Forums Retired Products and Controls
Your Privacy Matters: We use our own and third-party cookies to improve your experience on our website. By continuing to use the website we understand that you accept their use. Cookie Policy
Close
Denis
55
Find html controls in row. findcontrol()
posted

 I have a templated column with a checkbox in it:

     <igtbl:TemplatedColumn Key="CamBan" AllowUpdate="Yes" Width="5.55%">
              <CellTemplate>
                         <asp:CheckBox ID="cbCamBan" runat="server" Text="Ban" />
             </CellTemplate>
      </igtbl:TemplatedColumn> 

 I could have used column with checkbox cell type, but you cannot add text to those checkboxes and these checkboxes are in multiple bands and i'm hiding the headers.

 So i have gone with a templated column with an asp control in it.  Finding if this control was checked on a server-side postback was a little difficult, but was accomplished with the following code:


        Dim tempCol As Infragistics.WebUI.UltraWebGrid.TemplatedColumn
        Dim checkBox As System.Web.UI.WebControls.CheckBox
        Dim cObjs As ArrayList
        Dim cItems As Infragistics.WebUI.UltraWebGrid.CellItem

        tempCol = UltraWebGrid1.Rows(1).Rows(0).Cells(9).Column
        cObjs = tempCol.CellItems

        For Each item As Object In cObjs
            cItems = CType(item, Infragistics.WebUI.UltraWebGrid.CellItem)
            checkBox = cItems.FindControl("cbCamBan")
            If checkBox IsNot Nothing Then
                Dim cell As Infragistics.WebUI.UltraWebGrid.UltraGridCell = cItems.Cell
                If checkBox.Checked Then
                    '    Response.Write(cell.Row.Cells(0).Value & " ")
                Else
                    '    Do something else

                End If

           End If
        Next

i have to access the cellitems that belong to the templated column.  Then i can use the findControl() method.  I would like to loop through the rows and use the findcontrol on a ultragridcell object.

eg. 

    For each dr as ultragridrow in grid1.rows

        dr.cells(0).item(0).findControl

        '  or something like that.

    next 

 Help? thanks. :)

 


     

  • 175
    posted

    A generic findcontrol function could be useful;

    function findControl(tagName, controlId) {
    var aControls = document.getElementsByTagName(tagName);
    if (aControls==null) return null;
    for (var i = 0; i < aControls.length; i++) {
    var ctl = aControlsIdea;
    if (ctl && ctl.id) {
     var subId = ctl.id.substring(ctl.id.length - controlId.length);
    if (subId == controlId) {
    return ctl;
    }
    }
    }
    return null;
    }

  • 1171
    posted

    The cells don't have a link back to the CellItems collection because they don't really know anything about the grid's templating. You should be able to use their index as an index into the CellItems collection if you want to iterate through the rows rather than through the cell items. 

    Helen

  • 294
    posted

     If it suits your situation, UpdateRowBatch is probably the easiest way to go (example assumes checkbox is in cell 1):

    protected void ucgrdSearchResults_UpdateRowBatch(object sender, Infragistics.WebUI.UltraWebGrid.RowEventArgs e)
            {

                //Make sure the user selected the row.
                if (e.Row.Cells[1].Value.ToString() == "true")
                {

                  //Do something

               }

       }

     

    This will only find data that has changed....