Rebind Datagrid To Display Changes In .net?
Jan 19, 2012
I have the following code that refreshes the datagrid in the form after the update is made to the database. My question is why do I have to clear the datasource and then re-add it to get the changes to display. I would think that the refresh method would do this, but I can't seem to get that to work. Is there a more efficient way to refresh the datagrid rather than resetting the datasource?
Public Sub addPlan(ByVal planname, ByVal plannumber)
Dim planinfo As New changeDatabase(planname, plannumber, planAdapter)
planinfo.addPlan()
[code]....
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Sep 16, 2009
I have a DataGridView with two DataGridViewComboBoxColumns. I want to use the selected item in the first column to trigger a re-population of the items in the second column, on a per-row basis.
Here's the code I have so far. "addlInfoParentCat" identifies the first column, and currentRow.Cells.Item(1) is the DataGridViewComboBoxCell that I want to re-populate. ExtEventAdditionalInfoType is a type I defined that contains the string/value pairs.
Private Sub dgvAdditionalInfo_CellValueChanged(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgvAdditionalInfo.CellValueChanged
Dim currentCell As DataGridViewCell
[Code].....
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May 4, 2009
I have a Winforms application and a combobox has it's datasource set to a DataTable when the form loads. The data displays fine in the combobox. then after a user clicks a button I want to create a new DataTable and assign that datatable as the datasource for the combobox.
The problem is that after setting the datasource to be the new datatable the items in the combobox don't change. Here is the code I'm using.
[Code]...
Does anyone know how to make the correct data be displayed in the combobox the second time I assign the data source for it?
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May 23, 2011
I have a search form on that will be pulling search template queries from a table in the underlying (an Access db on a share). The search form has a calendar control for filtering by date range, a listbox containing the names of the search templates, a second listbox which lists the fields in the selected template, and then some controls which show/hide themselves depending on which field is selected so that the user can pick a field and enter it's unique criteria in the appropriate control for filtering. Below these controls is a DataGrid, which will obviously display the results.
The problem is how to dynamically "transform" this DataGrid to display the selected search template. These templates do not represent tables in the underlying; rather they represent preconstructed SQL queries (stored in a table) which are essentially SELECT queries with joins and no WHERE clause (so they are the results of multiple tables joined together by their keys).
To be honest, I'm having trouble even generating the LINQ queries to represent these template dynamically, but that's not as important, since I can manually translate the SQL queries into LINQ. This is definitely not the preferred method, as the whole point of putting these templates in a table, rather than code, was to allow for future additions without rebuilding/redistributing the application interface.
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Sep 11, 2009
Is there a way to trigger a GridView rebind from an html markup page using jQuery or jscript?
I have an ActiveX download control which passes all events via jscript.
So, a have a download complete event on the markup page but not the code behind.
Here is the main aspx page:<asp:Content ID="Content1" ContentPlaceHolderID="Head" Runat="Server">
<script type="text/javascript" src="aurigmaiuembed.js"></script>
<script type="text/javascript">
function FileDownloader_DownloadStep(Step){
//The file list is going to be downloaded - "2 = About to Start"
if (Step == 2){
[Code]...
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Jun 6, 2011
I am new to VB.NET.I am creating an database windows application in VS2010 and SQL server 2008 express.In one of my form i have a datagrid.My requirement is that i want to display the sum of an column of a DB table and other related data from other tables in the datagrid which is having 4 fields :1. MatNo , 2.Quantity ,3. Opening Stock , 4. Closing Stock Db table1 hav following fields : MatNo , Qty1 Qty1 is the field for which i hav to find the sum against MatNo entered by user.In Db table2 hav again following fields : MatNo , Qty2 Mapping of data to datagrid : 1. MatNo : will contain the Matno entered by user.User can also enter a range of material like from 1000 to 2000.2. Quantity : For each of the material entered calculate sum of QTY1 from Db table1.3. Opening Stock : value in Quantity field of datagrid - value of QTY2 from Db table2 based on some select query )
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Mar 15, 2012
I have tried googling so much that I have given up trying to look. I am trying to display a dataset in a wpf datagrid. After that I am going to need to display the individual column value in textboxes. I can then change the value in those textboxes and pressing, say, a commit button, to commit the changes to a database. Here's the code I have so far.
Dim con As New SqlConnection
Dim dbConnString As String
Dim ds As New DataSet
[code].....
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Jun 29, 2009
it is possible to display image in data grid?
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Jun 6, 2011
How can one search for multiple items at once and display the result in a datagrid? for example, i want to search for multiple mobile numbers (in sql server database)at once and display the found numbers and their corresponding names.
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Nov 1, 2011
I have a datagrid that displays data from an xml file:
[Code]...
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Jul 6, 2010
[code]... How can i use a datagrid to display this information? I get it to display in a list box but cant figure out how to use a datagrid
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Feb 16, 2010
I have a question about a datagrid filled by a SqlDataAdapter. How to display changes on the datagrid as they happen in the database?
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Mar 27, 2009
I have a parent repeater with nested repeaters.My problem is I am trying to use 'Next' and 'Previous' buttons to rebind my repeater (rptTabContent) and thus the inner repeaters also, but when I try to manipulate the state of these links during the ItemCommand event they are overwritten by the bind.
