PrintPreviewControl and HTML - C# Discussion Boards

Luc Pattyn11-Jun-11 3:53

11-Jun-11 3:53

I think I got one as a present in the thread below. Consider it yours if you want it.

Big Grin | :-D

Luc Pattyn [My Articles] Nil Volentibus Arduum

The quality and detail of your question reflects on the effectiveness of the help you are likely to get.
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PIEBALDconsult11-Jun-11 6:09

PIEBALDconsult

11-Jun-11 6:09

Which thread? And should I install HP COBOL for OpenVMS Alpha
[^]? (Nah.)

Luc Pattyn11-Jun-11 6:27

11-Jun-11 6:27

The one right below this one, titled "PrintPreviewControl and HTML", holding a "contribution" by the same author.
And yes, if you haven't already.

Smile | :)

Luc Pattyn [My Articles] Nil Volentibus Arduum

PIEBALDconsult11-Jun-11 14:03

PIEBALDconsult

11-Jun-11 14:03

OIC

Not Active11-Jun-11 5:29

Not Active

11-Jun-11 5:29

I have no idea what you are talking about or why you are asking a question about COBOL in a C# forum. However, if you are trying to work with COBOL and .net maybe this will help; http://www.netcobol.com/products/Fujitsu-NetCOBOL-for-.NET/overview[^]

I know the language. I've read a book. - _Madmatt

MumbleB11-Jun-11 6:53

MumbleB

11-Jun-11 6:53

I want to creat a .net app reading "messages" or shall I say files defined by a cobol-copy book format/layout. Do this I want to reference the copy-book and pass the message to it for unmarshalling and then writing it out to another message in yet another cobol copy-book format. Like creating a middleware app. If I have to transform the copy book and write it out to as a file format, it could take ages as they are huge layouts and would be easier just to reference the copy-book. Hope this explains!

Excellence is doing ordinary things extraordinarily well.

PrintPreviewControl and HTML

DaveyM6911-Jun-11 10:19

DaveyM69

11-Jun-11 10:19

A google search for cobol copy book .net[^] shows some promising results.

Dave

Binging is like googling, it just feels dirtier.
Please take your VB.NET out of our nice case sensitive forum.
Astonish us. Be exceptional. (Pete O'Hanlon)

BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)

dSolariuM10-Jun-11 23:36

dSolariuM

10-Jun-11 23:36

Hi all,
I have some html files (Custom Reports) and I want to show the print preview of them to the user.I don't want to use IE print preview or web browser because they are not embedded in my application and I can not control them the way I want. I was wondering if there is a way to preview a html file in PrintPreviewControl (or any other components like that)?
Please help me.
thank you.

Every new thing you learn,Gives you a new personality.

Luc Pattyn11-Jun-11 0:11

11-Jun-11 0:11

Assuming your app is a WinForms app, I see three possibilities:

1.
Use a WebBrowser control and have it navigate to your HTML document.

2.
Use any external app you choose (MS Word if you must), and make it show its main form inside your app, by calling SetParent (using P/Invoke).

3.
create your own UserControl, that parses and interprets HTML; it is quite a job, probably not worth the effort it would take.

Smile | :)

Luc Pattyn [My Articles] Nil Volentibus Arduum

MumbleB11-Jun-11 1:19

MumbleB

11-Jun-11 1:19

I tend to agree. I have numerous copy-books and some of them are pretty big. Take this one for instance:

