {
            CheckBox box = (CheckBox)item["TemplateColumn"].FindControl("checkBox1");
            if (box.Checked == true)
            {
                //get the checked orderid
                object _OrderID = dataItem["un_OrderID"].Text;
            }
           
        }

 still i'm getting only check box from the current page.

Make sure that you have asp:checkbox in datagrid column and try the following code:

foreach (DataGridItem item in dg.Items)
        {
            foreach(Control c in item.Cells[CHECKBOX_COLUMN_INDEX].Controls)
            if (c.GetType() == TypeOf(CheckBox))
            {
            CheckBox box = (CheckBox)c;
            if (box.Checked == true)
            {
                //get the checked orderid
                object _OrderID = dataItem["un_OrderID"].Text;
            }
            }
        }

--Nauman.

salam ahmed,

I'm getting few errors now:

    public void View_Selected(object sender, EventArgs e)
    {
         foreach (DataGridItem item in dg.Items)
         {
             foreach (Control c in item.Cells[0].Controls)
                 if (c.GetType() == TypeOf(CheckBox))
                 {
                     CheckBox box = (CheckBox)c;
                     if (box.Checked == true)
                     {
                         //get the checked orderid
                         object _OrderID = dataItem["un_OrderID"].Text;
                     }
                 }
         }
}

errors://

Error      1      The name 'TypeOf' does not exist in the current context      

Error      2      'System.Web.UI.WebControls.CheckBox' is a 'type' but is used like a 'variable'

Error      3      The name 'dataItem' does not exist in the current contet


 <asp:DataGrid ID="dg" runat="server" AllowPaging="True" AllowSorting="True" DataSourceID="AccessDataSource1" OnPageIndexChanged="dg_PageIndexChanged" PageSize="5"
   >
            <Columns>
                <asp:TemplateColumn  HeaderText="ProductName" SortExpression="ProductName">
                    <HeaderTemplate>
                                          
<input type="checkbox" id="checkAll" onclick="CheckAll(this);" runat="server" name="checkAll">
</HeaderTemplate>
<ItemTemplate>
    <!-- <input type="checkbox" runat="server" id="EmpId1" value='<%# Bind("Discontinued") %>' checked=<%# DataBinder.Eval(Container.DataItem, "Discontinued") %> onclick="CheckChanged();" unselectable=off name="EmpId" />&nbsp; -->
    <asp:CheckBox  runat="server"  id="EmpId"  onclick="CheckChanged();"   />
                              </ItemTemplate>
                </asp:TemplateColumn>
               
            </Columns>
     
        </asp:DataGrid></td>
            </tr>
             
            <tr>
                <td style="width: 76px">
        <asp:Button ID="selBtn" OnClick="View_Selected" runat="server" Text="Show Selection" /></td>

w/s :)

One change: In datagrid, use <input type=CheckBox runat=server value='<%#DataBinder.Eval(Container.DataItem,"un_OrderID")%>'> instead of asp:CheckBox. This is needed since asp:CheckBox do not have a value attribute. You can add it on runtime but it is time consuming.

 foreach (DataGridItem item in dg.Items)
         {
             foreach (Control c in item.Cells[0].Controls)
                 if (c.GetType() == typeOf("HtmlInputCheckBox"))
                 {
                     HtmlInputCheckBox box = (HtmlInputCheckBox)c;
                     if (box.Checked == true)
                     {
                         //get the checked orderid
                         object _OrderID = box.Value;
                     }
                 }
         }

--Nauman.

>> if (c.GetType() == typeOf("HtmlInputCheckBox"))

error:
Error      1      The name 'typeOf' does not exist in the current context       

woops $$ typeOf should be typeof

--Nauman.

i realized after i post but still getting the error
 

What is the error?

--Nauman.

Error      1      Type expected       
Error      2      ;  
Error      3      Invalid expression term ')'

      
this is what the code i have, same exact code you have suggested

 foreach (DataGridItem item in dg.Items)
         {
             foreach (Control c in item.Cells[0].Controls)
                 if (c.GetType() == typeof("HtmlInputCheckBox")) <<<<ERROR HERE
                 {
                     HtmlInputCheckBox box = (HtmlInputCheckBox)c;
                     if (box.Checked == true)
                     {
                         //get the checked orderid
                         object _OrderID = box.Value;
                     }
                 }
         }

              if (c.GetType() == typeof(HtmlInputCheckBox))

Bob
 

the error is fixed but again... its reading the checkbox from the current page only and if i go back to previous page then i dont see my checkbox is checked :(