Thank you for the quick response Jason,

Nevermind, I've created a dummy FinelineDescription class to performed the
test and I've got your page running :). And after some test, I think the
problem here is still as mentioned in my first reply message. The
GridView.UpdateRow method will only update the current EditRow (the current
EditIndex row in the GridView) or those Rows which has Twoway databinding
Columns(the columns/template you created dyanmically are all one-way
databinding---just for display). So for your Gridview(dynamically created),
all the rows are in readonly/normal mode, so when you call update, the
dataobject's updatemethod did get executed, however, it passed Null into
the DataObject (ScrubDataObject).... Here is my modfied test page which
use a dummy finelineDescription class(I also use fake data for the
ScrubDataObject and its ItemDescription member...) :

============aspx==============
remain the same

======code behind=============
public partial class Common_DynamicWizardGridView : System.Web.UI.Page
{
private Wizard frame = new Wizard();
private int choice;
private DateTime week;

protected void Page_Init(object sender, EventArgs e)
{
Parameter p = new Parameter();
FinelineDescription fineline = new FinelineDescription();

//choice = int.Parse(Request.QueryString["q"]);
//week = DateTime.Parse(Request.QueryString["d"]);


choice = 3;
week = DateTime.Now;

p.Name = "data";
p.Direction = ParameterDirection.Input;
p.Type = TypeCode.Object;

frame.ID = "wzdfilterrecords";
frame.NavigationStyle.HorizontalAlign = HorizontalAlign.Left;
frame.NavigationStyle.VerticalAlign = VerticalAlign.Top;
frame.SideBarStyle.HorizontalAlign = HorizontalAlign.Left;
frame.SideBarStyle.VerticalAlign = VerticalAlign.Top;
frame.SideBarStyle.Width = Unit.Percentage(15);
frame.Width = Unit.Percentage(100);
frame.FinishButtonClick += new
WizardNavigationEventHandler(frame_FinishButtonClick);

foreach (FinelineDescription f in
FinelineDescription.getDescriptions(choice,
week))
{
WizardStep step = new WizardStep();
GridView grid = new GridView();
grid.EditIndex = 0;
ObjectDataSource ods = new
ObjectDataSource(getClassName(choice), "getRecords");

step.Title = f.Description;
step.ID = "step_" + frame.WizardSteps.Count;
step.StepType = (frame.WizardSteps.Count.Equals(0)) ?
WizardStepType.Start : WizardStepType.Step;

ods.ID = "ods_" + frame.WizardSteps.Count;
ods.SelectParameters.Add("weekBeginDate", week.ToString());
ods.SelectParameters.Add("finelineDescription", f.Description);
ods.UpdateMethod = "updateOmitStatus";
ods.UpdateParameters.Add(p);

grid.AutoGenerateColumns = false;
grid.DataSourceID = ods.ID;
grid.ID = "grid_" + frame.WizardSteps.Count;
grid.Columns.Add(addCheckBoxColumn());
grid.Columns.Add(addColumn("DistrobutionCenterID", "DC ID",
Unit.Pixel(45)));
grid.Columns.Add(addColumn("DistrobutionCenterName", "DC Name",
Unit.Percentage(25)));
grid.Columns.Add(addItemNumberTemplate("Item #",
Unit.Pixel(50)));
grid.Columns.Add(addItemDescriptionTemplate("Item Description",
Unit.Percentage(20)));
grid.Columns.Add(addColumn("StoreOnHand", "Store OH",
Unit.Pixel(55)));
grid.Columns.Add(addColumn("InTransitOnHand", "In Transit OH",
Unit.Pixel(55)));
grid.Columns.Add(addColumn("WarehouseOnHand", "Warehouse OH",
Unit.Pixel(55)));
grid.Columns.Add(addColumn("CurrentOrder", "Current Order",
Unit.Pixel(55)));
grid.Width = Unit.Percentage(100);

step.Controls.Add(ods);
step.Controls.Add(grid);
frame.WizardSteps.Add(step);
}
if (frame.WizardSteps.Count > 0)
{
WizardStep finalstep = new WizardStep();
Literal lit = new Literal();

finalstep.Title = "Commit Changes";
finalstep.ID = "step_" + frame.WizardSteps.Count;
finalstep.Controls.Add(lit);
finalstep.StepType = WizardStepType.Finish;
lit.Text = "Click Finish to commit changes and generate a
report.";

frame.WizardSteps.Add(finalstep);
hldrwizard.Controls.Add(frame);
}
else
{
Literal norecords = new Literal();
norecords.Text = string.Format("There are no {0} on
{1}.",getRecordType(choice), week.ToShortDateString());
hldrwizard.Controls.Add(norecords);
}
}
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
lbldate.Text = week.ToShortDateString();
lblrecordtype.Text = getRecordType(choice);
if (frame.WizardSteps.Count > 0)
frame.ActiveStepIndex = 0;
}
}
protected void frame_FinishButtonClick(object sender,
WizardNavigationEventArgs e)
{

