Re: Crystal reports with multi typed datasets - C# Discussion Boards

Weiye Chen5-Feb-04 21:54

5-Feb-04 21:54

I have a function with a problem as describe in it:

public void Func(Control control)
{
   // If control is actually a Form object, do this
   ...

   // Else if control is a Button object, do that
   ...
}

I need to know at runtime, whether the control object is actually derived from Form or Button. Any ideas?

<font=arial>Weiye Chen
When pursuing your dreams, don't forget to enjoy your life...

Re: Type of control object...

thomasa5-Feb-04 22:56

thomasa

5-Feb-04 22:56

public void Func(Control c)
{
if (c.GetType().ToString() == "System.Windows.Forms.Form")
{
}
else if (c.GetType().ToString() == "System.Windows.Forms.Button")
{
}
}

Re: Type of control object...

Dan_P5-Feb-04 23:31

Dan_P

5-Feb-04 23:31

Or you could make it look nicer by

public void Func(Control c)
{
     if(c is System.Windows.Forms.Form){
     {
    
     }elseif(c is System.Windows.Forms.Button)
     {


     }
}

Re: Type of control object...

Weiye Chen6-Feb-04 1:11

Weiye Chen

6-Feb-04 1:11

Yes, i do like "nice" looking solution... Smile | :)

<font=arial>Weiye Chen
When pursuing your dreams, don't forget to enjoy your life...

Re: Type of control object...

Weiye Chen6-Feb-04 1:07

Weiye Chen

6-Feb-04 1:07

Thanks!

<font=arial>Weiye Chen
When pursuing your dreams, don't forget to enjoy your life...

Crystal reports with multi typed datasets

SimonS5-Feb-04 21:03

SimonS

5-Feb-04 21:03

Here's my scenario:

I want to create a report with a header, details and footer where each of these sections come from a separate typed dataset.

So, for an invoice I want to do the following:
header - client info
details - line items for order
footer - totals for order

I can't go directly to the database with Crystal, so I thought using typed datasets would be OK.
I can create a header report and a line item report with separate typed datasets, but can't come right with one report composing of three typed datasets.

To create one report I'm using:
CrystalReport1 report1 = new CrystalReport1();
report1.SetDataSource(lines); //lines = a typed dataset
crystalReportViewer1.ReportSource = report1;

For the composite report, I've tried:
dsCompo.Tables.Add( lines.Copy());
dsCompo.Tables.Add( companytx.Copy());
CrystalReport4 report4 = new CrystalReport4();
report4.SetDataSource(ds);
crystalReportViewer1.ReportSource=report4;

But the viewer jsut asks for a database login...
I have tried using a subreport, but get the same result.

Is there something obvious I'm missing?

Cheers,
Simon

sig ::
"Don't try to be like Jackie. There is only one Jackie.... Study computers instead.", Jackie Chan on career choices.

article :: animation mechanics in SVG blog:: brokenkeyboards

Re: Crystal reports with multi typed datasets

SimonS5-Feb-04 21:28

SimonS

5-Feb-04 21:28

Same question as above, just after 2 cups of coffee:

Here's my scenario:

I have report A populated with a typed dataset and it works.
I have report B populated with a different typed dataset and it works.

Now I want to combine these 2 into another report.
Using the Crystal.NET designer, I make a new report and add the above 2 subreports.
Given the following code:
CrystalReport4 report4 = new CrystalReport4();
report4.SetDataSource(/* ??? */);
crystalReportViewer1.ReportSource=report4;

What do I set the datasource of my composite report to?
I really need to pass both populated typed datasets in, but the interface is a little unhelpful...

Cheers,
Simon

sig ::
"Don't try to be like Jackie. There is only one Jackie.... Study computers instead.", Jackie Chan on career choices.

article :: animation mechanics in SVG blog:: brokenkeyboards

Re: Crystal reports with multi typed datasets

Heath Stewart6-Feb-04 2:44

Heath Stewart

6-Feb-04 2:44

I'm not sure if you can use multiple DataSets, but you could merge one typed DataSet with the other and use that. In order to design the report, you might consider creating a typed DataSet that has the merged structure. If you don't want to keep the generated classes for it in your project, you could probably toss it after you're finished designing your report since the merged DataSet would have the same structure.

Microsoft MVP, Visual C#
My Articles

How to create a fadein dialog by C#?

tuliplanetrain5-Feb-04 20:59

tuliplanetrain

5-Feb-04 20:59

anybody know?

Tuliplanet

Re: How to create a fadein dialog by C#?

Mazdak5-Feb-04 21:27

Mazdak

5-Feb-04 21:27

Change the Opacity property of your form in a timer or something like that.

Mazy

"Improvisation is the touchstone of wit." - Molière

Re: How to create a fadein dialog by C#?

tuliplanetrain5-Feb-04 21:51

tuliplanetrain

5-Feb-04 21:51

it doesn't work!

the interval property of timer is 100!

this is my code,is there anything wrong?

private void button1_Click(object sender, System.EventArgs e)
{
this.Opacity = 0;

timer1.Start();
}

private void timer1_Tick(object sender, System.EventArgs e)
{
this.Opacity = this.Opacity + 5;

if(this.Opacity >= 100)
{
timer1.Stop();
}
}

Tuliplanet

Re: How to create a fadein dialog by C#?

Morten Kristensen5-Feb-04 22:23

Morten Kristensen

5-Feb-04 22:23

Hey.. You have to set the timers interval, when it has to run the method.

Timer newTimer = new Timer();<br />
newTimer.Interval = 1000; // one sec<br />
newTimer.Tick += new EventHandler(TheMethod);<br />
<br />
// ..<br />
<br />
newTimer.Start();

- Up The Irons, Morten Kristensen

Re: How to create a fadein dialog by C#?

