I am trying to update and delete data using a datagridview . When i run the below mention code i can delete from the table when when i edit its not updating my data in my database. when i run the below mention code its not giving any error as well
Public Sub CustomerUpdateBatch(ByVal dt As DataTable)
Dim connection As SqlConnection = New SqlConnection(Invoice.GetConnect())
connection.Open()
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I have been on a database project for a while now. I wanted to be able to make changes to my database using the update command of a Datagridview control.However, I have been faced with a series of unsuccessful outcomes.I want to do this how do I go about it?
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Objective to clear the datagrid view after updating. This should happen when the user clicks the OK button when the update is confirmed. Below is what i have.I currently have
Private Sub SaveToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SaveToolStripMenuItem.Click
'This updates datsource
Try
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If using a datagridview to update a database and the datagridview is bound to a bindingsource which has its datasource as the table to be updated: where dshould you place the tableadapter.update(mydatarow)
View 5 RepliesI am beginning to work with .NET technology after several years of VB6 and C++ and I want to learn as fast as possible.
My problem is with a DGV. It shows the prices of several store items, and I intend to let the user modify those prices by entering a % in a textbox (radio button states if that % is positive or negative) or by editing cell by cell manually.
As editing prices is kind of sensitive, what I do is loop through the DGV, add or substract the % engtered in the corresponding column and ask for a confirmation after whole DGV loop is done. If user agrees, DB is updated with new values. No problem here.
If user denies (in case he/she made a mistake), I restore grid's DataSource to a copy I made before calculating new percentages and this automatically refreshes my grid to its original state.
The issue is that if a user denies the operation for a 2nd time, this 2nd execution of the code fails at showing the original values, disabling the pseudo-rollback function.
Here is the code:
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If MessageBox.Show(mensaje, "Actualizo", MessageBoxButtons.YesNo, MessageBoxIcon.Warning) = DialogResult.Yes Then
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remember this works OK if user denis once. What am I missing regarding DataSources or its Tables? Is there anything like .Redraw?
Btw, I tried update, refresh and I also used a sleep function (this helped me a few times back in VB6...).
Has anyone ever experienced a problem whereby a value in the first row of a datagridview isnt being saved to the dataset after the change. I have a program where the user enters for instance "3#3" this means that record number 3 should be updated so that the statusID column is 3.When i use this code all of the rows are updating except for the first row and if i want to change this then i have to click on the datagridview combobox and change it but this cannot be used in the screen on the final design so i have to extract its contents to a textbox
View 1 RepliesI have a datagridview with a dataTable as the dataSource. The user can add new rows to the datagridview, but I don't display the primary key column (for obvious reasons) and set it to .visible = false. When I need to update the information in the datagridview to the database, I use the sqlClient.SqlCommandBuilder to then update the underlying datasource (the dataTable mentioned above).
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how to update a sql table from a datagridview. I only want to update the changed rows or even better yet, the changed cells. I am setting the edited cells to a different color.The code I read the data into the datagridview is:
Dim MyConnection As SqlConnection
Dim MyCommand As New SqlCommand
MyConnection = New SqlConnection("server=servername;Persist Security Info=False;Integrated Security=true;database=IT_Inventory")
MyCommand.Connection = MyConnection
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I change the color of the changed cell using a DataGridView1.CellValueChanged event.I do have column 0 as the primary key and I know I will need to use that to perform the update, but I have no idea how to do the update.
I have search online but find no tutorial/sample code in DataGridView which show how to insert, update delete.
View 3 Repliesbulk update in datagridview
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I have a datagridview bound to a table adapter. It displays data just fine. Part of this data is a comments field. When a user wishes to edit this I open a seperate form with the data in a a text box. After the user edits this text, how do I update the database / datagridview?
I can update the datagridview cell's value but that doesn't propagate to the database until the focus is removed from the row. I tried BeginEdit and then EndEdit (which should commit) but apparently it needs to move to another row!
I need some help keeping a DataGridView at the current row while being updated. I have about 140 rows of data that is being update with engineering data every 100 msec.
If the user is looking at a row 80, the slider is in the middle, when my LoadDt() runs to update with the latest data, the grid jumps back to row 1. I tried getting the first cell displayed and setting that back when done but this is not working.[code]...
I've created my dataset and tableadapters using Stored Procedures from a SQL database.When coding the application, I have a variety datagridviews that populate when the user opens a particular record (most are sub-sets of data).My problem arises during the save routine. Because I am using SPs, my usual update line is something like this:[code]
View 10 RepliesI have an application doing the following:
- Treeview with customers
- on clicking a treeview, for every project of this customer, a new MDIchild opens, where the products of this project are displayed
- the MDIchild is basically a DataGridView, which is connected to the products-table via a DataView
my Problem comes after changing a value in the products DataGridView:
- if i do not change the row, the changes will not go back to the database after an update
- if i do change the row after entering a new value, everything works fine
The strange thing is, that in both cases, the value in the DataTable is changed, the DataSet is "hasChanges=True" and the DataRow's state is "Modified".