Response.Write("<br/>frame_FinishButtonClick.............");
List<GridView> grids = new List<GridView>();
foreach (WizardStep step in frame.WizardSteps)
{
//not the final step
if (!step.StepType.Equals(WizardStepType.Finish))
{
GridView grid = (GridView)step.FindControl("grid_" +
frame.WizardSteps.IndexOf(step).ToString());
ObjectDataSource ods =
(ObjectDataSource)step.FindControl("ods_" +
frame.WizardSteps.IndexOf(step).ToString());

foreach (GridViewRow row in grid.Rows)
{
if (row.RowType.Equals(DataControlRowType.DataRow))
{
Response.Write("<br/>BeforeUpdate: " +
row.NamingContainer.ID + "__" + row.RowIndex);
grid.EditIndex = row.RowIndex;
grid.UpdateRow(row.RowIndex, false);

}
}
}
}
if (choice.Equals(3))
ScrubDataObject.transferToLiveData(week);
}

private string getRecordType(int choice)
{
switch (choice)
{
case 1:
return "Omit Records";
case 2:
return "Report Records";
case 3:
return "New Records";
default: return string.Empty;
}
}
private string getClassName(int choice)
{
switch (choice)
{
case 1:

I replaced all my dynamic code with the user control method you suggested.
After some research I was able to load a new instance of the user control on
each wizard step.

I set the grid.EditItem and call grid.UpdateRow. The problem is my complex
object that is data bound to the control is returning null. I need a
property from the complex obect to update the database.

I have searched the web, haven't found a working solution to my problem
currently my data grid is bound like this
<asp:GridView ID="grid" runat="server" AutoGenerateColumns="False"
DataSourceID="ods" Width="100%">
<Columns>
<asp:BoundField DataField="WeekBeginDate" HeaderText="Week Date"
SortExpression="WeekBeginDate" Visible="False" />
<asp:TemplateField HeaderText="Omit" SortExpression="OmitReport">
<EditItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server" Checked='<%#
Bind("OmitReport") %>' />
</EditItemTemplate>
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server" Checked='<%#
Bind("OmitReport") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="DistrobutionCenterID" HeaderText="DC ID"
SortExpression="DistrobutionCenterID" >
</asp:BoundField>
<asp:BoundField DataField="DistrobutionCenterName"
HeaderText="Distrobution Center" SortExpression="DistrobutionCenterName" >
</asp:BoundField>
<asp:TemplateField HeaderText="Item #"
SortExpression="ItemDescription">
<EditItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Text='<%#
((SBI.RetailLink.DataAccess.ItemDescription)((SBI.RetailLink.DataAccess.ScrubData)Container.DataItem).ItemDescription).itemNumber %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%#
((SBI.RetailLink.DataAccess.ItemDescription)((SBI.RetailLink.DataAccess.ScrubData)Container.DataItem).ItemDescription).itemNumber %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Item Description"
SortExpression="ItemDescription">
<EditItemTemplate>
<asp:TextBox ID="TextBox2" runat="server" Text='<%#
((SBI.RetailLink.DataAccess.ItemDescription)((SBI.RetailLink.DataAccess.ScrubData)Container.DataItem).ItemDescription).itemDescription %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%#
((SBI.RetailLink.DataAccess.ItemDescription)((SBI.RetailLink.DataAccess.ScrubData)Container.DataItem).ItemDescription).itemDescription %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="StoreOnHand" HeaderText="Store OH"
SortExpression="StoreOnHand" >
</asp:BoundField>
<asp:BoundField DataField="InTransitOnHand" HeaderText="In Transit
OH" SortExpression="InTransitOnHand" >
</asp:BoundField>
<asp:BoundField DataField="WarehouseOnHand" HeaderText="Warehouse
OH" SortExpression="WarehouseOnHand" >
</asp:BoundField>
<asp:BoundField DataField="CurrentOrder" HeaderText="Current Order"
SortExpression="CurrentOrder" >
</asp:BoundField>
</Columns>
</asp:GridView>

My guess is it's not binding because I'm not using the Bind keyword with
Item # and Item Description.

