VS 2008 Manually Updating Datagridview?
Apr 23, 2010I would like to update data from my datagridview to ma database manually.
How should I determine which rows were edited?
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VS 2008 Manually Populating And Finely Tweaking A DataGridView
Sep 23, 2009I've been playing with a DGV. Let's say for my question here, I want a grid that is 10x10. I would like the font in each cell to be Arial 10 regular. Only one character will be in each cell (I'll use "M"). I would LIKE the cells to be 17 pixels by 17 pixels. But, if I manually force the column width to be 17, I get about half of my M and three dots "M...". I'm thinking this is a padding thing but as far as I can tell, everything is set to 0. See code and then more comments below:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
With DataGridView1
[Code]....
Question 1: How can I reclaim some of what seems to be lost space around the cell contents so I don't have to make them bigger than they need to be? I'd like them to be 17x17 with the single character centered within.
Question 2: Do I have to manually set the height and width of each row and column? I'm thinking the RowTemplate setting but can't seem to get it to work.
FYI: This is a new project with a DGV dragged onto the form. All changes have been made programatically.
Updating Database Via Gridview Manually ASP.NET (VB)?
May 14, 2011Protected Sub GridView1_RowCommand _
(sender As Object, e As GridViewCommandEventArgs) _
Handles GridView1.RowCommand
If e.CommandName.CompareTo("command") = 0 Then
Dim itemID As Integer = Convert.ToInt32( _
GridView1.DataKeys(Convert.ToInt32(e.CommandArgument)).Value)
[Code]...
Basically, it doesn't work and I don't get it. I've been trying to figure this out for a few days now and I can't see what I've done wrong. As you can see I'm trying to manually update a field in my database with the value of (originalvalue)+1 when the user clicks the buttonfield of the corresponding row.
I guess what I'm asking is if anyone can point out any mistakes, please do, or if there's a better way to do this (without having to go through all the DAL/BLL BS)
[2008] DataGridView Not Updating?
Mar 9, 2009I'm populating a DGV from a DataSet... all done by code. I have the properties set to allow editing, etc. However, when I make changes to a record, they're not updating back to the Database. I suppose my assumption that by setting the properties to allow editing would automatically write the changes back to the database were wrong. Do I have to write update, delete, etc. commands?
View 3 RepliesVb 2008 - Updating Datagridview From Another Form
Feb 21, 2010I have a datagridview where i add rows using array like this:
Dim srow() As String = {getIDprodus(cmbprodus.Text), cmbprodus.Text, getprodusforma(cmbprodus.Text), txtcantitate.Text}
griddetalii.Rows.Add(srow)
Next, i need to let user to modify the added row. So when user selects a row and press EDIT, a new form is popped out using this code:
Dim i = griddetalii.CurrentRow.Index
frmdetaliiiesire.cmbprodus.Text = griddetalii.Item(0, i).Value
frmdetaliiiesire.txtcantitate.Text = griddetalii.Item(1, i).Value
[Code]....
In textbox1 i have put the index of the current row selected in grid The problem is when i push OK, the applications crashes and i receive an error: INDEX WAS OUT OF RANGE
If the users changes the values from the same form, it's works. But changing them from another form crashes the applications
VS 2008 Updating A Datagridview / Datasource
Apr 19, 2010I'm learning some more VB in my spare time, and I'm making a simple customer database that uses SQLCE. I've got the datasource set up and all that, but for some reason when I hit accept on the form, nothing happens?
[Code]...
VS 2008 - Updating - Datagridview With Data From A Datatable
Nov 17, 2009I have a little big problem in one application.
I have a datagridview with data from a datatable, this datatable have these fields (id,num1,num2, date,user,ref,qt,cost,center), some of them are hided in the dgv (id,num1,num2,date,user). The user can edit,delete and add new rows to the dgv.
I have a save button that performs this actions:
First check if there are new rows, and if yes it fill the hidden fields. Then validate the inserted values by the user with a couple of ifs. In the end, i call the bindingsource EndEdit, and call the adapter Update command against the datatable...
This sometimes works others not really, i don't understand why.
The error it's: "Concurrency violation: the DeleteCommand affected 0 of the expected 1 records"
I think sometimes when Updating it occurs to.
VS 2008 - Updating Access Database From DataGridView
Mar 24, 2010I have a datagrid view that displays information from a table. Changes I make to the data grid view are not saved. I have a button called btnsave but I have no idea what to put in the click event to save changes to the DB.
vb
Dim ConnStr As String = String.Format("Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0}", DataDir)
Dim conn As New OleDb.OleDbConnection(ConnStr)
Dim sql As New OleDb.OleDbCommand("Select * FROM USERS")
Dim dt As New DataTable
[Code] .....
VS 2008 Occasional Error When Updating DataGridView?
May 30, 2011I have a datagridview bound to a datatable. I update the datatable quickly and constantly (each row updated multiple times per second).
column value of particular row is updated manually by setting properties in the contained items..
