removing xml attributes [modified] - C# Discussion Boards

How to write a C# dll to be called in Delphi7

luvcloud2-Oct-06 17:17

2-Oct-06 17:17

Hi,

I'm new to C#. Anyone know how can i create a C# dll which can be called by my delphi program?
What I did so far was create a new Class Library project. My codes are as below:

namespace MyTestDll<br />
{<br />
    public class MainTest<br />
    {<br />
       public MainTest()<br />
       {    <br />
       }<br />
<br />
        public void TestCall()<br />
        {<br />
           MessageBox.Show("Method is called");<br />
        }     <br />
    }<br />
}

It was then compiled as MyTestDll.dll
In Delphi, i tried using the usual LoadLibrary() and GetProcAddress() function to call TestCall function (in MyTestDll.dll), but it didn't work. Anyone can help me? Thanks!

Re: How to write a C# dll to be called in Delphi7

Nader Elshehabi2-Oct-06 18:28

Nader Elshehabi

2-Oct-06 18:28

Hello

.Net code -exe or dll- is not actually machine code as normal non .net compilers would generate. It's rather an IL -Intermediate Language- that is compiled JIT -Just In Time- in excution. So if you don't use Delphi .Net you won't be able to make calls to a managed .Net dll. Well, not directly.

Regards

Re: How to write a C# dll to be called in Delphi7

luvcloud2-Oct-06 18:34

luvcloud

2-Oct-06 18:34

I cannot use Delphi .Net as my current program is written in Delphi 7. How do i call it 'indirectly' then?

Re: How to write a C# dll to be called in Delphi7

Nader Elshehabi2-Oct-06 19:07

Nader Elshehabi

2-Oct-06 19:07

One suggestion is to make you C# code another exe program, then communicate between the two programs some way. Example:
1- Make C# a console program and send your parameters as commandline arguments.
2- Make you C# a Windows service or a formless exe file and communicate using sockets for example.

Well, I hope this works! Otherwise you'd have to use C++ rather than C#.

Regards

Re: How to write a C# dll to be called in Delphi7

Tim Wri2-Oct-06 23:05

Tim Wri

2-Oct-06 23:05

This site has a set of Delphi components that help in calling .NET assemblies. I've used them and they worked great: http://www.managed-vcl.com[^].

Crystal Reports single field

StyrofoamSUV2-Oct-06 17:17

StyrofoamSUV

2-Oct-06 17:17

Hey all. I am new to Crystal Reports and was wondering of someone could give me a hand involving adding single data fields to a report.

What I mean by this is, I have a DataSet that contains all the fields I want per row, however, I also want a generic field that does not pertain to the row.

For example, I have a DataSet whose Table name is "Person" and contains the entities, Name, Age, Sex, etc... What I want to add to the report, aside from the rows containing Name, Age, and Sex, is a data field at the top that is user-defined. Perhaps I want to put "Goo goo ga ga" at the top of the report. Instead of having to add an entity to the DataSet, can I define a field in the report, place the field on the report somewhere, and edit it via my code?

I hope you understand what I mean.

Thanks!
-Josh

Re: Crystal Reports single field

StyrofoamSUV4-Oct-06 7:55

StyrofoamSUV

4-Oct-06 7:55

Figured out how to do this incase anyone is interested.

1) Add a Text object to your report by right-clicking on the report and selecting Insert->Text Object
2) Set the Name of the object in the Properties window
3) Note the Page Header Section the object resides in
4) CrystalDecisions.CrystalReports.Engine.TextObject myObject = (CrystalDecisions.CrystalReports.Engine.TextObject)theReportClassInstance.theSectionNumber.ReportObjects[ "theObjectName" ];
myObject.Text ="whatever i want";

cheers

removing xml attributes [modified]

lagumaster2-Oct-06 16:16

lagumaster

2-Oct-06 16:16

hi everyone,

i want to get all the attributes of an element and put them under that element. but i don't know why at some elements their attributes are displayed beside it and i want to get rid of the namespace too. see the code below and tell me what's wrong with it.

private void populateTreeView(XmlNode node2Iterate, TreeNode currNode)
{
XmlNode xNode;
TreeNode tNode;
XmlNodeList nodeList;
TreeNode attrNode = new TreeNode();

if (node2Iterate.HasChildNodes)
{
nodeList = node2Iterate.ChildNodes;
for(int i = 0; i<=nodeList.Count - 1; i++)
{
TreeNode tn;
xNode = node2Iterate.ChildNodes[i];
tn = new TreeNode("<" + xNode.Name + ">");

currNode.Nodes.Add(tn);
tNode = currNode.Nodes[i];
populateTreeView(xNode, tNode);

if(node2Iterate.ChildNodes[i].Attributes != null)
{
foreach(XmlAttribute attr in node2Iterate.ChildNodes[i].Attributes)
{
string attrs = null;
attrs = "<" + attr.Name + "=\"" + attr.Value + "\"" +">";
currNode.Nodes[i].Nodes.Add(attrs);
}
}
}
}
else
{
currNode.Text = (node2Iterate.OuterXml).Trim();
}
}

the output looks like this on a treeView control:
-<ns:element attr1="a" attr2="b" xmlns:ns="http://testing.com">
-<attr1="a">
-<attr2="b">

thanks for any help!

