AddNew Adds Blank Row Instead Of Adding Data?
May 15, 2011
I'm trying add a new row to my databaseTo add a new record a pop up form opens (form2) with a textbox for the user to input their name, they then click the save button and the popup form closes and the main form (form1) is still showing and the added row seems to updated in combobox although it is blank!.This causes a new blank row to be added to the database - the data in the textbox is never saved to the database
vb
Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
[code].....
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Sep 20, 2011
I am using vb.net 2010. I have a datagridview whose data source is a data table. I dynamically add rows to the data table.
[Code]...
After adding the new row, m_table is correct. However, DVGCusClient not only adds this row, but also adds two additional blank rows at the bottom. I have no idea where these two blank rows come from. Why I use above code is as follows: Use a data grid view to display data. When a user clicks a row, another form is opened which allows user to search/input some data.When the user closes the form, all data is saved to a data table and shown on the data grid view.
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Aug 21, 2011
Im using a bindingsource to add new records to my db using bindingsource.addnew()When this is evoked, it seems to automatically increment the recordcount and then blanks out the content of every bound to that tables bindingsource. So that all fields in the new record have to be filled in manually.I would like to be able to pre-fill some of the data in the new record. for instance, when a user adds a new record, have a specific column in the new record automatically populate with the selectedvalue of a combobox.I assume this means I may have to manually code up my own addnew routine, but google has let me down on where to start.
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Feb 23, 2010
I have an array x in size of objects (between 1 and 100) and I want to increase the size to 101 ... I've resized the array and that adds the objects but unfortunatly (not suprising) the added items have not been initialised, do I've reverted to using a do while loop and adding the elements indiviually, but looking at the code around it where addrange is used extensivily, I was just wondering if that was a neat vb.net way of doing the same thing
Bit of a learning question, just looking for neat ways to do the same thing
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Apr 27, 2010
I've inherited a form that has a DataGridView that is bound to a dataadapter and it is connected to a binding source. Within the DataGridView is a combo box that is bound to its own bindingsource which basically just calls a stored proc to bring back the possible values for the dropdown combo control
With a blank new row and sometimes even with an existing row, this value for the combo box can be NULL which is a legitimate value for it if no value selected. Problem is everything is so tightly bound if the user mistakinly clicks the dropdown then a value is populated and there's no way to get back to NULL
I've tried to catch the mousecelldown event and others to try to catch this before a value is selected but the Cancel=True doesn't work - I can catch the event but don't know how to return the cell to unclicked or reset it to NULL or pre selected value if NULL I know how to at a new row with the datatable and then set the combo datasource to it and I have my null blank value but with a tightly bound control how do I add this row?
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Aug 28, 2011
I've been having fun with the xmldocument class recently but am struggling with namespaces. I've been trying (with some success) to merge parts of one XML file into another. The problem has been that one of them utilises a namespace on one of the interior nodes and therefore my xpath queries where failing when I tried to create a nodelist. This I fixed (after reading some great examples here) by adding a namespace manager and changing my query accordingly.
Everything looked fine initially and I appeared to end up with the desired effect, but the XML file that was created was failing in the target application. What I didn't realise at first (due to the length of the xml node values being wider than my screen!!) was that when I imported the nodes from one file to another, a blank names space was being added to the end of each node (xmlns="")
' load the xml template from the project resources
Dim fdf As New XmlDocument
fdf.LoadXml(My.Resources.fdf_template)
[Code]....
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Jul 15, 2009
I have a log that is saved to a text file when i clikc a button.It then adds it self to a text file and a listview.
[URL]
as you can see there is a blank space.here is the code i use.
Code:
'Write details to file
Dim LOG_NAME As String = "C:Simple HostUrlLog.txt"
Dim iTemp As Integer
Dim logArray(1) As String
[code]....
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Apr 9, 2012
When I load a page into the web-browser control I have a text box and a button to insert more html and various other, but when I do so it redirects to about:blank. How do I stop this from happening. I cannot find anything that would hint me to fixing this problem anywhere Also this is how I add text to the page:
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Oct 6, 2010
I am struggling with a simple datatable issue. The following takes a data table that is on the form and adds an arraylist to it as the data source. The data that shows up in the datatable is the length of the value of the element in the arrayList.
test.Add("cjdsnthegtrk")
test.Add("cjdsk")
test.Add("cjdsk")[code]....
How do I control what is displayed in the columns? What I am ultimately trying to do is have a datatable that the operator can edit and the changes reflect in the underlying data structure.
