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-   -   Index was out of range. Must be non-negative (http://p2p.wrox.com/showthread.php?t=69599)

raghavendra_das July 24th, 2008 08:16 AM

Index was out of range. Must be non-negative
 
HI,

I am facing some problem with image button. I found an event log error.I am not able to reproduce this when i tried,but it is logging in my event log.



Event time: 2008-05-04 08:53:57 PM -07:00
Event type: Error
Event source: Application
User:
Event ID: 0

The message '0' for application 'Application' could not be formatted using library(ies): ''. The log entry contains the following replacement strings:'***************************************** ***************************************Sunday, May 04, 2008Index was out of range. Must be non-negative and less than the size of the collection.Parameter name: index Error Guid:ac2fc6fe-0bd9-450d-8155-bbdd7479bf5b SOURCE:mscorlib STACK TRACE: at System.Collections.ArrayList.get_Item(Int32 index) at System.Web.UI.WebControls.DataGridItemCollection.g et_Item(Int32 index) at App_WebControls_Ctrl_ClientLookup.imgbtnCommClient ID_Command(Object sender, CommandEventArgs e)Please provide the cause.

Please find the below code and do needful.


protected void imgbtnCommClientID_Command(object sender, CommandEventArgs e)
 {
  if (!bIsTrackerPage)
  {
   try
   {

    objCtrl_ErrorSummary.ClearError();
    lblFindByName.CssClass = "form_item_text";
    DataSet dsClientQuotesPolicies = null;
    int nSelectedClientID = Casting.ToInt(e.CommandArgument);
    int nRowNumber = 0;
    int nPreviousRow = 0;

    if (hidSelectedRowNumber.Value != null)
    {
     nRowNumber = Casting.ToInt(hidSelectedRowNumber.Value);
    }
    if (hidPreviousRowNumber.Value != null)
    {
     nPreviousRow = Casting.ToInt(hidPreviousRowNumber.Value);
    }

    dsClientQuotesPolicies = objClientController.GetClientPoliciesandQuotes(nSe lectedClientID, 1);

    if (nPreviousRow > 0)
    {
                    if ((nPreviousRow != nRowNumber) && (grdComClientLookUp.Items.Count > (nPreviousRow - 1)))
     {
      ImageButton objimgPreviousRow = new ImageButton();
      objimgPreviousRow = (ImageButton)grdComClientLookUp.Items[nPreviousRow - 1].Controls[0].FindControl("imgbtnClientID");
      objimgPreviousRow.ImageUrl = "~/Images/icons/row_arrow_closed.gif";
      objPreviousComGrid = (DataGrid)grdComClientLookUp.Items[nPreviousRow - 1].Controls[0].FindControl("grdQuoteDetails");
      objPreviousComGrid.Visible = false;
     }
    }
                if ((nRowNumber > 0) && (grdComClientLookUp.Items.Count > (nRowNumber-1)))
                {
                    ImageButton objimgPresentRow = new ImageButton();
                    objimgPresentRow = (ImageButton)grdComClientLookUp.Items[nRowNumber - 1].Controls[0].FindControl("imgbtnClientID");
                    objimgPresentRow.ImageUrl = "~/Images/icons/row_arrow_open.gif";
                    objComClientDetails = (DataGrid)grdComClientLookUp.Items[nRowNumber - 1].Controls[0].FindControl("grdQuoteDetails");


    if (!UISupport.IsEmptyDataSet(dsClientQuotesPolicies) )
    {
     if (nPreviousRow != nRowNumber)
     {
      objComClientDetails.Visible = true;
      objComClientDetails.DataSource = dsClientQuotesPolicies;
      objComClientDetails.DataBind();
     }
    }
    else
    {
     objimgPresentRow.ImageUrl = "~/Images/icons/row_arrow_closed.gif";
    }
    if (nPreviousRow == nRowNumber && !UISupport.IsEmptyDataSet(dsClientQuotesPolicies))
    {
     if (objComClientDetails.Visible == true)
     {
      objComClientDetails.Visible = false;
      objimgPresentRow.ImageUrl = "~/Images/icons/row_arrow_closed.gif";
     }
     else
     {
      objComClientDetails.Visible = true;
      objimgPresentRow.ImageUrl = "~/Images/icons/row_arrow_open.gif";
     }
    }
            }
                //System.Diagnostics.Process obj = new System.Diagnostics.Process()

                if ((nRowNumber != -1) && (nRowNumber != nPreviousRow) && (grdComClientLookUp.Items.Count > (nRowNumber - 1)))
                {
                    grdComClientLookUp.Items[nRowNumber-1].CssClass = "GridSelectedStyle";
                    if ((nPreviousRow != -1) && (grdComClientLookUp.Items.Count > (nPreviousRow - 1)))
                    {
                        if (grdComClientLookUp.Items[nPreviousRow - 1].ItemType == ListItemType.AlternatingItem)
                            grdComClientLookUp.Items[nPreviousRow - 1].CssClass = "GridRowSelected";
                        else
                            grdComClientLookUp.Items[nPreviousRow - 1].CssClass = "GridRowUnselected";
     }
    }
   }
   catch (Exception ex)
   {
    UIExceptionManager.LogAndRedirect(ex, false, Context.Items["RequestID"].ToString());
   }
  }
 }

Thanks





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