Tracking Forums, Newsgroups, Maling Lists
Home Submit Tracker Forums
  Advanced Search
  HOME    TRACKER    ASP.NET


Advertisements:










Winforms - Why Is There A Databind() For Gridview


Why is there a need to explicitly call GridView.DataBind() to render the gridview. Why wouldn't it render by itself automatically like how it happens in Window Forms?


View 2 Replies (Posted: Mar 5 10 at 20:14)

Sponsored Links:

Related Forum Messages For ASP.NET category:
Web Forms :: Databind() In Gridview Does Nothing In IE / Databind Doesn't Show The Updated Grid
i'm opening a new window and passing on to it variables in a querystring, the values are loaded into a function that is filling my dataset and then filling my Gridview. after i press the button field in my grid to delete an item, the databind doesn't show the updated grid but remains the same. i've noticed that if i navigate back and refresh i see it correctly. in FF btw no problem.

the code:

this is used to open the new window

[Code]....

[Code]....

[Code]....

[Code]....

Posted: Mar 21, 2010 08:34 AM

View 3 Replies!   View Related
Gridview Rowdatabound Event In Winforms?
in asp.net we can handle the RowDataBound event of the GridView control. this event fires when every row is added to the gridview.

i want to be able to handle this event in the gridview in a winforms application but i cannot find a similar event. my question is what is the event name that allows me to do the same as RowDataBound in asp.net?

Posted: Dec 12 10 at 10:55

View 1 Replies!   View Related
Forms Data Controls :: Gridview Inside User Control Databind/how To Set The Datasoruce Property Of Gridview
I am developing a usercontrol which has a gridview control in it.

Now I want to set the datasoruce property of gridview. Datasoruce will be a generic list (List<Class>).

How to do this ?

Posted: May 08, 2010 02:09 AM

View 1 Replies!   View Related
Gridview With Navigate URL Databind
This should be simple but I can't figure it out. I have a grid view that includes a link. I am trying to bind date to the navigationURL. The data includes the id (primary key) and confirmNum from the DB. I have the id working but can't get the confirmNum to show. Here is the code:

NavigateUrl='<%# DataBinder.Eval(Container, "DataItem.id", "MyRequests_Full.aspx?id={0}" + "&confirmNum=DataBinder.Eval(Container.DataItem, "confirmNum") %>'
Any Ideas?

Posted: Sep 11, 2009, 09:23

View 1 Replies!   View Related
Databind A Caption When Using A Gridview?
Can you databind a caption when using a gridview?

Posted: Jun 9, 2010, 04:50

View 1 Replies!   View Related
C# - Programmatically Databind A GridView Control
I have a blank/unbound GridView control on my form and I am binding it in the code behind like this:

GridView1.DataSource = _dataSet
DataBind()

Running this code populates my GridView control with all the columns and data that _dataSet has. I want to display only some of the columns, change the column names, and rearrange some of these columns too (i want the last column from the actual sql database table to be displayed first in my GridView).

Posted: Sep 27 10 at 17:11

View 2 Replies!   View Related
C# - Databind A Gridview Populated In The Code Behind?
I have tried a lot and have reached a dead end.

I have a to show multiple gridviews on one page and all these are getting populated dynamically.

i have figured a way to populate the gridview dynamically and display them, but i cannot get how to modify these values and display them as i want.

here is the code. for .aspx page

[code]....

Posted: Nov 16 10 at 22:03

View 3 Replies!   View Related
C# - DataBind User Controls In Gridview?
I got a GridView in ASP.Net in which a user control is placed:

<asp:GridView ID="GVWunitcollection"
CssClass="gridview"
runat="server"[code]....

I bind the GridView to a List<T> filled with custom 'Unit' Classes. Each Unit consists of several properties to fill the usercontrol. (The user control holds a table, and some labels and textboxes).How can I achieve this? Is there a simple way to bind each usercontrol to the appropriate Unit?By the way, this is my way to mimic a "dynamic" behavior of multiple usercontrols on a page. If there's a more simple way, I would like to know how!

