Remove Row From DataSet If Bound Table Is Sorted?
Aug 31, 2010
I have a DataGridView that is bound to a DataSet and I allow someone to remove a row from the table and I remove the row from the set. My code looks like this:
ds.Tables(0).Rows(dgCourseList.SelectedRows(0).Index).Delete()
My problem I found is if the grid gets sorted the index of the rows no longer corresponds to the indexes in the DataSet. As a result the wrong rows get removed from the set.
Can I solve this problem with maybe having to sort the DataSet on some sort event of the DataGridView?
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Aug 26, 2009
I'm calling a webservice using the async method, and catching the response with the completed event. When I first open the form, it all runs fine, however the second time I run the form I get the above error when attempting to sort the data.
Strangely, if I comment out the sorting code, it loads perfectly, and I can manually sort the dgv by clicking on the columns.
Code:Private WithEvents Tempws As ws.wsPrivate ID As Integer
Public Sub New(ByVal ID As Integer)
' This call is required by the Windows Form Designer. InitializeComponent()
[Code].....
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Apr 12, 2011
I have written some functions that I have in a module. In one of the functions I would like to update a table that is in a dataset. I would like to do this with this function and not from a form class where the table could be bound. I need to call the function from various places in the application.
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Apr 14, 2009
Visual studio 2005 - vb.net..I have a user control on a form containing 15 combo boxes.All contain Y, N, and blank (for Yes, No, or blank) in the Items Collection property.Each of the combo boxes have a binding source to the same table, different fields.When you select a value Y, N, or blank for any of the fields and do a save, the values save while the application is open.Once you close and reopen, the values are gone.It appears the dataset does not recognize the change, so the values are not getting stored in the database table. Is there something I can do or put in one of the events that would identify this as a change.
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Jan 13, 2010
What I am trying to do is sort a datagridview and remove a row from its sorted position to the 1st row.
The problem I am experiencing is as follows:
in the source below, when the code runs "MeanRow" is populated with what is required. As soon as Rows.Remove() executes, the MeanRow datarow is lost. Why would this be if I'm declaring a new variable and simply setting it?
Code:
MeanRow = r
TabGrid(dgv.Name).Datatable.Rows.Remove(r)
Code:
Private Sub dgv_Sorted(ByVal sender As Object, ByVal e As EventArgs)
Dim MeanRow As DataRow
[Code].....
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Dec 4, 2009
I have a few classes, one is a form, the other is the source of the datagridview. I want to be able to sort the columns of the datagridview by clicking on the header. Here are the classes that I am dealing with:
Imports DiscoveryByte.AddTools.Misc_Tools
Public Class ViewDiscoveryFlashCards
Private DBBindingSource As New BindingSource
[code].....
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Jun 4, 2010
I have a DataGridView that is bound to a DataSet I created from a database table named Contacts. The Contacts table contains a field called StatusId. StatusId is a foreign key to a table called Status. The Status table contains StatusId and StatusName.
[Code]...
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Jan 2, 2012
I have a form and it is databound to a Access table with the standard TABLEADAPTER wizard. All works well HOWEVER, new records are not displayed in sorted order.When I add a new RECORD, it can go anywhere within the table. When I move around the table using the TABLEADAPTER Manager, the newly added record does not appear in sorted order.Furthermore, when I restart the application and show the form (which issued a FILL command), the records are not sorted.The SELECT I am using is fairly simple:
SELECT [list of fields] FROM TableXYZ ORDER By [sort field]
This HOWEVER, does not appear to work.get the table to be sorted when filled?Other information - the table in question has the field that is specified in the ORDER BY clause which is the same as the Primary Key.As an example, in the table there are records with the following KEY:
4313, 4314, 4315
When I insert a new record, it might fall between 4313 and 4314. Lets assume I add 9999. I expect it to be at the end of the list however, it appears between 4313 and 4314.FYI Also tried this in the code as well:
TableBindingSouce.Sort = "field1 ASC"
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May 5, 2012
I use a dbDataAdapter to populate a DataTable from an unlinked oracle database.I have a dbDataAdapter that I want to insert rows into an SQL Server table using SQLCommandBuilder.I have been trying all day to update the DataTable that references the SQL Server table with the data from the Oracle DataTable so that I can insert the rows.