<br />
01  X30002-FUNCTION-SEG.                                          		<br />
	05  X30002-MSG-LL                             PIC S9(04) COMP. 	Message length is variable depending on number of items in the set<br />
	05  X30002-FUNC-TAG                           PIC  X(08).                                      	ZPE0805F<br />
	05  X30002-VERSION                            PIC  9(02).          	Version Number. Must be set to 00<br />
	05  X30002-FUNCTION-INPUT.                                		<br />
        10  X30002-HEADER.                                    		<br />
            15  X30002-BATCH-TYPE                 PIC  X(03).       	P   = Payment batch<br />
																		T   = Transfer batch within a customers own profile<br />
																		PS  = Purchase of Services batch<br />
																		RTI = Real-time Clearing inward batch<br />
																		RTO = Real-time Clearing outward batch<br />
            15  X30002-SET-TYPE                   PIC  X(01).       	C = Consolidated batch. 1 Debit upto 50 credits <br />
																		I = Itemised batch. Upto 25 Dr/CR items<br />
            15  X30002-CUSTOMER-ID                PIC  X(20).     	A valid customer identifier from the channel. Not Validated<br />
            15  X30002-BATCH-ID                   PIC  X(20).     	A unique batch identifier. Not Validated<br />
            15  X30002-SET-NUMBER                 PIC  9(05).     	The number of the set contained within the batch. Start at 1 and increment for each set within the batch<br />
            15  X30002-NOMINATED-POST-IND         PIC  X(01).     	R = Real-time post<br />
																	  = defaults to Real-Time<br />
            15  X30002-HOMING-POST-IND            PIC  X(01).     	F = Force post<br />
																	R = Real-time post<br />
																	  = defaults to Real-Time where applicable<br />
            15  X30002-CHECK-AVAIL-BAL-IND        PIC  X(01).     	Set to Y if available balance must be checked prior to posting	<br />
            15  X30002-TRAN-CODE-IND              PIC  X(01).     	C = Channel<br />
																	D = Default <br />
																	  = Defaults to Channel <br />
            15  X30002-NO-OF-TXNS                 PIC  9(03).     	The number of transactions contained in the homing table<br />
            15  FILLER                            PIC  9(08).     	<br />
        10  X30002-REVERSAL-DETAILS.                        		<br />
            15  X30002-NOM-REV-PROD-CODE          PIC  X(03).     	Reversal Product Code eg DDA / TCS<br />
            15  X30002-NOM-REV-ACCOUNT            PIC  X(23).     	Reversal Account Number. Right justified, zero filled<br />
            15  X30002-REVERSAL-TRAN-CODE         PIC  X(05).     	Reversal Tran Code, can be supplied or resolved by PE<br />
            15  X30002-MATCH-REVERSAL-IND         PIC  X(01).     	Y if matched reversals are required. If set the transaction does not appear on the statement<br />
        10  X30002-NOMINATED-DETAILS.                       	Details of the FNB account to be debited	<br />
            15  X30002-NOM-CO-ID                  PIC  9(05).     	FNB company identifier<br />
            15  X30002-NOM-PROD-CODE              PIC  X(03).     	Nominated Product code eg DDA / TCS / MLS / GLB<br />
            15  X30002-NOM-ACCOUNT-NO             PIC  X(23).     	Account Number to be debited. Right justified, zero filled<br />
            15  X30002-NOM-ACCOUNT-NAME           PIC  X(30).     	Account Name. Not Validated<br />
            15  X30002-NOM-REF                    PIC  X(20).     	Mandatory when batch is Consolidated	 <br />
            15  X30002-NOM-DESCR                  PIC  X(47).     	Used when batch is Consolidated If not supplied the default description for the transaction code will be applied 	 <br />
            15  X30002-NOM-AMOUNT                 PIC  9(15)V99.  	Mandatory when batch is Consolidated Right justified, zero filled, 2 decimal places<br />
            15  X30002-NOM-TRAN-CODE              PIC  X(05).     	If not supplied the transaction code will be resolved by the PE	 <br />
            15  X30002-NOM-SERIAL-NO              PIC  9(10).     	Only applicable to IDS, optional cheque serial number	 <br />
        10  FILLER                                PIC  X(26).     		<br />
        10  X30002-GL-DETAILS.                              	Mandatory when CONSOLIDATED and SET-NUMBER is > 1            	<br />
            15  X30002-GL-AMOUNT                  PIC  9(15)V99.  	Right justified, zero filled, 2 decimal places	<br />
            15  X30002-GL-SIGN                    PIC  X(01).     	D or C	<br />
        10  FILLER                                PIC  X(01).     		<br />
        10  X30002-AMOUNT-CURRENCY                PIC  X(03).     	e.g. ZAR; ZMK; NAD; LSL; SZL; BWP   	<br />
        10  FILLER                                PIC  X(50).     		<br />
        10  X30002-HOMING-DETAILS OCCURS 50.                		<br />
            15  X30002-HOM-CO-ID                  PIC  9(05).     	A Valid FNB company identifier.<br />
            15  X30002-HOM-PROD-CODE              PIC  X(03).     	Valid values <br />
																	TPT – must supply account type and branch when using this option.  The product code is then derived <br />
																	DDA<br />
																	TOA <br />
																	TCS; or Valid Card Product eg ZFN<br />
																	ILP; MLS; PLS;<br />
																	NPS<br />
																	REC<br />
																	OBP<br />
																	WES<br />
																	EWA<br />
																	GLB<br />
            15  X30002-HOM-ACCT-TYPE              PIC  9(01).     	1 = Current Acc <br />
																	2 = Savings Acc <br />
																	3 = Transmission Acc <br />
																	4 = Bond Acc        <br />
																	6 = Subscription Share<br />
            15  X30002-HOM-BRANCH                 PIC  9(06).     	Sort Code<br />
            15  X30002-HOM-ACCOUNT-NO             PIC  X(23).     	Right justified, zero filled<br />
            15  X30002-HOM-BUDGET-NO              PIC  9(05).     	Only used for Cardes products  	<br />
            15  X30002-HOM-ACCOUNT-NAME           PIC  X(30).     	Account Name. Not validated<br />
            15  X30002-HOM-AMOUNT                 PIC  9(15)V99.  	Right justified, zero filled, 2 decimal places<br />
            15  X30002-HOM-REF                    PIC  X(20).     	Reference<br />
            15  X30002-HOM-DESCR                  PIC  X(47).     	If not supplied the default description for the transaction code will be applied	<br />
            15  X30002-HOM-TRAN-CODE              PIC  X(05).     	If not supplied the transaction code will be resolved by the PE	<br />
            15  X30002-HOM-REVERSAL-DESCR         PIC  X(47).    	Supply if a different description is required other than the homing description	<br />
            15  X30002-NOM-REFERENCE              PIC  X(20).    	Mandatory when batch is Itemised	<br />
            15  X30002-NOM-DESCRIPTION            PIC  X(47).    	Used when batch is Itemised. If not supplied the default description for the transaction code will be applied 	<br />