Posted: Jan 26 at 11:00

View 2 Replies!   View Related
C# - Show GridView Inside Login With Databind In C#?
If outside the loginView, the gridview can show correctly! Put inside Login View and use below code

<LoggedInTemplate>
<asp:GridView ID="GridView1" runat="server">
</asp:GridView>
</LoggedInTemplate>
((GridView)LoginView1.FindControl("GridView1")).DataSource = query;
((GridView)LoginView1.FindControl("GridView1")).DataBind();

Object reference not set to an instance of an object. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.NullReferenceException: Object reference not set to an instance of an object. Source Error:

Line 22: ((GridView)LoginView1.FindControl("GridView1")).DataSource = query;

How to show GridView inside Login with databind in c#?

Posted: Mar 17 at 11:24

View 2 Replies!   View Related
C# - Databind A Gridview To A Field In A Base Class?
I have the following classes (pseudocode):

Item ( int Field1 )
ItemDetail : Item (int Field2, string field3)

If I set ItemDetail as the datasource for an asp.net gridview:

grid.DataSource = new List<ItemDetail>();
grid.DataBind();

Can I use Field1 in the GridView? If so, what is the correct DataBinder syntax? The following code blows up trying to cast to an Item:

<%# DataBinder.Eval(Container.DataItem, "Field1") %>

EDIT: And I'm a moron. I had copied the gridview and was calling a RowDataBound event handler for a different grid... Sorry to have wasted everyones time, but there is some good info here regardless if anyone has the same question. In the end, the public properties of the base class are binding correctly.

Posted: Nov 16 10 at 15:26

View 2 Replies!   View Related
C# - Extension Method Parameter In Gridview Databind?
I'm binding an object to a gridview. The object (LeClient) consists of several variables, two of which are related to its phone number. One variable contains a string of digits (LePhone) and the other contains an int that represents the country code (LeCountryCode). I have an extension method for strings that works to format the string LePhone and that I'd like to pass it LeCountryCode as the parameter.

So far, on RowDataBound I have an event handler with the following line:

e.Row.Cells[5].Text = (string)(e.Row.Cells[5].Text).ToPhoneFormat(1);

I'd like to replace the 1 with the corresponding country code that's stored in the object LeClient associated with the row. How does this work? I tried

.ToPhoneFormat(e.Row.DataItem("LeCountryCode"));

Posted: Jan 18 at 17:47

View 1 Replies!   View Related
C# - GridView.DataBind Not Refreshing The GridView?
To start I am using a MultiView control to step users through searching. The first page in the MultiView is just a search box with a button to preform the search.

The second page has the GridView, but I would like to keep the search box and button for the user to search again if they didn't find the user they were looking for.

When you search from page one and move to page 2 the GridView shows the correct results. But when it is on the second page with both the GridView and the search the GridView doesn't update. Below is the code I'm using.

[code]....

Posted: Feb 13 10 at 2:08

View 2 Replies!   View Related
Web Forms :: Databind Gridview Based On Selected Value In Dropdownlist
I have a dropdownlistsay ddl1 and a gridview gv1. Based on the value selected in ddl1 ie ddl1.selected value , I want to populate selected rows in the gridview.

dim returnvalue as datarows()
returnvalue=dt.select("month = '10-2005'")

where month is a column in my table The above code works but I want to check if rid matches ddl1.selectedvalue. I have tried this

returnvalue=dt.select("month = 'Cstr(ddl1.selectedvalue)'")...but it doesnt work

Posted: Oct 16, 2009 08:25 PM

View 5 Replies!   View Related
Forms Data Controls :: Get Error On Gridview.databind()?
i am getting following error on gridview.databind() Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack , ThreadAbortException,it was working fine and suddenly getting error, i don't what's problem is?

Posted: Jan 25, 2011 12:12 PM

View 6 Replies!   View Related
DataSource Controls :: Using Stored Procedure And Using Databind For The Gridview?
am having trouble figuring this one out. Am using stored procedure and using databind for the gridview . i got the codes off other sites. I'm guessing its the code that i've underlined, how or what do i use as the datasource for the sorting event. I used the Session for the paging event and that works but not for sorting.

[Code]....

Posted: Oct 29, 2010 11:57 PM

View 2 Replies!   View Related
Forms Data Controls :: Gridview Not Refreshing After Databind?
I'm working on a project where I have to create a page that displays the "health" of a system. I run a query and display the results in a gridview with a red or green icon next to it. This works fine when the page is first loaded. My problem is that I have a thread that runs a query every 30 minutes and rebinds thegridview but the gridview never refreshes even though the data has changed. How do I get the gridview to display the new results? The databound event never fires a second time even though I can clearly see that I have received new data. I assume I am missing something simple but I just don't know what. What am I doing wrong?