Mazdak5-Feb-04 22:34

Mazdak

5-Feb-04 22:34

Automatic Fading Form
[^]

Mazy

"Improvisation is the touchstone of wit." - Molière

Re: How to create a fadein dialog by C#?

Mazdak5-Feb-04 22:58

Mazdak

5-Feb-04 22:58

By the way this will solve it:

Tuliplanet wrote:
this.Opacity = this.Opacity + 5;

Change it to

this.Opacity = this.Opacity + 0.05;

You should use numbers between 0 to 1.

Mazy

"Improvisation is the touchstone of wit." - Molière

Re: How to create a fadein dialog by C#?

tuliplanetrain5-Feb-04 22:40

tuliplanetrain

5-Feb-04 22:40

see my reply!!
i set interval=100,but the form just show after a flash!

Tuliplanet

Re: How to create a fadein dialog by C#?

Morten Kristensen5-Feb-04 23:01

Morten Kristensen

5-Feb-04 23:01

Hehe.. Easy man. Didnt see that sorry.

Anyways.. You could also use Thread and ThreadStart?

<br />
using System.Threading;<br />
<br />
//..<br />
<br />
ThreadStart ts = new ThreadStart(TheMethod);<br />
Thread t = new Thread(ts);<br />
t.Start();<br />
<br />
// ..<br />
<br />
public void TheMethod(){<br />
 for(int i = 0;i<=100;i++){<br />
  Thread.Sleep(10);<br />
  // Perform Code<br />
 }<br />
}<br />

- Up The Irons, Morten Kristensen

Re: How to create a fadein dialog by C#?

Mazdak5-Feb-04 23:08

Mazdak

5-Feb-04 23:08

The problem is not with thread or timer. He set the wrong value for that property. Smile | :)

Mazy

"Improvisation is the touchstone of wit." - Molière

XPath problem

alexiev_nikolay5-Feb-04 20:44

alexiev_nikolay

5-Feb-04 20:44

I have a xml document with utf-8 encoding and tags name is on cyrilic. I can't use XPath to find a tag. What can I do?

10x in advance

Re: XPath problem

Mazdak5-Feb-04 21:33

Mazdak

5-Feb-04 21:33

What do you mean by I can't use XPath? You get error you don't know the proper query string? There are many samples article about XPath in this site and some thers in MSDN too. Have you take a look at them?

Mazy

"Improvisation is the touchstone of wit." - Molière

How to convert Virtual-Key code to char?

Anonymous5-Feb-04 19:34

Anonymous

5-Feb-04 19:34

I'm using KBDLLHOOKSTRUCT.vkCode and need to get char

Re: How to convert Virtual-Key code to char?

Heath Stewart6-Feb-04 2:42

Heath Stewart

6-Feb-04 2:42

You should just be able to cast it to a char:

char c = (char)theStruct.vkCode;

Microsoft MVP, Visual C#
My Articles

Changing the X and Y properties of a point

Meysam Mahfouzi5-Feb-04 18:44

Meysam Mahfouzi

5-Feb-04 18:44

Point p = new Point(12, 14);

....


p.X = 13; //Compile time error, Why?
p.Offset(1, 0);//I don't no why it dosn't work?
p = new Point(13, 14);//The only way I got through

Don't forget, that's

Persian Gulf

not Arabian gulf!

Re: Changing the X and Y properties of a point

Heath Stewart5-Feb-04 19:01

Heath Stewart

5-Feb-04 19:01

Are you sure you're typing an upper-case X and not a lower-case x? The latter is a private field and thus only accessible from the Point struct itself. Assigning the former (upper-case X) is fine.

Also keep in mind that the Point struct (like all structs) is a value type. If you think you have a reference to it somewhere else and you didn't pass it using the ref keyword, then you're mistaken. If you pass Point as a param you pass a copy, not a reference. If you're expecting Offset to change that, it won't. Otherwise, it does modify the instance of the Point on which it was called.

Microsoft MVP, Visual C#
My Articles

Re: Changing the X and Y properties of a point

Meysam Mahfouzi6-Feb-04 17:56

Meysam Mahfouzi

6-Feb-04 17:56

Heath Stewart wrote:
Are you sure you're typing an upper-case X and not a lower-case x?

Sure!

I am actually in this situation:

I store some instances of Point structs into an ArrayList, then I have a lot of these ArrayLists each of which is stored in one main ArrayList, so for changing the X position of all points, I iterate through all of them within 2 ArrayLists.

Heath Stewart wrote:
If you pass Point as a param you pass a copy

Sure, the 2 ArrayLists are defined globally in my class, and I don't pass them as parameters.

Anyway, I can send you my source code later if needed,
and I really appreciate your answers Heath! Rose | [Rose]

Don't forget, that's

Persian Gulf

not Arabian gulf!

Re: Changing the X and Y properties of a point

Heath Stewart7-Feb-04 3:20

Heath Stewart

7-Feb-04 3:20

First of all, there is no "global" anything in .NET. If doesn't matter if these ArrayLists are instance or static members, the problem is that the Point struct is a value type and a statement such as

((Point)myArrList[i]).X = 13;

is actually compiled to something similar to this

Point p = (Point)myArrList[i];
p.X = 13;

Either way, therein lies the problem. Since the Point struct is a value type, you're actually making a copy of it (in p in this example), not assigning a reference to it. This is how value types work. It doesn't matter if you pass them as parameters or store them in a list. When you get them from the list you are getting a copy so the value type in the list will not be changed.

See the article, Value vs Reference Types in C#[^] (actually, all of .NET) for a comprehensive discussion of the topic.

Microsoft MVP, Visual C#
My Articles

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