This is huge and writing my own class to parse the message to is probably a waist of time. I'll see if I can come up with a better solution or find something and post back.

Thanks Luc

Excellence is doing ordinary things extraordinarily well.

dSolariuM12-Jun-11 2:32

dSolariuM

12-Jun-11 2:32

I'll wait.thanks

Every new thing you learn,Gives you a new personality.

dSolariuM12-Jun-11 2:33

dSolariuM

12-Jun-11 2:33

Can you explain more about the second one?(Maybe an article or something?)

Every new thing you learn,Gives you a new personality.

Luc Pattyn12-Jun-11 2:55

12-Jun-11 2:55

something along these lines would show your HTML editor inside your panel "myPanel":

Process p=Process.Start("myHtmlEditor", "someFile.html");
p.WaitForInputIdle();
IntPtr hWndChild=p.MainWindowHandle();
IntPtr hWndParent=myPanel.Handle;
SetParent(hWndChild, hWndParent);

Adapt where necessary!

And the prototype for the native Win32 function would be:

[DllImport("user32.dll", SetLastError = true)]
static extern IntPtr SetParent(IntPtr hWndChild, IntPtr hWndNewParent);

Luc Pattyn [My Articles] Nil Volentibus Arduum

BobJanova12-Jun-11 22:11

Suggestions On How To Refactor This

12-Jun-11 22:11

You have significantly less control over starting another app than you do over a web browser OCX, which the OP says isn't enough, so I doubt this solution will fulfil his needs. The best third party app for rendering HTML – a browser – is already available as a control in .Net.

Kevin Marois10-Jun-11 14:02

Kevin Marois

10-Jun-11 14:02

I'm working on a WPF app using MVVM with Telerik controls. I have a Telerik RadTreeView loaded with clients and projects:

<telerik:RadTreeView Width="200" 
                     HorizontalAlignment="Left"
                     ItemsSource="{Binding Path=Clients}"
                     SelectedItem="{Binding SelectedItem, Mode=TwoWay}"/>

Here are the 2 data models:
http://www.maroisconsulting.com/stuff/models.png[^]

When a node is clicked, the SelectedItem's Get calls nodeSelected. Here's where the fun begins.

The nodeSelected methods is responsible for
1) Extracting the DataModel (either the ClientModel or ProjectModel) from the selected node
2) Creating the view (ClientView or ProjectView)
3) Creating the viewmodel (ClientViewModel or ProjectViewModel)
4) Adding a tab to a RadTabControl and assigning the view to it.

While this all works fine, the code doesn't feel right. In the code below, you'll see that both the Client and Project sections have alot in common. I'd like to get some suggestions on refactoring it (Sorry it's a bit long):

private void nodeSelected()
{
    if (SelectedItem == null)
        return;

    string selectedObjectName = SelectedItem.GetType().Name.Trim().ToLower();

    switch (selectedObjectName)
    {
        #region Client
        case "clientmodel":

            // Get the client model from the selected tree node
            ClientModel clientModel = SelectedItem as ClientModel;

            // Check to see if a view with the client's Id is already open in a tab
            TabInfo clientTabInfo = getTabInfo(AppViews.Client, clientModel.ClientId);

            if (clientTabInfo == null)
            {
                string clientName = "Client - " + clientModel.ClientName;
                string clientImage = "/Falcon;component/Media/Graphics/customer_48x48.png";
                string clientIcon = "/Falcon;component/Media/Graphics/customer_16x16.png";