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Mar 24, 2009
basically i fot a form with 5 questions u could say and i got a toolstrip with a progrss bar wat i want to do is as each question is ansered in reality by the user i want the progress bar to go up.
min value is 0 max value is 100 as ther is 5 questions as each questiion is ansered the bar shoul go up by 20
so they anser Q1 it goes up to 20 they answr Q2 it goes up to 40 until they anser the last questyion and the bar is full
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Mar 17, 2011
I need to read an xml document from a database record into an XDocument object in order for it to be deserialized. So that the deserialization will work, I need to apply a specific namespace to each of the level 1 elements. So XML looks a bit like this:
[Code]...
How do I prevent the blank/empty namespace being added to each child element of the element to which the required namespace has been applied?
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Feb 21, 2011
I am not sure about method to publish my program. But basically when I publish it no errors at all...I have database name usurfdb.mdb. I have set it build action to content and copy to outputdirectory = copy if newer.Should I amend anything on my usurfdbdataset1.xsd as well like I did on my .mdb?
Dim con As New OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|u-surfdb.mdb;")
I am wondering, When I try to locate the location of my database after the program
I have 2 inputs from 0-180 for x and y i need to add them together and stay in the range of 180 and 0 i am having some trouble since 90 is the mid point i cant seem to keep my data in that range im doing this in vb.net
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Jul 1, 2010
I'm trying to fill a ListView control in a VB2005 project. It works fine from underpinning (Access) database IF all the data is present. However, if a field is blank (in this case - a field called "Actual Date" which is meant to be blank for this record), the ListView will stop populating at that point.I thought this may have been the 'CausesValidation' property of the ListView but that doesn't seem to change the behaviour.Is this an inherent feature of the ListView - if so it seems daft - or is there a property I need to change or an override that I need to code?
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Nov 15, 2011
I have a datagridView,which is filled with the Click of the Button.My Issue is i can see the data only when i select a row.When no row is selected by mouse then its just showing blank cell,whereas data is actually there in the datagridView.I know its something with the color setting from the DatagridView Properties.I have tried and corrected all the cell Style properties related with that DatagridView.And set the Cell Style properties exactly the same as of my other datagridview,which is working fine.
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Apr 2, 2010
I am trying to pull sql data into a text file. The code works just fine, until some new data comes in from lazy employees and a couple fields (used for notes/comments) are now left blank. Originally I've never seen them blank so I didn't think anything of it.
col2 = myreader.GetString(1)
It will error if the field is ever null - I even tried using a case when:
case when note is null then '" & empty & "' else note end and set the variable emtpy = '', but vb still thinks that it's null and errors?
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Oct 31, 2011
I'm currently writing a small app that takes data provided by an SQL stored procedure and makes it available for easy export for non-tech savvy users. I'm trying to make this as generic as possible, in that you should be able to plug in just about any SP and follow my template to have an export utility. I'd like to add a way to get the column names before running the SP from the SP itself. I had assumed you could just run the SP with impossible values so nothing is returned, then get the columns from the resulting VB.NET DataTable. However, if there is no data returned, the column names aren't returned either. How can I get the column names from the SP without having to hard-code them?
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Mar 4, 2012
I would like that someone show me (with code) how to add a new row to a bindingsource. The same thing that the bindingNavigator does but writting myself the code.The fields of the table appear in the form using TextBox. When I click the button "ADD NEW", the textBox must be cleaned and must be ready to introduce a new row.
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Aug 6, 2009
what is the substitute for ADDNEW function in VB5 at the newest VS2008 their there was just recordset to which u apply this function then allwing u to add a record to a data base?
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Aug 25, 2011
I use an OLEDB connection to read from an excel database, and this loop to read in all of the data from each of the columns
While reader.Read()
For i As Integer = 0 To reader.FieldCount - 1
temp = reader(i).ToString + ControlChars.Tab
output_file.Write(temp)
[code]....
Some of the columns contain date information, which are read in fine (usually as a string "2/20/2011" or so), but the headers of those columns are read in as a blank "". The headers for all the other columns read in fine, but not for the date containing columns.