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Jan 11, 2012
I have a datagrid which is already bound to a dataset, I need to get this dataset,make changes on some data, then rebind the datagrid with the modified dataset.
here's my code
[Code]...
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Aug 23, 2009
I have a ASP.NET web page which has several XSLT's to transform data in a xml file. The XSLT manipulates the data and presents it in a table
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Apr 24, 2012
I have a ASP.NET web page which has several XSLT's to transform data in a xml file. The XSLT manipulates the data and presents it in a table.
Is it possible to allow the user to click on each of the table headings to sort the values in ascending or descending order?
The back end code is in VB.net in case it helps?
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Dec 26, 2010
I have a login form that consists of 2 text boxes: txtUser, txtPass. Now these are not bound to any data table & I don't what them to be bound. When a new user enters his user name & password, I want to add these on a data table that has two columns: User, Pass. Data table information: Data Source = Login.accdb, Data table = LoginTable, Connection = LoginCn. I use visual basic 2010. So how do I do this?
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Nov 27, 2011
i have 3 textbox and 1 listbox bound to the same datatable. when i insert new row to the datatable, there are 2 rows affacted in datatable, one row in datatable is replaced by the newly added row, and this new row is also insert into the end of datatable, while this modified datatable is updated into the database, only the inserted row is updated, the other modified row did not affacted in database.
here is my code:
Private Sub Form1_Load(ByVal
sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim DA As MySqlDataAdapter
[code]....
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Apr 9, 2012
Okay so I have a datagridview that is bound to a dataset. I have a column called type is a string char of either C, R, A, or V. The problem is that I want to sort the datagridview rows using that column and do so in the order I just gave so I want rows with C on top and then R and then A and then V. Because these aren't alphabetical, how could I sort the items this way? I did look into the icomparer, but really wasn't able to figure out how that works.
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Jan 28, 2009
I'm using vb.net in vstudio 2005. how do I get the value from a combobox when I have it bound to a dataset?
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Dec 1, 2009
I want to evaluate the current DataItem being bound to a repeater and remove it from being added if my condition meets. I would have thought that setting e.Item.DataItem to Nothing would work, but it does not. Any ideas how to not add a DataItem to the repeater when a certain condition meets?
Protected Sub rpt_OnItemDataBound(ByVal sender As Object, ByVal e As RepeaterItemEventArgs)
If e.Item.ItemType = ListItemType.Item Or e.Item.ItemType = ListItemType.AlternatingItem Then
If true Then[code].....
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Jan 7, 2012
I built my programs in VB 2010 using a temporary dataset on my computer.I am not ready to have them address the dataset on the server, but when I call up the dataset to change the path, the full path is light gray and I can not change it.If I delete the dataset, it will ruin all of the forms that automatically populate from the dataset. Is there an easy way to change the full path of a dataset?
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Feb 15, 2012
I am binding a dataset (dsTest) with a table called "TempResult" to a datagrid (DatagridView1).The purpose of the datagrid is to display test labels (set elsewhere in the software) and to allow the user to enter results into an empty column titled results.To achieve this I've filled the dataset with the required test labels then added a column called "Result" with a default value of 0.00.The user can enter numbers into the "Result" column on the grid then click a button "ADD" to update the changes to the datatset,When I first open the form the datagrid shows the correct information and any changes made to the Result column are updated correctly - all is well.
Private Sub Add_Results()
Dim ResultColumn As DataColumn
Dim Rows As Integer
Dim i As Integer
[code]....
If I close the form and open it up again (i.e. the user wants to add more results) the datagrid shows the results entered the last time the form was use and any changes made to the grid are not updated and the form won't work again until the software is reloaded.
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Jun 15, 2010
I don't normally use strongly typed datasets, but I am maintaining an existing application that uses them.This application has a form to edit rows in detail view, so we have the navigator toolstrip with nav buttons on top, including one to add a new row.When this button is clicked, I need to update one of the bound text boxes with a value from the underlyingThe field in question is defined as nvarchar 25 It's almost always integers in this field, but one row has a string.In the dataset, I have a table adapter to go get the max value + 1 where the field is numeric, like this:
SELECT internal_num = CAST(MAX(internal_num) + 1 AS NVARCHAR(25))
FROM dbo.invoice_log
WHERE ISNUMERIC(internal_num) = 1
[code].....