                // Create the client view model, passing in the client model
                ClientViewModel clientViewModel = new ClientViewModel(clientModel)
                {
                    HeaderTitle = clientName,
                    HeaderImage = clientImage
                };

                // Create the client view
                ClientView clientView = new ClientView
                { 
                    /* Assign the client view model to its view */
                    DataContext = clientViewModel };

                // Create the tab info object and add it to the list
                TabInfo info = new TabInfo
                {
                    ItemId = clientModel.ClientId,
                    ViewType = AppViews.Client
                };

                // Assign the Client's view and the tab info object to the tab
                // Create the new tab
                RadTabItem tab = addTab(clientName, clientIcon);
                tab.Content = clientView;
                tab.Tag = info;

                // Add the tab to the Tabs collection and select it
                Tabs.Add(tab);
                SelectedTab = tab;
            }
            else
            {
                // Actvate the tab
                activateTab(AppViews.Client, clientModel.ClientId);
            }
            break;

        #endregion

        #region Project
        case "projectmodel":

            // Get the client model from the selected tree node
            ProjectModel ProjectModel = SelectedItem as ProjectModel;

            // Check to see if a view with the Project's Id is already open in a tab
            TabInfo projectTabInfo = getTabInfo(AppViews.Project, ProjectModel.ProjectId);

            if (projectTabInfo == null)
            {
                string projectName = "Project - " + ProjectModel.Caption;
                string projectImage = "/Falcon;component/Media/Graphics/project_48x48.png";
                string projectIcon = "/Falcon;component/Media/Graphics/project_16x16.png";

                // Create the Project view model, passing in the Project model
                ProjectViewModel ProjectViewModel = new ProjectViewModel(ProjectModel)
                {
                    HeaderTitle = projectName,
                    HeaderImage = projectImage
                };

                // Create the Project view
                ProjectView ProjectView = new ProjectView();

                // Assign the Project view model to its view
                ProjectView.DataContext = ProjectViewModel;

                // Create the tab info object and add it to the list
                TabInfo info = new TabInfo
                {
                    ItemId = ProjectModel.ProjectId,
                    ViewType = AppViews.Project
                };

                // Create the new tab
                RadTabItem tab = addTab(projectName, projectIcon);
                tab.Content = ProjectView;
                tab.Tag = info;

                // Add the tab to the Tabs collection and select it
                Tabs.Add(tab);
                //SelectedTabIndex = Tabs.Count - 1;
                SelectedTab = tab;
            }
            else
            {
                // Actvate the tab
                activateTab(AppViews.Project, ProjectModel.ProjectId);
            }
            break;
        #endregion
    }

}

Everything makes sense in someone's mind

Re: Suggestions On How To Refactor This

BobJanova12-Jun-11 23:44

Saving changed data from a BindingSource

12-Jun-11 23:44

That's not too bad. It looks similar but actually most of it is not identical and therefore isn't an immediate candidate for refactoring. The only thing that is is creating or activating a tab, which is about 10 lines, which isn't critical.

However, the type switching by name is ugly. You should have ClientModel and ProjectModel both implement an interface (let's call it IModelInfoProvider) that exposes what you need to determine tab identity (an AppViews enum, ModelType, and an ID). You could argue that they should go in the view model, so if you have two way linkage you could put them there and expose a base view model through the interface, or make the UI control have ViewModels not Models as its item list. Then you can do:

IModelInfoProvider item = (IModelInfoProvider)SelectedItem;

TabInfo tabInfo = getTabInfo(item.ViewType, item.ID);
if(tabInfo == null){
 TabInfo info = new TabInfo
 {
  ItemId = item.ID,
  ViewType = item.ViewType
 };

 IView view = ...;
 
 RadTabItem tab = addTab(view.DisplayName, view.IconPath);
 tab.Content = view;
 tab.Tag = info;

 SelectedTab = tab;
} else activateTab(tabInfo.Tab); // Why look it up twice? you already assigned it

Now, what goes in ... is essentially 'make your MV and View'. Depending on how strict on layering you're feeling you can either expose that as an interface method as well, or create a factory to which you can pass a model and it will construct views of the appropriate type. In the latter case you will still have to type switch, inside the factory code – please use is if you have to type switch, not string type names!

