Problems using UserControl - ASP.NET Discussion Boards

ptvce24-Jul-10 19:59

24-Jul-10 19:59

i have a dataGrid view in my windows form and now i want bind it programatically. i write this code::

string ConnString = "";
sqlConnection conn = new SqlConnection (ConnString);
string sql = "";
sqlDataAdapter da = new SqlDataAdapter(sql,conn);
conn.open()l
dataset ds = new dataset();
da.fill(ds);
conn.close();
datagridview1.DataSource = ds;

my code is right and ds hase 1 record and fill right but my grid dont show any record

do u know why?
has anything that i dont

Re: datagridview

thatraja24-Jul-10 20:08

thatraja

24-Jul-10 20:08

your code is incomplete. Add the following line end of your code.

datagridview1.Databind();

thatraja

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Re: datagridview

ptvce24-Jul-10 21:20

ptvce

24-Jul-10 21:20

but my form is windows form not web form and it has no databind,
what is insted of that in windows form?

Re: datagridview

nagendrathecoder25-Jul-10 19:57

nagendrathecoder

25-Jul-10 19:57

ptvce wrote:
but my form is windows form not web form

Then why you posted this question in ASP.Net forum, you should have posted it in C# forum.

[Cross Post] Re: datagridview

Sandeep Mewara24-Jul-10 22:21

Sandeep Mewara

24-Jul-10 22:21

1. Don't cross post at multiple forums. Pick one and stick to it.
Repost[^]

Re: datagridview

raju melveetilpurayil25-Jul-10 0:05

raju melveetilpurayil

25-Jul-10 0:05

datagridview1.DataSource = ds.Tables[0];

Re: datagridview

Tej Aj25-Jul-10 20:36

Tej Aj

25-Jul-10 20:36

If ur query returns multiple tables then use

datagridview1.DataSource = ds.Tables[0];

datagridview1.DataSource = ds;
datagridview1.DataMember = ds.Tables[0];

Tej Aj,
http://opexsolution.com/forum/[^]

Fan of:
http://www.abtstudioz.com/[^]

Problems using UserControl

FJJCENTU23-Jul-10 23:21

FJJCENTU

23-Jul-10 23:21

Hallo everybody, I am using using a Custom control inside an aspx page and such user control includes a public property, so I need to access from the aspx.cs to the object created and stablish a value for the public property, but I have problem because the page doesn't recognize the object, the register data is:

<%@ Register TagPrefix="Data" TagName="Navegador" Src="~/Controles_Usuario/Navegador.ascx" %>

and the inclusion sentence: <data:navegador id="NV1" runat="Server">

later from the aspx.cs code I try to access to NV1.Property1 = 1;

and it yields an error telling that the page doesn't recognize NV1 and if I define it with protected Navegador NV1, the error is JUST REDEFINED

So Please where is the error, because I find this kind of errors each time when I use Custom Controls.

Entity framework

future383923-Jul-10 21:47

future3839

23-Jul-10 21:47

Hi guys, I am new in Entityframework and trying to get more knowledge. I have got one question and hope u guys help me out.
When we create Entity Model, after finish the process, a class designer.cs created automatically. why this file created and what we have to write in this file?

thx

Re: Entity framework

Peace ON23-Jul-10 21:58

Peace ON

23-Jul-10 21:58

A little googling[^] will help you.

Just try to explore it by yourself.

HTH

Jinal Desai - LIVE
Experience is mother of sage....

Re: Entity framework

Gil Fink23-Jul-10 22:51

Gil Fink

23-Jul-10 22:51

Hi,
The class designer.cs is the product of code generation which create the relevant entities and context that you will need in order to communicate with the database. You shouldn't change the generated code! All the entities and the context are created as partial classes so you can add your own behavior in another partial class.

I hope it will help you.

Object relation mapping

future383923-Jul-10 21:44

future3839

23-Jul-10 21:44

Hi every1,
Could you please, some one tell me in explicit language what is ORM and what are the advantages of using it?

thx

Re: Object relation mapping

Sandeep Mewara23-Jul-10 21:50

Sandeep Mewara

23-Jul-10 21:50

Well,
ORM in computer software is a programming technique for converting data between incompatible type systems in object-oriented programming languages. This creates, in effect, a "virtual object database" that can be used from within the programming language.