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Jan 16, 2010
I need to strip out part of a datafield namely Column name "City" the data provider adds an abbreviation to the end of the City name Example: Houston[HST] I need /want to strip out the [HST]been trying to modify my statement with no luckI am using Jet 4.o and database is a .txt or .csv file
OleDb.OleDbCommand("Select *, (([AddressDisplay])&',' &([City])&',' &([State])&',' &([ZipCode])) AS Address, IIf(IsNull([BathsQuarter]),0,[BathsQuarter]*.25)+ IIF(IsNull([Bathshalf]),0,[Bathshalf]*.5)+ IIf(IsNull([Bathsthreequarter]),0,[Bathsthreequarter]*.75)+ IIf(IsNull([BathsFull]),[BathsTotal],[BathsFull]) AS BATH From " & Me.OpenFileDialog1.SafeFileName & " Where ListStatus <> 'Closed Sale'", con)
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Mar 8, 2010
Saving data from textboxes to a dataset Default Values - Binding Navigator But i could not do it or didnot understand how to do it. I have a Binding Navigator created by the wizard, I want to put a value "A" in a Textbox when adding new record (press +). I had tried to use this code in txt_site_GotFocus and BindingNavigatorAddNewItem_Click
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Jun 19, 2011
I need to insert values into a text-box in a database form, after a 'Add new record' event has been executed
If i code the 'add new' button click event on the binding navigator my code is run first before the record is inserted. This over rights the displayed record then the new record is inserted. Where can i place my code to run after the record has been inserted
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Dec 21, 2011
I think I started out with a misunderstanding of what happens with addnew() and canceledit().
I have a strongly typed datasource in memory.
I call bindingsource.AddNew()
Later I find that the record the user was trying to add already exists, so
bindingsource.CancelEdit()
I have not set any properties other than datasource on the bindingsource.
My assumption was that the CancelEdit() would rollback the blank row added by the AddNew(), but I'm getting some odd errors which lead me to believe this is not true.
Could someone verify that CancelEdit() leaves the new row?
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Feb 23, 2011
I am trying to use a bound datagridview and through the add button on the bindingnavigator adding a new row to the bindingsource and then pass two variables to the datagridview in the new row so they can be associated with the proper ids. I then have a save button for when the end user is done inputting the rest of the data for that record.
The code is below:
Private Sub BindingNavigator1AddItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
AddressesBindingSource.AddNew()
AddressesDataGridView.CurrentRow.Cells("caseNumber").Value = Me.CaseNumberTextBox
AddressesDataGridView.CurrentRow.Cells("interestID").Value = Me.InterestIDTextBox
End Sub
I am attempting to convert and Access CMS to VB and possibly vb.net.
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Jun 4, 2010
I have a text box which I'm saving to a database. Before doing a addnew which add a line to the database with a Id number and a blank item, I wish to test the textbox for actualentry before. Here's code I'm tryin
If
Me.TextBox1.TextLength > 0
Then
[code].....
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Jun 1, 2009
I just don't understand what's going on - it seems to be "inserting" bogus rows into the table as I step past each line of code here.
[Code]...
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Jul 12, 2009
I'm trying to fill some textboxes programmatically after clicking the bindingnavigator add button but the textboxes wont fill..Using the listchanged event of the bindingsource doesnt work neither..[code]
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Feb 8, 2010
[code].....
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Jul 19, 2010
I'm using a dataRepeater which is unbound to a list of Objects ( as I need to have two types of object in the dataRepeater).I'm using the following code to populate my dataRepeater
Private Sub loadDeviceDetails(ByVal owner As Mi2.MiOwner)
............
Dim listDevices As New List(Of Object)
Dim c As Integer = 1
[code]....
For some reason the first drawItem runs once, as expected. therafter it runs twice for each new item that is added to the dataRepeater.
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Jan 19, 2009
My problem with AddNew. It really is somewhat simple, but I can't figure out the solution. I have a form where I show a list of my rows with a given a table. The user can then select a row and press clone, which then will try to make a copy of that row.
Here is a snippet:
Dim rowToCopy As cmaDBDataSet.cmaPropertyRecRow
Dim originalID, newID As Integer
rowToCopy = CType(CType(Me.CmaPropertyRecBindingSource.Current, DataRowView).Row, cmaDBDataSet.cmaPropertyRecRow)
originalID = rowToCopy.id ' id of row to be copied
[CODE]...
.... and continue to copy the rest of the data to the newrow...One of the items in the row is obviously a primary key called id. I can not copy this data since I am creating a new row. My problem is, how do I set that value!? or atleast retrieve the value for the newly added table. I need that value so that I can call another form to actually allow the user to modify this newly cloned data. I tried using EndEdit, UpdateAll, no worky. THen I thought I could assume that the newly added row would go at the end of the table so I used MovedLast then got the currentRow id from there... That worked well until we did some deletes within the table.
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