Change pricedisplay

[User (Legacy)]

How do I change the pricedisplay in the financial extension? In 

InitializeComponent the pricedisplay is initially set. However after a user 

clicks a button I want to change it from Close to HighLowClose.

So something like:

this.financial1.Gallery.Analytical.PriceDisplay = 

SoftwareFX.ChartFX.Financial.Server.PriceDisplay.HighLowClose;

but this does not work. How do I remove the price series and add the 

highlowseries in the main chart being drawn?

[Software FX]

Edwin,

I am confused when you say it "does not work" do you get a crash or just 

don't see the highlowclose?

After you set the PriceDisplay property what is its' value ? Still close?

Off the top of my head, I see three reasons why this line of code fails:

1) You have not passed enough data to the chart. Meaning you have only 

passed one or two series or you have passed three series and one is assigned 

to be volume series. This type of chart requires 3 series to be passed to 

the chart. In this case PriceDisplay would still be close AFTER you assign 

it. Furthermore, when you use the active client in internet explorer the 

Toolbar will not allow to switch to High Low Close.

2) You are assigning PriceDisplay BEFORE the InitializeComponent when 

IsPostBack is true and thus what you set it being overridded by what is in 

the InitComponent method. (This is unlikely but it depends on when the 

LoadViewState is called) The best place to do this kind of change is in the 

button_click event handler as that is AFTER the InitializeComponent happens.

3) You are assigning the PriceDisplay correctly in the button_click method 

and you have the correct data. However, you are assigning the value to the 

OLD financal1 object when you first generated the page. What happens is that 

the viewstate engine re-reads the chart and de-serializes it. However, this 

process is our own and thus on postback a new financial is created for the 

page but then we re-read in ours and create a new one. The pointer to 

financial1 on the page is now the wrong pointer. To fix this add this code 

to your event handler at the beginning of the method:

financial1 = (Financial) Chart1.Extensions[0];

This code relinks up the financial1 on your page to the one that is really 

attached (and was read) by the chart.

Lastly, the correct newsgroup for these kind of Extension issues is 

"chartfx.extensions"  Please direct your queries to there if they are 

extension related.

Hope this helps.

-c

"Edwin" <info@ibrain.nl> wrote in message 

news:Bf7xh$wtFHA.4084@webserver3.softwarefx.com...

> How do I change the pricedisplay in the financial extension? In 

> InitializeComponent the pricedisplay is initially set. However after a 

> user clicks a button I want to change it from Close to HighLowClose.

> So something like:

> this.financial1.Gallery.Analytical.PriceDisplay = 

> SoftwareFX.ChartFX.Financial.Server.PriceDisplay.HighLowClose;

>

> but this does not work. How do I remove the price series and add the 

> highlowseries in the main chart being drawn?

>

[User (Legacy)]

Thanks. It was the third option that did the tric, so relinking to the new 

financial1.

"Software FX Support" <support@softwarefx.com> wrote in message 

news:yJTgzm6tFHA.2656@webserver3.softwarefx.com...

> Edwin,

> I am confused when you say it "does not work" do you get a crash or just 

> don't see the highlowclose?

> After you set the PriceDisplay property what is its' value ? Still close?

>

> Off the top of my head, I see three reasons why this line of code fails:

> 1) You have not passed enough data to the chart. Meaning you have only 

> passed one or two series or you have passed three series and one is 

> assigned to be volume series. This type of chart requires 3 series to be 

> passed to the chart. In this case PriceDisplay would still be close AFTER 

> you assign it. Furthermore, when you use the active client in internet 

> explorer the Toolbar will not allow to switch to High Low Close.

>

> 2) You are assigning PriceDisplay BEFORE the InitializeComponent when 

> IsPostBack is true and thus what you set it being overridded by what is in 

> the InitComponent method. (This is unlikely but it depends on when the 

> LoadViewState is called) The best place to do this kind of change is in 

> the button_click event handler as that is AFTER the InitializeComponent 

> happens.

>

> 3) You are assigning the PriceDisplay correctly in the button_click method 

> and you have the correct data. However, you are assigning the value to the 

> OLD financal1 object when you first generated the page. What happens is 

> that the viewstate engine re-reads the chart and de-serializes it. 

> However, this process is our own and thus on postback a new financial is 

> created for the page but then we re-read in ours and create a new one. The 

> pointer to financial1 on the page is now the wrong pointer. To fix this 

> add this code to your event handler at the beginning of the method:

> financial1 = (Financial) Chart1.Extensions[0];

> This code relinks up the financial1 on your page to the one that is really 

> attached (and was read) by the chart.

>

> Lastly, the correct newsgroup for these kind of Extension issues is 

> "chartfx.extensions"  Please direct your queries to there if they are 

> extension related.

> Hope this helps.

>

> -c

>

>

> "Edwin" <info@ibrain.nl> wrote in message 

> news:Bf7xh$wtFHA.4084@webserver3.softwarefx.com...

>> How do I change the pricedisplay in the financial extension? In 

>> InitializeComponent the pricedisplay is initially set. However after a 

>> user clicks a button I want to change it from Close to HighLowClose.

>> So something like:

>> this.financial1.Gallery.Analytical.PriceDisplay = 

>> SoftwareFX.ChartFX.Financial.Server.PriceDisplay.HighLowClose;

>>

>> but this does not work. How do I remove the price series and add the 

>> highlowseries in the main chart being drawn?

>>

>

>