How would I go about 2 way binding a complex data object the GridView so I
can update the records.

Thank you for all your help with this problem. It has been very informative.

--
Jason
Programmer

I believe I'm making good progress. I have narrowed down my null object
error to refer to the ItemDescription object which is part of the my
ScrubData object.

I think this is happening because I am not explictly calling Bind in the
template or code behind. I am now trying to set the value of the item number
and item description via the RowDataBound event on the grid view and using
the ODS_Updating event to get the values from the gridview row into the ods
update parameter. I am using this code:

using SBI.RetailLink.DataAccess;
public partial class user_controls_ScrubDataView : System.Web.UI.UserControl
{
private DateTime _weekdate;
private int _choice;
private string _fineline;

public DateTime WeekDate ...
public int Choice ...
public string FineLine ...
public string TypeName
{
get
{
switch (Choice)
{
case 1: return "SBI.RetailLink.DataAccess.OmitData";
case 2: return "SBI.RetailLink.DataAccess.ReportData";
case 3: return "SBI.RetailLink.DataAccess.ScrubData";
default: return string.Empty;
}
}
}

protected void Page_Init(object sender, EventArgs e)
{
ods.TypeName = TypeName;
ods.DataObjectTypeName = TypeName;
ods.SelectParameters["weekBeginDate"].DefaultValue =
WeekDate.ToShortDateString();
ods.SelectParameters["finelineDescription"].DefaultValue = FineLine;
}
protected void ods_Updating(object sender,
ObjectDataSourceMethodEventArgs e)
{
GridViewRow row = grid.Rows[grid.EditIndex];
ItemDescription item = new ItemDescription();

item.itemNumber =
int.Parse(((TextBox)row.Cells[4].FindControl("TextBox1")).Text);
item.itemDescription =
((TextBox)row.Cells[5].FindControl("TextBox2")).Text;

switch(Choice)
{
case 1:
OmitData omit = e.InputParameters[0] as OmitData;
omit.ItemDescription = item;
e.InputParameters["data"] = omit;
break;
case 2:
ReportData rpt = e.InputParameters[0] as ReportData;
rpt.ItemDescription = item;
e.InputParameters["data"] = rpt;
break;
case 3:
ScrubData scrub = e.InputParameters[0] as ScrubData;
scrub.ItemDescription = item;
e.InputParameters["data"] = scrub;
break;
}
}
protected void grid_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType.Equals(DataControlRowType.DataRow))
{
switch (e.Row.RowState)
{
case DataControlRowState.Normal:
switch (Choice)
{
case 1:
OmitData omitnormal = e.Row.DataItem as OmitData;

((Label)e.Row.Cells[4].FindControl("Label1")).Text =
omitnormal.ItemDescription.itemNumber.ToString();

((Label)e.Row.Cells[5].FindControl("Label2")).Text =
omitnormal.ItemDescription.itemDescription;
break;
case 2:
ReportData rptnormal = e.Row.DataItem as
ReportData;

((Label)e.Row.Cells[4].FindControl("Label1")).Text =
rptnormal.ItemDescription.itemNumber.ToString();

((Label)e.Row.Cells[5].FindControl("Label2")).Text =
rptnormal.ItemDescription.itemDescription;
break;
case 3:
ScrubData scrubnormal = e.Row.DataItem as
ScrubData;

((Label)e.Row.Cells[4].FindControl("Label1")).Text =
scrubnormal.ItemDescription.itemNumber.ToString();

((Label)e.Row.Cells[5].FindControl("Label2")).Text =
scrubnormal.ItemDescription.itemDescription;
break;
}
break;
case DataControlRowState.Edit:
switch (Choice)
{
case 1:
OmitData omitedit = e.Row.DataItem as OmitData;

((TextBox)e.Row.Cells[4].FindControl("TextBox1")).Text =
omitedit.ItemDescription.itemNumber.ToString();

((TextBox)e.Row.Cells[5].FindControl("TextBox2")).Text =
omitedit.ItemDescription.itemDescription;
break;
case 2:
ReportData rptedit = e.Row.DataItem as ReportData;

((TextBox)e.Row.Cells[4].FindControl("TextBox1")).Text =
rptedit.ItemDescription.itemNumber.ToString();

((TextBox)e.Row.Cells[5].FindControl("TextBox2")).Text =
rptedit.ItemDescription.itemDescription;
break;
case 3:
ScrubData scrubedit = e.Row.DataItem as ScrubData;

((TextBox)e.Row.Cells[4].FindControl("TextBox1")).Text =
scrubedit.ItemDescription.itemNumber.ToString();

((TextBox)e.Row.Cells[5].FindControl("TextBox2")).Text =
scrubedit.ItemDescription.itemDescription;
break;
}
break;
}
}
}

public void saveRecordStatus()
{
foreach (GridViewRow row in grid.Rows)
{
grid.EditIndex = row.RowIndex;
grid.DataBind();
grid.UpdateRow(row.RowIndex, false);
}
}
}

I'm now getting an "The OrderedDictionary is readonly and cannot be
modified." error when I attempt replace the existing update parameter with
the new one. I also tried InputParameters.Clear();
InputParameters.Add("data", [obj]); but this threw the same error.