Posted: Jun 26, 2010 07:00 AM

View 5 Replies!   View Related
Forms Data Controls :: When To Call DataBind On GridView
So I have a GridView and several events that can be triggered (such as filtering and inserting a new record) to manipulate the GridView. I want to make sure that I'm not calling DataBind on Page_Load, especially since I might have to call it again when certain events fire. Is there a way I can make it so I only have to call DataBind once on the GridView after Page_Load and anything else has fired? Like some event that will absolutely fire last where I can put my DataBind?

The reason I need to do this is because the DataSource for the GridView is set programmatically from a DataView when the page is loaded, so DataBind needs to run every time. Just, hopefully, not multiple times each time...

Posted: Sep 02, 2010 02:46 AM

View 5 Replies!   View Related
Forms Data Controls :: Position GridView After DataBind?
I have a gridview positioningissue that may have been answered elsewhere, but I couldn't seem to find a similar post...

I have a webforms app containing a paged gridview (e.g., 200 records - 50 rows and 4 pages).

When the user clicks on a button in a specific row, another web page is launched toprocess that button click. When the user closes that page to return to the main gridview, the databind event is rerun and the page redisplays the gridview starting at the top. However, I want to have the previous position maintained (like an html bookmark), so that the grid will automatically be scrolled to the the previously clicked gridview page and item.

Setting attributes such as "MaintainScrollPositionOnPostback" do nothing in this case.

Posted: Mar 07, 2011 02:25 AM

View 1 Replies!   View Related
Gridview Databind / Make Column 2 Contain 2 Objects From TheSource?
I'm doing a gridview with an object datasource:

List<MyObject> TheSource = a linq query

At some point, I have

MyGridview.DataSource = TheSource;
MyGridview.Databind();

and an OnRowDataBound event handler that's tied to the databinding.

In that event handler, how do you make column 2 contain 2 objects from TheSource. For instance, in the TheSource, there is a variable for FirstName and another one for LastName. Column 2 needs to contain both the first and last name in the same cell.

Posted: Jan 15 at 0:33

View 1 Replies!   View Related
Forms Data Controls :: Cannot Trigger A Postback / Databind Of Gridview
I am have a page with a couple of dropdowns which serve as criteria for a select SPROC.Once a selection is made in a drop down a panel is shown which contains gridview whose rows have been returned by the select SPROC.If you close the panel and change the drop down selection and then redsplay your panel the data from your prior selection is still displayed in the gridview,
unless you page to the next group of records.

Posted: Apr 23, 2010 11:02 PM

View 2 Replies!   View Related
Prevent Databind On Gridview When Clicking The Edit Template Link?
My Gridview is refreshing its datasource when the edit button is clicked. How can I prevent this from happening? This isn't much of a problem when there aren't a lot of records, but when there are many it takes awhile. The data is already loaded so the edit button shouldn't need to reload the data. The edit button is a template edit button, and I'm using an SQL Datasource that connects to an Oracle database. The SQL datasource uses a control parameter that points to a dropdownlist.

Posted: Aug 3 10 at 20:19

View 1 Replies!   View Related
Forms Data Controls :: Increase SQL Timeout On Gridview Databind?
Getting the following sql timeout on a page System.Data.SqlClient.SqlException: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.

GridView1.DataBind();

While I know I need to review the actual Stored Procedure used, can someone point me to a quick fix to increase the timeout on the databind.

Below is my datasource

[Code]....

Posted: Sep 16, 2010 08:04 AM

View 1 Replies!   View Related
Forms Data Controls :: GridView - How To Add Text To A Column After Databind
I have a gridview which is populated by SQL command at page load. Here is the sample below;

[Code]....

Posted: Dec 28, 2010 07:13 AM

View 3 Replies!   View Related
Forms Data Controls :: DataGridView Equivalent Of GridView.Databind()?
I have spent most of my time writing ASP.Net web pages, using VS 2005. I am now developing some client function for Windows, so I'm relatively less expert in VB.In my Windows program I have defined a DataGridView and linked this to a data table (within a tableadaptor). Now I want to populate it: on a web page's code-behind I would write Gridview.databind(). What is the equivalent with a DataGridView.

Posted: Nov 12, 2010 04:32 AM

View 1 Replies!   View Related
Forms Data Controls :: GridView Links Dynamically DataBind ()
I've this table Table1(ID , LinkURL , LinkText )

I would like LinkText todisplay as alink. And when you clickittakes the value from LinkURL and directs you to another page.