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Jun 18, 2012
It was written in vb6 and im trying to rewrite it in vb.net. I've completely stripped the program down from all the unneeded fancy addons and now just have the needed code to run it. The program retreives the records, but does not populate these records onto a datagrid.
Heres my Form code (Form1)
Imports ADS_SQL_TEST_VBNET
Public Class Form1
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
[Code]...
I think the problem lies within the LoadDataBound() Sub routine, but I can't say for sure since I was unable to fix this myself.
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Feb 12, 2012
I have my list box items displayed in the listbox. When I selected one of the items in the list box, related records have to be displayed in datagrid.
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Mar 5, 2009
I have a series of arrays each containing various info.
Is it possible to display this data into a datagrid and then sum op the totals?
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Oct 16, 2011
I'm new on this forum. I want to ask how to display data from datagrid into textbox. I use a sql database.
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Apr 6, 2012
i have started learning wpf and now i am up to datagrid.bit i am stuck here. coz the code which i used for wfa datagrid doesnt work with wpf. it gives many error.including for connection string.
1) connect to ms access 2007 database.
2) configure datagrid
3) display data from table into datagrid?
table - name = test, field = ID, Name.
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Jan 25, 2010
I am reading a xml file and display all the data in datagrid view. But when I chose to display data of just one column only the data comes in the dgv but no column header. Same problem shows up, if I chose to display a particular row of a particular column. How can I fix this ??
Private Sub all_columns()
Try
ds.Tables.Clear()
[Code]....
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Jun 21, 2010
I have a form with a datagrid, few buttons, and textboxes. I can add the new record in data table and can display in datagrid. The problem is that... the new record which i have inserted in data table is been displayed at the last row of datagrid which i am having trouble finding it out whether the data is been inserted or not.
1. my question is how to display new record / row inserted in datagrid at the first, so that i can see the data is been added.
2. how to display numbers of record which i have seleted in data grid e.g. 1 of 20 when i select first row and 2 of 20 when i select second row. i can display only total number of records of datagrid.
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Jun 6, 2011
I have created a form that allows me to search customers from a datagrid table which holds the information from the customers table. I use a textbox to enter the phrase to search for and a search button. I can find the records within the datagrid table but it only selects them. I want the datagrid to only display the records found.[code]...
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Aug 9, 2011
I cant figure out how to show the records from the datagrid to textboxes
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Aug 10, 2009
im using this code to display records in a datagrid.. DataGrid1.DataSource = mycls.ShowData
mycls.Showdata is a function that in a class that i used to display data.. what i want is to create a progress bar that indicates the actual loading of the data to the grid.. cause it has some delay in displaying if data is to large..
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Apr 1, 2009
I have Search form where I display the searched content on a datagrid. What I want is to display the content that I have on the datagrid on a crystal report.
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Apr 16, 2010
i have this code to display table in datagrid
vb
Private Sub ComboBox2_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ComboBox2.SelectedIndexChanged
Try
[Code]....
so the problem is when i change the combobox3 index the datagridview dosnt change unless i reselect from the combobox2 so what can i do to make the datagridview display the Sql1 when i change the combobox3 index without the need to keep changeing the combobox2 index
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Jun 22, 2009
I'm using VB 2005, how do I open a CSV file and read the columns/rows and display the values in a datagrid?
CSV file example: jsmith,jsmith@hotmail.com
I then want to perform an action on each row i.e. each user, how would I do this?
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Jun 4, 2012
I consider myself a very patient guy with a whole lot of determination to get things working within say, a program i'm working on. However, I feel that I am only wasting precious time that I could be using to actually gain knowledge in something rather than hitting my head against a wall accomplishing nothing. It was written in vb6 and im trying to rewrite it in vb.net. I've completely stripped the program down from all the unneeded fancy addons and now just have the needed code to run it. The program retreives the records, but does not populate these records onto a datagrid.
form1
Imports ADS_SQL_TEST_VBNET
Public Class Form1
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs)
[Code].....
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Jan 29, 2010
im trying to rewrite it in vb.net. I've completely stripped the program down from all the unneeded fancy addons and now just have the needed code to run it. The program retreives the records, but does not populate these records onto a datagrid.
form1
Imports ADS_SQL_TEST_VBNET
Public Class Form1
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
[code]....
I think the problem lies within the LoadDataBound() Sub routine, but I can't say for sure since I was unable to fix this myself.
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Jul 9, 2011
I'm using a DataGrid to display the below custom classes via a BindingSource, I'm trying to figure out a way to save them to a file either by serialization or by some other method. I've tried a lot, but I think it has a hard time serializing because the Account object has the CharacterList object or something. [code]
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Jun 6, 2011
I have a working code that exports the datagrid into XLS. However, the datagrid results does not show on my aspx (html) page. It only shows on the page when I comment out the part that exports it to xls. I am not sure whether it should show by default when exporting.Basically, what I want to have is when I click my export button, it should display the datagrid on the page as well as popup an excel "open, save, cancel" window for the export.
Here is my function for referece:
Public Sub Convert(ByVal ds As DataSet, ByVal Response As HttpResponse)
Dim attachment As String = "attachment; filename= ExportPRFs_" & Today() & ".xls"
[code].....
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