DataGridView1.Rows(index).Cells("col1").Value = message
Error : Index was outside the bounds of the array.
Manually Populating A Datagridview?
Jun 10, 2009Historically I used Tek-Tips for stuff like this but I can no longer access my account there and they do not respond to form based mail. Maybe they got tired of the questions too :-)
I am not a student. I manage a 'large' network. Every now and then I need to roll up something for a specific task. Most of the stuff I write only sees my desktop so neatness and originality are not an issue.My current 'project' is throttling back a few of my users disk storage. I am not allowed to implement Quota's (Server 2003 infrastructure) so I thought the next best thing would be a duplicate file report. I purchased Folder Sized 4 which is a beautiful product (I have used it since it's humble beginnings as Bullet Proof Folders). The end users claim that the filename and date checks are not enough to prove a duplicate. Enter my idea.
I have cobbled together a MD5 hash generator from a function found out on the web. Now I want to send the results to a datagridview instead of my current disk files.I has thought that I could access the rows & columns like dgv.row(x).column(x) = "strFile", dgv.row(x).column(y) = "strMD5"Nope, hunting through the available properties did not point me to any likely candidates.
Again, if this is not the place for questions of this nature please let me know. I am not a programmer, nor am I in training to be one. I just toss little things like this together when needed. Importing a CSV file into Excell is working, but it seems rather lame to be taking so many steps.
DataGridView : Adding Rows Manually?
Sep 17, 2007I'm adding rows to a DataGridView via the following function, passing in one or more DataTables.The DataGrid is not aware what column(s) are coming back, but appears to build the column names okay.It's when it adds the individual cells (highlighted) that I get the following message:
ArgumentOutOfRangeException was unhandledSpecified argument was out of the range of valid values.Parameter name: rowIndex
DataGridView Adding Rows Manually?
Sep 11, 2011I'm adding rows to a DataGridView via the following function, passing in one or more DataTables.The DataGrid is not aware what column(s) are coming back, but appears to build the column names okay.
View 2 RepliesDatagridview With Manually Added Comboboxcolumn?
Jan 14, 2011i am using a Datagridview on my form. It get's it's datasource from a dataset: grd.datasource=set_temp After that I add ComboboxColumns manually. At the end I loop columns and set values into that cells from the comboboxcolumns. Works perfect so far. Now I click on a header and the sorting is changed, and then the cells from the comboboxcolumns all lose their values, they are all empty.
Why and what do I do to avoid that? Or must i refill those manual Values after sorting?
VS 2010 Sum Of Manually Selected Rows Of Datagridview?
Oct 1, 2011I have a datagridview on my desktop application, what I need is to show in a a textbox the sum of collums values, of rows selected manually. Is this possible?
View 4 RepliesDatagridview - Formatting Don't Applies When User Manually Enter A Value
Nov 19, 2010The situation: I have a datagridview with one column (col1). In the datagrid definition (design view), i have created this row, and set the formatting to C2 (or C0, or C - I tried them all). then, I load my datagrid view pro programmatically :
dbl_myValue as double
dbl_myValue = 6.99
datagridview1.item(0,0) =
dbl_myValue
The datagridView shows the data correctly : 6.99$. When I "spy" on the datagridview.item(0,0), the "Value" property is a Double.
the problem: It don't work if the user manually enter a value : click in the cell, enter a numeric value (let's say 100, without decimal to avoid complexity) and then LEAVE the cell (so no more in EDIT mode). The formating just don't applies. When I "spy" on the datagridview.item(0,0), the "value" property is a STRING. So I guess this is the problem, but how can i do?
VS 2008 : Updating A Data Base File Via A DataGridView Control When Called From Another Form?
Jul 24, 2011I am sorry to keep bothering you about this damn DataGridView control ... As you might have noticed I am having a hard time with the DataGridView control ... My latest problem has to do with updating the data base file (Access) through a DataGridView control .
Up to now I have managed to successfully edit an entry in the DataGridView control and moreover to successfully update the data base file itself .
The above form and its code work fine . The problem starts when I am trying to run the code of the Update button from another form .
You see , I have another form , through which I change the contents of some of the cells in the DataGridView control (back in Form1) . What I want next is to simply update the data base file itself , just like I was doing with the button in the first form , after I manually changed the cell in the DataGridView control .Thus , on the second form I have a button with this code :
Form1.Button1_Click(Nothing, Nothing) (of course the Click event is declared public)I have also tried :
Form1.Button1.PerformClick()
but still nothing ...Although Form2 successfully changes the cells back in Form1 , the data base file itself does not get updated ...If I manually press the Update button in Form1 I once again successfully update the data base file , but I want to do the whole thing by calling the Update button from Form2 .
Manually Save Data From My DataGridView To My SQL Server Database Table?