tekturtle10-Jun-11 4:26

tekturtle

10-Jun-11 4:26

I have a C# 2010 Windows Forms project that accesses (primarily) two tables in a SQL Server 2008 database. Each table is accessed in two modes: active accounts and cancelled accounts, and both have to be visible and editable at the same time (user requirement). The way I have it set up now is to have one DataSet, one TableAdapterManager, two TableAdapters (one for each table) and four BindingSources (two for each table adapter; one for active, one for cancelled). I have FillBy/GetDataBy methods setup for each TableAdapter that fill my BindingSources correctly. This is the code I’m using for filling them:

htcActiveBindingSource.DataSource = this.htcTableAdapter.ActiveGetDataBy(gpn);
htcCancelledBindingSource.DataSource = this.htcTableAdapter.CancelledGetDataBy(gpn);
vetActiveBindingSource.DataSource = this.vetTableAdapter.ActiveGetDataBy(gpn);
vetCancelledBindingSource.DataSource = this.vetTableAdapter.CancelledGetDataBy(gpn);

Everything works exactly as I was hoping, except for saving. The code I was using for saving is this:

this.Validate();
this.htcActiveBindingSource.EndEdit();
this.htcCancelledBindingSource.EndEdit();
this.vetActiveBindingSource.EndEdit();
this.vetCancelledBindingSource.EndEdit();
this.tableAdapterManager.UpdateAll(this.cramdDataSet);

When I step through in debug mode, the current row in the BindingSource knows that it has been modified after the EndEdits run. However, when it executes the UpdateAll, nothing happens in the database. Playing around with it, I figured out that if I fill the TableAdapter directly, like this:

this.htcTableAdapter.ActiveFillBy(this.cramdDataSet.htc, gpn);

then it works, but only for just active or just cancelled, not both at the same time (it sets both binding sources to the same data). Is there some way to get the data from the independent BindingSources back into the TableAdapter? Or am I going to be forced to create a second table adapter for the cancelled versions of each table? Am I going about this in a completely retarded way? If so, please enlighten me! (As much as I’d like to make my code work, I’m not opposed to rewriting big chunks to do it the “right” way.) I’m also going to need to insert new records created from the form, but I haven’t gotten to that point yet since my basic save is not even working.

Thanks in advance!

BobJanova10-Jun-11 6:05

10-Jun-11 6:05

Can you show ActiveFillBy and ActiveGetDataBy? I suspect that you are returning a binding source on an in-memory copy of the data and the link back to the database is being lost.

tekturtle10-Jun-11 10:04

tekturtle

10-Jun-11 10:04

I'm not sure what you mean by "show ActiveFillBy and ActiveGetDataBy". They are queries attached to the htcTableAdapter in the dataset designer. However, I stumbled upon a way to make it work, but I'm not sure exactly why it works. If I alter the code like this before the UpdateAll, then it works:

this.htcActiveBindingSource.EndEdit();
this.htcTableAdapter.Update((cramdDataSet.htcRow)((DataRowView)this.htcActiveBindingSource.Current).Row);

I get what the update is doing: taking the current row from the BindingSource and applying it back to the TableAdapter. What I don't get is the parameter value (starting w/ the first double parentheses). I found that online somewhere a while ago, but I don't understand what it is doing. Is there a better way to pass the current row into the update? More importantly, is there a way to pass the entire set of rows from the binding source? The vetActiveBindingSource and vetCancelledBindingSource can have multiple records in them that can all be edited. Since one overload of the BindingSource.Update method can take a collection of rows, I'd rather do it like that, rather than looping thru all the records and passing them in one at a time. I looked thru the BindingSource properties and methods but didn't see anything that looked promising.

BobJanova12-Jun-11 22:14

12-Jun-11 22:14

Ah, I thought those were methods you'd written. I'm afraid I'm not familiar enough with this piece of Microsoft magic to offer detailed advice. (Anything with auto-generated code I try to avoid using; I like to know what my program is doing! The form designer I will accept as that code is just layout and not function, but data binding templates and the like are too magic for my taste.)

What that statement seems to be doing is casting the binding source to a view and its current row back to the original schema. I would expect you to be able to update through the view, so perhaps there is some option you missed when creating the binding?

Re: Saving changed data from a BindingSource [modified]

tekturtle15-Jun-11 11:57

tekturtle

15-Jun-11 11:57

I'm beginning to think the "non-magic" method is the way to go. Even though I got the save working, I keep running into other obstacles trying to make this do what I want. Can you give me some advice on rewriting this manually? Some sample code doing something similar would be great, or a site with a tutorial on setting it up. As long as it doesn't involve a datagridview... I've read several tutorial sites and they seem to only deal with that and it won't work for what I'm trying to do (and I haven't figured out how to convert what they say for the DGV into separate controls).

BobJanova15-Jun-11 13:20