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Jul 10, 2010
I've added a Data Source to my project and a table from that Database (SQL 2005)
It is a rather large table and takes a LONG time to load the form. I was thinking of loading the auto-generated "Fill" statement in a Backgroundworker, but it doesn't seem to be doing anything. I have the Fill statement in the DoWork event, but it never "finishes" it seems. My BindingNavigator stays at 0.
I looked at jmc's sig link and everywhere I look, it seems like I'm going to have to iterate one at a time, but how can I do this for a bound datasource?
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Aug 30, 2009
I have a DGV which I am laying out in code as it is unbound. The problem I have is when it is inside a group box, it moves outside the group box to the top of the form.
If the DGV is not enclosed in a group box it stays put. I have tried docking the DGV to the group box but that does not work. If I have a dataset bound to the DGV, then there are no problems.
How can I keep the DGV inside the group box when it is not bound to a dataset?
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Apr 11, 2011
I have added a SQL Server datasource through the wizard. I created my forms which were bound to the dataset. Is it possible to change the datasource and dataset names while updating the dataset the binding controls of the form?
For instance, Server 1 has DB1 and Server 2 has DB2 (DB1 & DB2 store the same information/tables). Is it possible to keep the forms and only update the binding information if I want the forms to use DB2?
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Aug 6, 2010
How to bound this dataset to datagridview?
[Code]...
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Sep 21, 2009
I have an untyped dataset which is programmatically bound to a form in vb.net 2008. The first record in the dataset is not necessarily the record the user selected to view. I need a way to, after the binding is done, move the dataset to that particular record. I have a currencymanger in play for use of displaying the current record of how many records. I think I need to do a search and find the row number of the select record and then use the CurrencyManager.postion to do this but have had no luck in 3 hours to locate anything I can use.
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Jun 11, 2010
I add a row to the DataSet using the following code:
Dim NewRow as DataRow
NewRow = gds.Tables("TitleDataSet").NewRow
NewRow("Title") = txtTitle.Text
NewRow("Local_number") = nubLocalnumber.Value
NewRow("Number_suffix") = txtNumberSuffix.Text
etc.
This code executes without errors but the bound DataGridView remains unchanged (without including the new row). Obviously I am doing something wrong or I am omitting a vital command. What do I need to do in order to make the new row appear in the DataGridView? I did not choose to bind the DataGridView directly to the database table because the database is selected by the user at execution time. Instead I bound the DataGridView to the DataSet. I included the command:L
dgvTitle.AllowUserToAddrows = True
but that did not have any effect.
Solved. Was missing the final command:L
gds.Tables("TitleDataSet").Rows.Add(NewRow)
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Jul 31, 2010
I keep getting this error message (see image). What's weird is it's coming from a "typed" dataset that is bound to a DataGridView and even though I get this message, the DGV still loads with all the data. I've bound this dataset to the DGV thru the designer. Here is the line of code that is erroring out:
Me.adpItemMaster.Fill(Me.JewelryDBDataSet18.tblItemMaster)
I checked the table and the primaryKey for the tblItemMaster is unique for each row.
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Feb 18, 2011
The following code works (rows are filtered by the select expression), but then all the controls in the datarepeater are empty. When set to .DefaultView all records return and all controls have their values.
Private Sub CheckBox_FilterApplied_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles CheckBox_FilterApplied.CheckedChanged
If CheckBox_FilterApplied.Checked Then
[code].....
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Sep 8, 2009
I have an app that downloads from a networked SQL database to a dataset and also to an XML file on laptops. Laptop users will take their executable and the XML file which the local dataset will read.Although I can get gridviews etc to bind to that dataset syntax such as
"TextBox1.DataBindings.Add("Text", ds, "fname")"
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Feb 23, 2011
I have a list box that is bound to a datatable, which works fine. The question I have is this. I have a list of values in the form of a sqlDatareader that I want to use to select values in the list box, that is to say if the value from from the datareader matches the value member from the row in the listbox then select the row. I've come up with the following code, but can't find the syntax to utilize the SetSelected method.[code]...
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