This is the code:

<asp:GridView id="GridView1" runat="server"></asp:GridView>
And this is the code-behind:

connection.Open()

Dim reader As SqlDataReader = cmd.ExecuteReader() [code]....

Posted: Dec 22, 2010 07:42 PM

View 5 Replies!   View Related
Forms Data Controls :: DataBind A Gridview After DropDown Change?
I have a drop down menu that is populated on page load. Below that, I have a gridview that has a select parameter based on that drop down menu's value. I can't get the gridview to populate with data based on the drop down. If I fill in the parameter with a constant, the data pulls fine, but when I switch the parameter to a form parameter, it won't pull.

Here is the relevant piece of the aspx page:

[Code]....

Here is the relevant section of the code behind:

[Code]....

Posted: Aug 21, 2010 04:29 AM

View 3 Replies!   View Related
Forms Data Controls :: Insert Rows In GridView On DataBind?
I have a GridView which is databound to a database table. Let's say each record contains a date and the monetary profit for that day. Now here's the problem. Some dates have no record in the table because the store was closed or it's just so shitty that no profit was made. As a result the gridview looks like the following:

10/01/2009 $200
10/02/2009 $250
10/05/2009 $300
10/07/2009 $210

Obviously if there is no record, no row is inserted into the gridview. Instead, I want the gridview to display the results as follows:

10/01/2009 $200
10/02/2009 $250
10/03/2009 $0
10/04/2009 $0
10/05/2009 $300
10/06/2009 $0
10/07/2009 $210

So in other words, when there is no record, I want a row to be inserted into the gridview with the missing date and $0. How would I acheive this? I'm assuming I'll need to use a DataTable and perhaps do some stuff in the DataBind event of the gridview

Posted: Oct 03, 2009 09:45 PM

View 5 Replies!   View Related
Forms Data Controls :: DataBind A GridView From A Child Form?
When Iclick a button on a Child form how do I get it to do a .DataBind on a GridView in my Parent form?

Posted: Oct 09, 2009 05:20 PM

View 3 Replies!   View Related
Forms Data Controls :: GridView - Databind To A Collection Within A Custom Datasource?
I'm trying to databind my GridView to a custom datasource where one of it's members/fields is a collection.

Custom object Entry

public List<EntryHour> Hours { get; set; }

In practical terms, one row consists of some normal text fields which is easy to handle. However, the Hours field is the nut to crack.

How do I, in the GridView markup bind my textfields in question to the Hours field (which consists of 7 items allways)?

Posted: Jun 14, 2010 10:07 AM

View 7 Replies!   View Related
Forms Data Controls :: Adding A Custom Column To Gridview At Databind?
I have a gridview with a template item containing another gridview. Both get data from a MSSQL datasource. When an item in the 1st gridview is selected, the second gridview is populated with data (master details kind of thing). However before the row is selected I would like a custom column in the 1st gridview to show how many items(rows) are available in the 2nd gridview if selected. As I see it i would need to run a SQL query to get the number or records/rows in the 2nd gridview and put this value in a column of the 1st gridview. How do I go about this?

Posted: Sep 15, 2009 08:03 AM

View 5 Replies!   View Related
Forms Data Controls :: Select In Grid View When Using Gridview.databind()?
I am using a dataset for the first time and so far it is going quite well. The one thing that I have not found in tutorials though is how to add a selectcommand to the gridview when i do gridview.databind()

The gridview is just a simple click and add at this point and my code looks like this:

[Code]....

Posted: Feb 13, 2010 05:04 PM

View 1 Replies!   View Related
Forms Data Controls :: Entity Framework Using 2 Tables Databind() To A Gridview?
I am new to Entity Framework and working my way through it little by little. I think I have it figured out on how to get data into and out of 1 table at a time now the challenge is 2 tables into a gridview.
I have a user table that has a list of threads that a user can mark to track. Easy enough. Assign the userid number & threadid to a table with a push button while the user is logged in and viewing any of the posts that are on that thread. The new challange is to get only the posts that the user has marked to track. SQL easy. Entity not sure what to do.