I even databind the grid after setting the Row.EditIndex so the object is in
edit mode thinking this would allow me to write parmeters.

What would cause the InputParameters to be read-only?
--
Jason
Programmer

Thank you for your continue followup.

Glad that you've made further progress, and based on code snippet and your
description, I think you're about to done the work.

As for the below things you mentioned:

==================
My guess is it's not binding because I'm not using the Bind keyword with
Item # and Item Description.
==================

Yes, you're completely right. Only the two-way databinding fields will
automatically populate the parameter values at update time. Also, the
built-in databinding approach only support "bind" keyword(or BoundField)
on one level property. And for your scenario, you "ItemDescription"
property is a property which contains other nested properties, we can not
directly use "bind" keyword or "BoundField", and I think your current
approach on using One-way databinding to display the value and use the
Updating event of objectDataSource to populate the paramter object is
reasonable.

BTW, you can also use the following expression to display nested property
value in template field(one-way):

<asp:Label ID="lblItemNumber" runat="server" Text='<%#
Eval("ItemDescription.itemNumber") %>'></asp:Label>

And as for your latest problem:

=============================
I'm now getting an "The OrderedDictionary is readonly and cannot be
modified." error when I attempt replace the existing update parameter with
the new one. I also tried InputParameters.Clear();
InputParameters.Add("data", [obj]); but this threw the same error.
================================

This is because for objectDatasource parameter, it is a class instance of
the DataTypeObject, and the ASP.NET runtime only create one INputParamter
object of this type and add it into the OrderedDictionary collection passed
in the ObjectDataSource.Updating event, and it also make the collection
"ReadOnly"(OrderedDictionary support this) so that the event subscriber can
not change the whole DataObect instance in it. However, we can still
modify the instance, and I've looked into your updating event handler, I
think you can just remove the line you assign the ItemDescription instance
back to the OrderedDictionary collection. like:


==============================
switch(Choice)
{
case 1:
OmitData omit = e.InputParameters[0] as OmitData;
omit.ItemDescription = item;
//remove the below line
//e.InputParameters["data"] = omit;
break;
case 2:
ReportData rpt = e.InputParameters[0] as ReportData;
rpt.ItemDescription = item;
//remove the below line
// e.InputParameters["data"] = rpt;
break;
case 3:
ScrubData scrub = e.InputParameters[0] as ScrubData;
scrub.ItemDescription = item;
//remove the below line
//e.InputParameters["data"] = scrub;
break;
}
==============================
#This is because e.InputParameters[0] is a reference type, any change on it
will be synchronized on the associated object instance, we do not need to
reassign it back


In addition, we can also use the GridView.RowUpdating event to add the
parameter value for "ItemDescription" property, e.g:

========================
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs
e)
{
Response.Write("<br/>GridView1_RowUpdating..................");
Response.Write("<br/>GridView+RowUpdating " + e.RowIndex);


ItemDescription id = new ItemDescription();
id.itemNumber = 6;
id.itemDescription = "Desc6";

//"ItemDescription" is the property name
e.NewValues.Add("ItemDescription", id);


}
============================
# The advantage here is that you do not need to remember the "EditIndex" in
the GridView because the event's parameter has passed in the info which
contains the current Item's Index(which is being updating...) .


Hope this also helps. If there is anything unclear on the above items or
anything else we can help, please feel free to post here.

Regards,

Steven Cheng
Microsoft Online Community Support


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Hi Jason,

How are you doing on this. Does my further suggestion helped you some? If
there is still anything else we can help, please feel free to post here.

Regards,

Steven Cheng
Microsoft Online Community Support


==================================================

When responding to posts, please "Reply to Group" via your newsreader so
that others may learn and benefit from your issue.

==================================================


This posting is provided "AS IS" with no warranties, and confers no rights.



Get Secure! www.microsoft.com/security
(This posting is provided "AS IS", with no warranties, and confers no
rights.)