-- modified at 23:41 Monday 2nd October, 2006

Re: removing xml attributes

Stefan Troschuetz2-Oct-06 21:21

Stefan Troschuetz

2-Oct-06 21:21

I think the problem is the following line:

currNode.Text = (node2Iterate.OuterXml).Trim();

Use the LocalName property instead of OuterXml.

"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook

www.troschuetz.de

Re: removing xml attributes

lagumaster3-Oct-06 17:23

lagumaster

3-Oct-06 17:23

thanks alot for your reply, that fixed my problem Big Grin | :-D

How should I implement throttling an application's bandwidth using c#? [modified]

suchnight2-Oct-06 15:31

suchnight

2-Oct-06 15:31

As I using Adobe Flash as a part of my web application UI,
I really want to simulate somekind of bandwidth when I develop Flash and Server on one PC.
For that ,
I would like to write a windows form to throttle and monitor Flash's(or other appliaction's) bandwidth.

But I dont know how to implement this idea using C# just like Webspeed Simulator(http://www.xat.com/wo/index.html)
Poke tongue | ;-P

### Thanks, Nader Elshehabi Rose | [Rose]

###
But in some condition, I publish my project as a stand-alone one(a .exe file) or writing C# windows form chat client.

-- modified at 22:25 Monday 2nd October, 2006

Re: How should I implement throttling an application's bandwidth using c#?

Nader Elshehabi2-Oct-06 16:00

Nader Elshehabi

2-Oct-06 16:00

Hello

You can do something like a bottle-neck for your WebBrowser. Here is my suggestion:

1- Make a windows Form.
2- Inherit a class from WebBrowser class. Lets calld in WebSim.
3- In WebSim, Handle the Navigating event, and get the new URL yourself.
4- Get the document stream, and load the document yourself. Use Thread.Sleep() method to delay loading ebtween requests according to the speed you desire.
5- Display the document, either as the usual way -part by art as loaded- or when it's fully loaded.

NB.
I haven't tested the above suggestion thoroughly, so it might not work. Otherwise you'd have to write your browser from the scratch using HTTP requests.

Regards

How to print Form ?

hdv2122-Oct-06 11:15

hdv212

2-Oct-06 11:15

hi
i use VS2005 .
i have a form that has a Panel and many labels,Textboxs Controls .. in runtime, User fill this Textbox and print it, But how to printpreview and rint this form correctly ?? (because many controls in Panel ,The panel scrollbar appear in Printpreviewdialog(in one article in codeproject)).
thanks ..

Re: How to print Form ?

Nader Elshehabi2-Oct-06 12:46

Nader Elshehabi

2-Oct-06 12:46

Hello

In CodeProject there are two printing articles that I know of capable of doing this.

One of them I wrote[^], and might cause the problem you are talking about. In this case -and until I update it and fix this issue-, you have to print each control alone.

The other is this article[^], which I think solves your problem, but loses the visual styles.

Regards

Re: How to print Form ?

S. Senthil Kumar2-Oct-06 23:50

S. Senthil Kumar

2-Oct-06 23:50

Does this blogpost[^] help?

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Re: How to print Form ?

hdv2123-Oct-06 1:19

hdv212

3-Oct-06 1:19

hi S. Senthil Kumar

i could not access this component from your link ..

http://blogs.msdn.com/brada/archive/2006/09/23/768683.aspx

Please give me another link for download this component.

Re: How to print Form ?

S. Senthil Kumar3-Oct-06 1:25

S. Senthil Kumar

3-Oct-06 1:25

This[^] should work fine.

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Design issue with unexpected requirement [modified]

Alaric_2-Oct-06 10:53

Alaric_

2-Oct-06 10:53

(first.....finally. For some reason the forum was making me re-verify my email address. Took like 2 hours for the confirmation msg to reach my inbox)

Anyway...I have a personal project going right now where my application links into several different modules that I've already made. The issue I have is that I have a standard way of handling database connectivity. I encapsulate my database connection and my result set into 2 classes: clsDatabase and clsQueryResults. For each of the individual projects, I've included these 2 classes and made the manipulation methods (i.e. open, close, beginTransaction, commit, rollback, ExecuteQuery) internal for security reasons. But now I have multiple definitions of these files located in each of the 3 modules that interface with the same database. I don't want to maintain each of them in their individual contexts. I want to be able to pull the clsDatabase and clsQueryResults out into a distinct component, but I am stuck on maintaining the integrity of the database. Once the classes are removed from the components, they can no longer access the internal methods located in these classes and making them public is not an option. Does anyone have suggestions to solve this issue?