Sep 13, 2009Is it possible to manually save data from my dataGridView to my SQL server database table?
if it is possible can some please tell me how to do it because i don't like using the data sets and reader VB has because it doesn't give me full control over the procedure.
please see the code below it all works fine its just the last two line im struggling with, which is where i am trying to save the data from the two columns in my DataGridView [code]...
Displaying And Updating Data In DataGridView With Parent Child Relation Using N-tier Architecture (2008)
Jun 16, 2009I have recently built an N-Tier app using VB.Net 2008. The application is based on Beth Massi's tutorial at [URL] I am trying to incorporate a datagrridview control on a Parent form - one parent (father and mother) to many children. For example,
[Code]...
VS 2008 Connect Manually .sdf Database?
Jul 7, 2009I have created a local database (.sdf) and added a few records. What I really would like to do is connect to the database manually and load the records in a listview. Anyone with some tutorials?
View 5 Replies2008: Read A Manually Entered Value In A Numericupdown?
Jan 22, 2012An user is allowed to enter as well a value in the numericupdown box manually.. How to capture what he has entered?So far I have:
Private Sub NumericUpDown1_ValueChanged(sender As System.Object, e As System.EventArgs) Handles NumAmount.ValueChanged
btnAdd_Click.ForeColor = Color.DimGray
If NumAmount.Value > 0 Then
[code]....
The above works also if I add a value manually and press enter... But according to the exercise it should directly notice a manually entered value without pressing enter. How to do that?
Create Database Table Manually In Vb 2008?
Sep 24, 2010I want to do a task with a function controlling database with vb scripting. My form will include textbox, button and datagridview to view the database table manually without add from the microsoft access or other..how i want to make the table appear when i put a number into the textbox that refer to the number of row and column and then click the button to create the database table? Besides, how to rename it using textbox?
View 3 RepliesVS 2008 Including .NET Framework Dependencies Manually?
Dec 30, 2009I need to include my application in a custom Preinstallation Environment I am creating. The problem is that in order to include the framework within my PE would require a ton of extra work plus increase the size by a huge amount.I know that you can use an application like XenoCode to include the framework dependencies, but the cost of their software is pretty high.
View 7 RepliesVS 2008 Manually Setup 8 Numbers In Dd/mm/yyyy Date Format
Nov 1, 2009I have a question regarding unusual date format. I have validation set to where users must input 8 digits for the date that I intend on formating dd/mm/yyyy. Is there a date function in .NET that I can use or am I going to have to manually set up my own function to output those numbers in that format?
View 2 RepliesDataGridView Not Updating SQL
Jan 31, 2011I have a data grid view bound to a sql server table. What I am trying to do is have changes made in the dgv update in the sql table. I tried to use the Update method of the table adapter but get the following error.[code]....
View 4 RepliesDataGridView Not Updating?
Jul 26, 2011I have a datagridview with a datatable as datasource. If I add a row to the datatable, then the datagridview is not showing the contents.
grdChannel1.DataSource = CreateTable(colChannel)
Private Function CreateTable(ByVal colChannel As MyCollection(Of Channel)) As DataTable
'Create table and add collection into
[code]....
I have 2 row counts if I check the the row counts of the datagridview in the debugging mode.
IDE :: Possible To Updating Datagridview?
Jul 18, 2009I have a datagridview which i filled with this code:
Dim daProd As New SqlDataAdapter
m dsProd As New DataSet
cmd = New SqlCommand
[code].....
Adding And Updating From A DataGridView?
Apr 24, 2012I am trying to add and update data in a db from a DataGridView. I have a save button that runs this code. The code works fine. It figures out which rows are new and add it into the DB and which rows are updated and updates them in the DB. BUT if you press the button again it will add the new row in again. it does not mark the new row as one that needs updating when the button is pressed again
Dim recall As New stLib.clsRecall
Dim rulesRow As DataGridViewRow
For Each rulesRow In DgRules.Rows
[Code].....
Datagridview Changes Not Updating Database?
Mar 6, 2010teaching myself (an oldfashioned VBA programmer) VB2010 by converting an existing Access 2003 application to VB2010. I can read my data from an Access database into a datagridview:
'Biog datagridview
cnGrid.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:UsersPeterDocumentsDatabasesTestDatabase.mdb;User Id=admin;Password=;"
[Code].....
Datagridview Not Updating First Line?
Jun 5, 2011my code to update my data from a datagridview wich is bound to a datatable.
all works fine until the update proccess is started. The programs updates all my rows (x amount) on the datagridview but when it is saved the first rows data is reverted to what it was before update proccess was started..
EX.
My rows
ID Reg Brand
0 123 456
[Code]....
The first row did not save the new data passed to the datagrid but all the other rows did save the data correctly...
Error Updating From DataGridView?
Apr 19, 2010I'm getting the following error trying to update a SQL 2000 table from a DataGridView:
"Dynamic SQL generation for the UpdateCommand is not supported against a SelectCommand that does not return any key column information"
The pkClaim in the select is the key column. I don't know what I'm doing wrong here.[code]......