Simple details about it can be read here: WIKI ORM[^]

Re: Object relation mapping

Sathesh Sakthivel24-Jul-10 2:27

Sathesh Sakthivel

24-Jul-10 2:27

Object-relational mapping (ORM, O/RM, and O/R mapping) in computer software is a programming technique for converting data between incompatible type systems in object-oriented programming languages. This creates, in effect, a "virtual object database" that can be used from within the programming language.

Advantages of ORM as as follows:

1. Facilitates implementing the Domain Model pattern.
2. Huge reduction in code.
3. Changes to the object model are made in one place.
4. Rich query capability.
5. Navigation.
6. Data loads are completely configurable allowing you to load the data appropriate for each scenario.
7. Concurrency support.
8. Cache managment.
9. Transaction management and Isolation.
10. Key Management.

Sathesh.

Blessed is the season which engages the whole world in a conspiracy of love.

Re: Object relation mapping

Ankur^\m/24-Jul-10 2:59

Ankur^\m/

24-Jul-10 2:59

You forgot to mention the link from where you copied it.
http://en.wikipedia.org/wiki/Object-relational_mapping[^] and http://blogs.msdn.com/b/gblock/archive/2006/10/26/ten-advantages-of-an-orm.aspx[^]

I am putting it so that OP can read more details.

..Go Green..

xmldatasource + rss + retrieve image

Thommie.h23-Jul-10 8:06

Thommie.h

23-Jul-10 8:06

Hi,

I use a xmldatasource to display news from another site on mine. But in the description there is an image that i dont know how to retrieve? I get a "empty" image icon.

Can anyone help out? I use, XPath="rss/channel/item" and the image is under description i think..

thanks in advance
Thommie

Re: xmldatasource + rss + retrieve image

Peace ON23-Jul-10 19:22

Peace ON

23-Jul-10 19:22

I found one useful link[^] for the same.

It contains example to retrieve image from RSS feed.

HTH

Jinal Desai - LIVE
Experience is mother of sage....

Re: xmldatasource + rss + retrieve image

Thommie.h24-Jul-10 10:05

Thommie.h

24-Jul-10 10:05

couldn´t get it to work with XPath like i retrieve alla the rest information, any ideas?

Richtextbox

4anusha423-Jul-10 2:31

4anusha4

23-Jul-10 2:31

How to append a new line to a richtextbox in c#.net

Re: Richtextbox

Yusuf23-Jul-10 3:55

Yusuf

23-Jul-10 3:55

what happen to your old friend new line character '\n' Wink | ;)

Yusuf
May I help you?

Re: Richtextbox [modified]

raju melveetilpurayil23-Jul-10 3:59

raju melveetilpurayil

23-Jul-10 3:59

RichTextBox.Text = "1st line<br/> 2nd line";

makhaai

modified on Saturday, July 24, 2010 3:44 AM

Re: Richtextbox

Sandeep Mewara23-Jul-10 21:37

Sandeep Mewara

23-Jul-10 21:37

Shouldn't it be <br /> instead of </br>?

Re: Richtextbox

raju melveetilpurayil23-Jul-10 21:44

raju melveetilpurayil

23-Jul-10 21:44

Sandeep Mewara, its a mistake. I will Update that.

Re: Richtextbox

Sandeep Mewara23-Jul-10 21:47

Sandeep Mewara

23-Jul-10 21:47

Looks like you didnt like me pointing it. D'Oh! | :doh:

Chill, just told you so that you can rectify it.

Re: Richtextbox

raju melveetilpurayil23-Jul-10 21:54

raju melveetilpurayil

23-Jul-10 21:54

I am not. I like doing something [posting,asking..] here, other than any other Programming forums. because if I do anything wrong others [like u] will correct me. anyway thank you Sandeep Mewara.

Raju.M

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