I am using Visual Studio 2008, Vb .Net 3.5 and MS Access 2003.I have a datagridview (DGV) control bound to this MS Access DB. One of the queries is bound to this grid. Everything works fine, the data is displayed correctly. Here's the problem The SELECT statement of query has a BOOLEAN column which is shown as a check box on the grid (this is exactly what I wanted to be shown), when user clicks one of the check boxes all the records are updated. For example, if 30 rows are displayed and user changes stuats column from FALSE to TRUE for only 2 records all records in the table are set to TRUE.I have set the UPDATE command for this query's table adapter using the DataSet designer as "UPDATE <table> SET Status=?"
Can you please help me resolve this. All that I want is only those rows should be updated which are changed on the grid. Below is my code
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I'm creating a really simple app that connects to a SQL Server 2005 data sourceThere is a DataGridView component that binds to a single table. The data pulls up just fine, and I am able to add and edit records in the grid, however, it does not actually update the tables.
View 4 Repliesiam new to windows application.iam working with datagridview in vb.net .how to update the selected row in datagridview.any one help me with this.
View 1 RepliesThis is the problem I'm having, I have a grid that I need to update after the user enters some infoI've managed to get the grid to refresh adding the "new data" to the end of the list (not what I need)oad just the new data.
The steps I'm taking are as follows:
I'm clearing the DataSet using ds.clear()
rerunning my Queries
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I need to upon edit of datagridview save to sql table by button click or by cell value changed doesnt matter to me.
View 1 RepliesI simply cannot understand or see when a DGV's DataSource (a DataTable in my case) get's updated when a new row has been added to the DGV by the user. I have looked at row counts in the DataTable at every possible event and cannot "get" the correct number of rows (which I ultimately need to "get" the GetChanges(DataRowState.Added) of the DataTable.So, here's what I've done.1. The DGV is populated on the FormLoad event. It includes a ComboBoxColumn which has it's own datasource. All fine.Now, let's say initially there is 1 single row in the DGV. There is also and "empty" row at the bottom of the DGV, all cell values are empty.if the user Clicks the ComboBoxCol and chooses an item, then this actually creates a NEW friggin' row, RIGHT?!No. Not exactly. At least NOT in the DataTable (The DGV's datasource).I attempted to "check". Looked at the editingComboBox_SelectionChangeCommitted event:
Private Sub editingComboBox_SelectionChangeCommitted(ByVal sender As Object, ByVal e As System.EventArgs) _
Handles editingComboBox.SelectionChangeCommitted
Dim rct As Integer = ImprovementsEntity.improvementTable.Rows.Count
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i want to update data in database using datagridview actually i am displaying the data in datagridview and after that i want to update some rows data directly modifying the displayed data into the datagridview
how can be done like this
Using VB.NET and SQL Server 2005//In DataGridView n number of rows was displaying. Suppose I edit some value in the datagridview cell then I click save means it should update in the table also. Suppose I click add button means it should add a new row in datagridview.
View 1 RepliesFollowing is the code for updating rows of DataGridView in VB.Net.
Private Sub Update_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Update.Click
Dim con As New SqlConnection
Dim com As New SqlCommand
Dim ds As New DataSet
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When I click to Submit button, its doesn't update the changed rows.
In the database i managed to add pictures through the datagridview.Here's how i did it:
Dim fs As FileStream = New FileStream(mImageFilePath.ToString(), FileMode.Open)
Dim img As Byte() = New Byte(fs.Length) {}
Dim fs1 As FileStream = New FileStream(mImageFilePath1.ToString(), FileMode.Open)
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how can i update the databse? to update a field by adding a photo-but using the sql update command?
I need to run a query when I add/Change a value in my first column in a datagridview. When I add a value (a identifier from a table) in my first column, then I need the query to retrive the rest of the values in the table recordset. When I try to run a query, all i get is a query that updates my whole datagridview, and not only one row, with this code in the CellValueChanged module of the datagridview:
Me.myTableTableAdapter.FillBymyQuery(Me.myDatabaseDataSet.myTable, CType(DataGridView1.CurrentRow.Cells(0).Value, Integer))
Is there anyone who knows what I have to do, so I can add several rows to my datagridview, and let a query retrive my recordset based on my value in the first datagridview column?
I am using the below mention code to update and delete data from datagridview. but i am unable to solve this issue. Delete is working but not update.
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I'm trying to update the datagridview after i add new data into database from other form.[code]...
View 15 RepliesI am using vs2005 with access db. I am retrieving a tables data thru datagridview using an access query. The table i am calling is contains "ID" of something and I convert it thru the query and show it as names for the sake of my users.
My problem is how to store again the related "ID" s after they alter the datagridview cells? (i.e:the retrieved table contains only id's of customers and i showned the users as names, after they are editing how can i convert the user name as "ID" because the field is Long Integer foreign key field) Or otherwise how can i show the datagridview partuclar cell value as combobox style?
Imports System.Data.OleDb
Public Class frmdgEdit
Private Sub txtSearch_TextChanged(ByVal sender As System.Object, ByVal e As
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I want to save changes made in the Datagridview back to the database. I came accross Martin's solution HEREbut get an error: NUllReferenceExpection was unhandled. Object Reference not set to an instance of an object. Here's my code:
Dim con As New SqlConnection("Data Source=.SQLExpress;Initial Catalog=MyDb;Integrated Security=True")
Dim cmd As SqlCommand
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Here is my code, but its the other way around, it commits changes to the datagridview when the database is updated.
Imports System
Imports System.Data
Imports System.Data.OleDb [code]............
