Re: load image - ASP.NET Discussion Boards

How to persist 'doubled up' usercontrol in a datalist and a repeater control across a postback - arghhh!

Fu Manchu4-Nov-09 3:21

4-Nov-09 3:21

Hi guys,

I don't know which way to go with this i think ive exhausted all efforts. My usercontrol display information but when i click update a full page postback occurs and i lose everything, my control disappears!

I have an extremely large amount of data to display to the users, so using exsiting controls like a gridview is just silly. I've opted for a usercontrol that displays a set of prices by location and product. I have also given the user a couple of checkbox controls to be able to select groups of locations and groups of products.

Ive put my usercontrol in another with a datalist and a objectdatasource that gets a list of the locations and this accepts a productID, this is why im saying 'doubled up'. A usercontrol within a usercontrol! Not sure if this is the best solution? Because i cant directly access the control with a datalist?

On the main form, i have a repeater control with the usercontrol inside it. This repeats the locations selected (9 max) (created by the datalist) for every product (33 max) selected if you get me! Each control has an update button, but when its clicked the controls disappear.

Listed below is the second control:-

<asp:DataList ID="DataList1" runat="server" RepeatColumns="3" <br />
    DataSourceID="ObjectDataSource1"><br />
<br />
         <ItemTemplate><br />
<br />
	<br />
	   <uc1:CompanyPriceWidget ID="CompanyPriceWidget" runat="server" companyName='<%#Eval("Company.CompanyName")%>' <br />
	   productCost='<%#Eval("StockItemProductCostSterling")%>' retailSalePrice='<%#Eval("StockItemRetailSalePriceSterling")%>'<br />
	   productCostOverHead= '<%#Eval("StockItemProductCostOverHead")%>' retailSalePriceOverHead='<%#Eval("StockItemRetailSalePriceOverHead")%>'<br />
	   ExchangeRate='<%#Eval("Company.CurrencyExchangeRate.CurrencyRate")%>' companyId='<%#Eval("Company.CompanyID")%>' OnUpdateValues="CompanyPriceWidget_UpdateValues" /><br />
            <br />
	   <br />
	    </ItemTemplate><br />
<br />
        </asp:DataList>   <br />
     <br />
        <br />
<br />
  <asp:ObjectDataSource ID="ObjectDataSource1" runat="server" <br />
               SelectMethod="GetListOfStockValueGroupedByCompany" <br />
               TypeName="StockValueSterlingDel" <br />
    OldValuesParameterFormatString="original_{0}"><br />
               <SelectParameters><br />
                   <asp:Parameter Name="stockItemPriceBandId" Type="Int32" /><br />
               </SelectParameters><br />
           </asp:ObjectDataSource><br />
<br />

On the Main Form

<br />
           <asp:Repeater ID="Repeater1" runat="server"><br />
<br />
        <ItemTemplate><br /><br />
<br />
        <h1><%#Eval("Description")%></h1><br />
<br />
            <uc2:StockValueWidget ID="StockValueWidget1" runat="server" StockItemPriceBandId='<%#Eval("StockItemPriceBandID")%>' /><br />
<br />
        </ItemTemplate><br />
<br />
        </asp:Repeater>

The form runs fine, but when i click to update the values i.e a postbasck occurs my control disappears.
Does anyone know a way of doing this dynamically? Or knows how the repeater control works with usercontrols!

Thanks
Andy

Re: How to persist 'doubled up' usercontrol in a datalist and a repeater control across a postback - arghhh!

Nishant Singh4-Nov-09 3:35

Nishant Singh

4-Nov-09 3:35

So as I can make out ....
There are 2 Different User Controls one in dataList and other in Repeater control
....... and the problem which you are facing is that on postback the UserControl inside the repeater disappears

Re: How to persist 'doubled up' usercontrol in a datalist and a repeater control across a postback - arghhh!

Nishant Singh4-Nov-09 3:42

Nishant Singh

4-Nov-09 3:42

In this case check whether on Page load(After Postback) the conrols are rendered .........

Re: How to persist 'doubled up' usercontrol in a datalist and a repeater control across a postback - arghhh!

Fu Manchu4-Nov-09 4:05

Fu Manchu

4-Nov-09 4:05

Thanks for your reply,

I have a render event in my control that fires to fill up the textboxes etc... You have given my an idea to why this is happening, it appears that the value thats in passed to the first control is now 0 at postback, i'll have to create some kind of collection to store these in session. However when i fix this value, the controls a rendered but i now lose all my data as everything goes to 0. So is appears that all the data in the controls is lost due to the postback.

this is going to be one almighty collection stored in session, the viewstate is going to be massive!

Thanks for your help
Andy

load image

Arefeh Haghpnah4-Nov-09 3:17

Arefeh Haghpnah

4-Nov-09 3:17

hi.
i work in Microsoft Visual Studio 2008 . i working in C# enviroment and creat a website project.
i want open picture with open dialog .please tell me who i can load picture with open dialog?
i am beginner .
please explain step to step.
whether i need a componet as toolbar?
please help me.
i need help body.
thank you. Cry | :((

Re: load image

Not Active4-Nov-09 3:37

Not Active

4-Nov-09 3:37

I'm not quite clear, are you trying to upload the image from you website or include it in Visual Studio?