[edit] To Clarify:
I would like clsDatabase to still be exposed to each of my projects, but not to the UI. Currently clsDatabase is maintained inside each of the projects and I would like to pull it out so I don't have to maintain multiple concurrent database connections to the same database inside the same instance of the program that can potentially attempt to manipulate data in the same table. So, I would like to pull clsDatabase and clsQueryResults out of each of the projects, place them in their own logical layer between my projects and ADO.NET and allow the projects to make direct calls to them with the caveat that they cannot be exposed to the UI. Does anyone know of an elegant solution to this issue? (Feel free to completely dispose of my logical design if you can formulate something that would work)

-- modified at 3:53 Tuesday 3rd October, 2006

Three Questions - Restricted Window & Forms's Order Level & Chart

digitalhand2-Oct-06 9:24

digitalhand

2-Oct-06 9:24

Hi everyone,

Actually, I got some problems to achieve the desired result for my application. Three problems which are:

1 - Restricted and access to any form which under the new popup window (For example: when you open the save dialog, you couldn't do anything unless to save your file or cancel the saving operation. I want to do the something to my popup window.

2 - I have MdiParent form and another normal form, the MdiParent form will appear first, then I Initialized the second one but its appeared under the MdiParent form. How can I change the order of forms?

3 - The last one, I want to add a pie chart that analyzes the data inside dataGridView in the same form. How can I do that?

Thanks in advance.

Digital.Hand

Re: Three Questions - Restricted Window & Forms's Order Level & Chart

Andrew Rissing2-Oct-06 9:58

Andrew Rissing

2-Oct-06 9:58

1. You want to make your form modal. You can do this by creating the new form and then calling "ShowDialog()" and that should do the trick.

Re: Three Questions - Restricted Window & Forms's Order Level & Chart

Nader Elshehabi2-Oct-06 14:18

Nader Elshehabi

2-Oct-06 14:18

Hello

1- Use Form.ShowDialog(), and you can get DialogResult as the return value.

2- If you mean by "under" that the second form appears behind the MDIParent, use Form.BringToFornt(). otherwise, please elaborate.

3- Search the articles[^].

Regards

Re: Three Questions - Restricted Window & Forms's Order Level & Chart

digitalhand4-Oct-06 2:51

digitalhand

4-Oct-06 2:51

Really, thanks a lot (Andrew & Nader ).

Friends...I need some help

OMalleyW2-Oct-06 9:05

OMalleyW

2-Oct-06 9:05

Having done a search both here and google I have found a ton of information about using HttpPostedFile. I have a situation where users will be uploading drawing files. Most of the time these files will not be very large, there are however those few people that continue to use Solidworks and create files that are 100Mb and up. Now I would just increase the max Http Request length but considering that I could have several people trying to upload huge files at the same time...this could get me in trouble.

I am not sure what to do...I am not able to use any 3rd party plugins or activeX controls...

Any ideas would be great....

Thanks,
Will

I hate users. Not all of them, just the ones who talk.CP member: Al Einstien

Re: Friends...I need some help

Nader Elshehabi2-Oct-06 12:56

Nader Elshehabi

2-Oct-06 12:56

Hello

AFAIK the best practice in transfering a file over a network is making it in chunks. This would give you two advantages:
1- Minimize data loss, and improve recovery.
2- Allows the user to resume uploading/downloading files later if there is a connection failure.

I wouldn't like it if I lose my 99Mb upload for a 2 secoinds power failure.;P

Regards

Writing redirected output from an unmanaged executable to a windows form control

erikash2-Oct-06 7:36

erikash

2-Oct-06 7:36

hi guys,
this question related to my previous post:
Link

The current problem is redirecting the output to a textbox...
there is the issue of a thread different from form's thread, trying to access the textbox.text property (i've read an article in msdn, i which they query the invokerequired property of the textbox and invoke it same method using this.invoke, but it doesn't seem to solve the problem)

again, i want to start a new process and redirect its output to a textbox at runtime (every line of text written by the process should be written at runtime at the textbox, without waiting for the process to finish)...

the answer in the first reply i got helped, but i couldn't make it thread safe (and in the buttom line i think it wrote the output to the textbox, but the window couldn't refresh itself until the other process has finished...

any suggestions?

Thanks in advance,
Erik.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.