If I make a view or stored procedure and add it to the database that would be an extra step. To join the 2 tables as in sql Select posts from posts where track.userid = @userid join track on post.userid=track.userid Seems Entity was made to avoid this type of thing. Than once the data is gathered I need to bind it to a gridview()

Posted: Jun 16, 2010 01:20 PM

View 3 Replies!   View Related
Forms Data Controls :: Databind A Selected Gridview Row To A Couple Of Formviews?
I have tried several ways but just cannot figure our how to populate some formviews with the data I have brought up in a gridview.

Here is my code so far. I just showing the code behind because my gridview and forms are not a problem. Where I am stuck is at theGridView1_SelectedIndexChanged at the bottom of the code.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Web;
using System.Web.UI;

[Code]....

Posted: Oct 19, 2010 02:03 PM

View 11 Replies!   View Related
Forms Data Controls :: Gridview CheckBox Missing On Initial Databind?
I created a gridview and added the checkbox in itemtemplate. My problem is this; when I run a query that will populate the gridview the data from Oracle the checkbox does not display in the gridview. However if I do a sort on any column then the checkbox appears. I have googled search like a mad man

Default.aspx

<Columns>
<asp:TemplateField ConvertEmptyStringToNull="False" ShowHeader="False">
<HeaderStyle HorizontalAlign="left" />
<HeaderTemplate>
<asp:CheckBox ID="chkSelectAll" ToolTip="Click here to select/deselect all rows"
runat="server" />
</HeaderTemplate>
<ItemTemplate>
<asp:CheckBox ID="cbDataSelect" runat="server" Checked="true" Enabled="true" />
</ItemTemplate>
<ItemStyle Wrap="False" />
</asp:TemplateField>
</Columns>

Databind after query in code behind

[Code]....

Posted: Dec 09, 2009 06:09 PM

View 3 Replies!   View Related
Forms Data Controls :: OnRowDataBound Or Custom Protected Method GridView Databind?
In a GridView control ASP.NET

OnRowDataBound="gvTest_OnRowDataBound" followed by
protected void gvTest_OnRowDataBound(....){}

OR

Text='<%# BindMyData(DataBinder.Eval(Container,"DataItem.Price"), DataBinder.Eval(Container,"DataItem.CurrencyID")) %>'

followed by

protected string BindMyData(object price, object currencyID)
{...}

Which one is best in terms of performance and coding best practice?

Posted: Jan 06, 2010 03:50 AM

View 1 Replies!   View Related
C# - Using .net Credentials To Log In From A WinForms Application
We have an ASP.net application but some screens are deemed too slow to use by our users.As a result, we are trying to provide a WinForms-based alternative to those data-input centric screens so we can use richer controls like Grids with immediate screen updates and feedback for the user.

Ideally, I would like the users to login to the WinForms application using the same credentials they use in the ASP.net application?

Is it possible?I've found this post ( http://stackoverflow.com/questions/1172069/net-authentication-for-both-web-and-winforms ) but it isn't really answering the question from my point of view... We are not using WebServices, or WCF at the moment and do not plan to use it unless it is really the only way to achieve this.

Posted: Aug 9 10 at 11:30

View 2 Replies!   View Related
3rd-party UI Libraries For WinForms, WPF, MVC, Etc. Are Best?
I work with many diverse technologies, and don't possess the time to evaluate every single UI framework, so I'd appreciate hearing other coders' experiences with various frameworks.

The stuff I've worked with so far (and my perceptions):

WinForms: DevExpress (love the looks, hate the API and bloat), Krypton (free!, looks good, but limited), Telerik (don't like the looks)WPF: have only used WPF Themes pack. Asp.Net: Telerik MVC Controls (love it), jQuery UI (looks great)

Posted: Jan 1 10 at 20:52

View 1 Replies!   View Related
S#arp Applicable In Classic Asp Or Even WinForms?
I know S#arp architecture is built for ASP.NET MVC. But I'm wondering if it can be used in classic ASP.NET (WebForms) or even desktop applications like WinForms or WPF.

Posted: Feb 7 10 at 8:26

View 3 Replies!   View Related
Web Forms :: Using Winforms Control In Web App?
I need to know whether there will be any problem using win forms control as a custom control in my web app. Problems can be anything related to display, environment where the site is run.

Reason for using is I am not getting the treeview events in web which are there in win app. I need to implement drag drop of treeview nodes to a listbox.

Posted: Aug 10, 2010 09:11 AM

View 2 Replies!   View Related
Copyright 2005-08 www.BigResource.com, All rights reserved