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

Re: load image

Arefeh Haghpnah5-Nov-09 7:36

Arefeh Haghpnah

5-Nov-09 7:36

i trying to upload the image in Visual Studio.
please help me.
thank you

Re: load image

Not Active5-Nov-09 7:56

Not Active

5-Nov-09 7:56

You can use drag & drop to place the image in your solution or the context menu, Add Existing Item. However, if you haven't been able to figure this out, then the tool is beyond your current capabilities and skills. Find another tool, learn the current one, or quit while you're behind.

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

Re: load image

Eduard Keilholz4-Nov-09 3:40

Eduard Keilholz

4-Nov-09 3:40

Erhm, I don't clearly understand your question, however what I made up, is that you're developing an ASP.NET website using C#, and you want the display I file which you can select from harddrive. Im I correct here? Have you considered reading Konstantin Vasserman's article
File Upload with ASP.NET[^] which helps you step by step?

.: I love it when a plan comes together :.
http://www.zonderpunt.nl

Re: load image

Arefeh Haghpnah5-Nov-09 7:44

Arefeh Haghpnah

5-Nov-09 7:44

very very thank you.

loading image

Raja Soosai4-Nov-09 2:44

Raja Soosai

4-Nov-09 2:44

hi I need to know how to show the loading image in gridview while loading for each row using javascript. only for that single column getting data from some other db.

Re: loading image

Not Active4-Nov-09 3:34

Not Active

4-Nov-09 3:34

Something like this?

function LoadDataRow()
{
    var img = document.GetElementById("image");
    img.style = "visible";

    // Load data

    img.style = "hidden";
}

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

Re: loading image

Raja Soosai4-Nov-09 19:32

Raja Soosai

4-Nov-09 19:32

Hi
When To Call this JS function.

Re: loading image

Not Active5-Nov-09 1:10

Not Active

5-Nov-09 1:10

Are you serious? If you can't figure that out you should not attempt this project. Go to your manager and tell them you are not capable of theis work and ask to be reassigned to the mailroom.

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

Re: loading image

Raja Soosai10-Nov-09 2:00

Raja Soosai

10-Nov-09 2:00

Hi Code Project,

I got solution for my problem. Its very easy to show the loading image for each row in grid view. I'l upload the described answer soon....

Thanks,
S.Raja

framework for Line-Of-Buisness applications

Alexandr Sergeevich Ilyin4-Nov-09 2:44

Alexandr Sergeevich Ilyin

4-Nov-09 2:44

Hello, I have been developing web framework based on asp.net, would not you take look at it ? I would be very happy to hear your opinion.
http://liveui.net

Re: framework for Line-Of-Buisness applications

Bassam Saoud4-Nov-09 5:55

Bassam Saoud

4-Nov-09 5:55

Intresting, do you plan to create articles describing your framework?

Re: framework for Line-Of-Buisness applications

Alexandr Sergeevich Ilyin4-Nov-09 18:49

Alexandr Sergeevich Ilyin

4-Nov-09 18:49

Thanks for reply. Currently the biggest problem is documentation, I've started writing manual already and going to write article for codeproject. I hope it will be published in about two weeks.

Need Custome datagrid control

girishdonde4-Nov-09 2:29

girishdonde

4-Nov-09 2:29

Hello everyone,
I need an ajax enebled datagrid which should have options like master detail grid, filtering, sorting, exporting.
I got such control in OBOUT but its a not free control.
If any one know such free custom datagrid control having such functionality(atleast some of it) then please let me know.
Is silverlight having such datagrid?

Re: Need Custome datagrid control

Bassam Saoud4-Nov-09 6:33

Bassam Saoud

4-Nov-09 6:33

I would start with this Article[^]

Save multiple values

getaccessyr4-Nov-09 0:09

getaccessyr

4-Nov-09 0:09

Hi All,

Can i know how to save multiple values in a singleproperty?

i know we cant use viewstate for that?

please let me know asap if any alternate way is there?

Thanks In advance

Re: Save multiple values

padmanabhan N4-Nov-09 0:10

padmanabhan N

4-Nov-09 0:10

use datatable....

Padmanabhan
My Articles:
Articles[^]
My latest Article:
Word Automation[^]

Re: Save multiple values

getaccessyr4-Nov-09 0:13

getaccessyr

4-Nov-09 0:13

Hi,

Thankyou for ur reply.

Yes we can do the same if the controls which we r binding will be static.

but we have to bind dynamic controls,in that case if in same page we have multiple dropdowns then we need to save those values.

I need that.

Re: Save multiple values

padmanabhan N4-Nov-09 0:15

padmanabhan N

4-Nov-09 0:15

then use arraylist for that...

Padmanabhan
My Articles:
Articles[^]
My latest Article:
Word Automation[^]

Re: Save multiple values

m@dhu4-Nov-09 0:12

m@dhu

4-Nov-09 0:12

yamunarani wrote:
singleproperty?

what do you mean by single property??

Last Visit: 31-Dec-99 18:00 Last Update: 24-Apr-24 12:32

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