Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.




264 posts

Ultimate Geek
Inactive user


# 49541 19-Nov-2009 15:42
Send private message

Hi Everyone,

I am creating a datagrid and I need the ability to add new rows to the database from this datagrid. I have placed textboxes in the footer of the datagrid and used an ItemCommand event handler so that when a linkbutton is clicked my function is called. Everything is going well except the text in the textboxes is not being passed properly to the function.

I am using the following command to extract the text.

sqlcmd.Parameters.Add("@GoodsDesc", SqlDbType.VarChar).Value = CType(e.Item.FindControl("txtGoodsDesc"), TextBox).Text

I'm sure this is right but I have a feeling the text is not being bound to the box or something as it is just giving me an empty string. Is there a step I am missing out here where I tell the code to set the text from the textboxes?

Create new topic
6360 posts

Uber Geek

Moderator
Trusted
Lifetime subscriber

  # 274576 19-Nov-2009 20:03
Send private message

What's happening in Page_load? Are you escaping that sub before your new line is initiated?

27 posts

Geek


  # 274729 20-Nov-2009 13:10
Send private message

Hi there

Have you tried accessing the text box directly?

sqlcmd.Parameters.Add("@GoodsDesc", SqlDbType.VarChar).Value = Me.txtGoodsDesc.Text

This assumes the textbox's RunAtServer property is set to True.

Cheers

 
 
 
 


113 posts

Master Geek


  # 274798 20-Nov-2009 18:34
Send private message

Hi, I use datagrids a lot in my development to display info, but I never wanted to use them for adding whole rows, instead I just setup some textboxes and combo boxes for the fields that I know are going to be there and then have a submit button, I find this makes it a little bit easier for the user to input data.

 

Hadley



264 posts

Ultimate Geek
Inactive user


  # 275386 23-Nov-2009 10:14
Send private message

nate: What's happening in Page_load? Are you escaping that sub before your new line is initiated?


Thanks for the hint. It seems that when I click on the link to call the method it is going straight to page_load before it calls the function. This is causing it to clear the text boxes before it tries to read the text in them. Now it's just a matter of figuring out how to stop this. I have a few ideas so here's hoping it works.

27 posts

Geek


  # 275398 23-Nov-2009 10:39
Send private message

Page.Load will be called for every post back. But by the time it is called (there is some code that runs prior to this) your textbox should already have its value. The only time that this may not happen is when you are dynamically adding controls with code, instead of using Asp.Net designer or the Html window. Post your code if you get stuck and I'll have a look.
Good luck
Cheers
Ben

3 posts

Wannabe Geek


  # 280224 8-Dec-2009 02:21
Send private message

@OP:

Very important to remember not to re - bind data on page_load if a postback has occured you can use the following to assist you.


If page.isPostBack = false then
   'Call your databinding here
end if

Hope this helps :)

Create new topic



Twitter and LinkedIn »



Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Intel introduces cryogenic control chip to enable quantum computers
Posted 10-Dec-2019 21:32


Vodafone 5G service live in four cities
Posted 10-Dec-2019 08:30


Samsung Galaxy Fold now available in New Zealand
Posted 6-Dec-2019 00:01


NZ company oDocs awarded US$ 100,000 Dubai World Expo grant
Posted 5-Dec-2019 16:00


New Zealand Rugby Selects AWS-Powered Analytics for Deeper Game Insights
Posted 5-Dec-2019 11:33


IMAGR and Farro bring checkout-less supermarket shopping to New Zealand
Posted 5-Dec-2019 09:07


Wellington Airport becomes first 5G connected airport in the country
Posted 3-Dec-2019 08:42


MetService secures Al Jazeera as a new weather client
Posted 28-Nov-2019 09:40


NZ a top 10 connected nation with stage one of ultra-fast broadband roll-out completed
Posted 24-Nov-2019 14:15


Microsoft Translator understands te reo Māori
Posted 22-Nov-2019 08:46


Chorus to launch Hyperfibre service
Posted 18-Nov-2019 15:00


Microsoft launches first Experience Center worldwide for Asia Pacific in Singapore
Posted 13-Nov-2019 13:08


Disney+ comes to LG Smart TVs
Posted 13-Nov-2019 12:55


Spark launches new wireless broadband "Unplan Metro"
Posted 11-Nov-2019 08:19


Malwarebytes overhauls flagship product with new UI, faster engine and lighter footprint
Posted 6-Nov-2019 11:48



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.


Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.