Sql Server - Reload The DataGridView When Changes Occur To Its Dataset
Jun 1, 2012
I have a DataGridView control in my windows form application. What i want to do is this: I want to reload the view so that it shows the correct data when a change occur to the database table that it is bound. In other words, when i delete a record, using an sql query not the DataGridView1.Rows.Remove(DataGridView1.CurrentRow) property, i want the changes to occur to the datagridview also. For example: I have a customers table that is bound to the datagridview. When i delete a record, lets say the one with ID=5, i want the row to be removed from the gridview in run-time. Is this possible?
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Jan 28, 2010
I have been allover the web and can't find a solution that works.I am creating a signout system using An access DB I call student info using their ID# using FillBy to fill a form I call Equipment Info using a Barcode # Using FillBy1 and fill the rest of the form I then use a OleDb.OleDbConnection To add a row to the DB this adds the row to My Access table and works fine.Now the problem when I go to sign the equipment back in the equipment can't be found ( I am loading the record using the barcode#and Fillby for that tableAdapter But if I stop debugging and start again I can find it.
So I am assuming that I am writing data directly to access but calling data from the dataset which I can only get to update when I restart the program.The question is how can I get the dataset and the database to both be updated with the same data at the same time without stopping and restarting my project?
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Apr 3, 2010
I am using Vb 2008 Express Edition. I have only 1 form with 10+ arrays. My app runs a few calculations and finally plots 2 graphs. The first time I run my program, everything works fine. But when I run my app with a new set of data it gives me the wrong results. Is there a way I can force my form to reload itself and act as if its running for the first time? I know I can do an Application.restart. But I don't want to restart my app every time.
Me.Refresh() doesn't work, as my form still seems to remember my old data set (array)
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Nov 12, 2009
After adding a row into the DB i am using the following to show me the DGV containing recently added data but it is not showing up.[code]
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Feb 16, 2012
I have a windows form with a DataGridView control.I bound it into an attached DB file (.mdf).I perform insertion by generating a dynamic Insert statement. I then pump this sql statement into a SqlCommand object and perform ExecuteNonQuery() method. All of these is performed by handling a Button click event. The button and the gridview is located on the same form.
Public Sub InsertRow(ByVal param1 As String, ByVal param2 As String, ByVal param3 As String)
Dim strConn As String = (the connection string)
Dim sqlConn As New SqlConnection(strConn)
[code]....
After the code execution, the DataGridView is not updating (remains intact). I have to exit the form and reload it to have the updated gridview.For certain reasons, I can't use DataTable object.But I would like to have this gridview updated everytime I run the insertion.
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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 9, 2009
I have a Class that is creating a large dataset (over 32,000 records) on the fly. I want to take the dataset and import it directly into SQL Server 2005 but I have not been able to find anything in ADO that allows me to do that all in one chunk. Doing a search I found some people in a similar situation that have exported the dataset to an XML file and then imported into SQL Server, which seems like a long way to go just to get something done that I would think would be part of ADO.Net.
However, for lack of a better option, I went a head and created the XML file but now I am having problems getting it to import into SQL Server so before I lose another day of productivity I am goin to ask a question.Is there a way to insert a dataset directly into SQL Server without going to a file first (even if I have to do it one row at a time)?
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May 2, 2012
is there any possiblities like this select two conditions in one dataview like
Childds.Tables("ColumnList").DefaultView.RowFilter = customername='hello'
dv = Childds.Tables("ColumnList").DefaultView()
it has given correct answer but
Childds.Tables("ColumnList").DefaultView.RowFilter = customername='hello' or customername='hai'
dv = Childds.Tables("ColumnList").DefaultView()
In this case it takes only first one and ignore the second or condition
how to write the rowfilter to select when the customers are multiple
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Mar 15, 2010
So I created a table and one of the columns is is called currencydate, and has a datetime data type. Within my vb scripts, i've taken a filename and extracted the date components from it. an example filename is WER22402.10. The part in bold is the date meaning 24th February 2010.
I use the following function to extract the date values and convert it to a date type.
Private Function ConvertStringToDate(ByRef FileName) As Date
Dim S As String = FileName
S = S.Substring(4, 7)
[Code].....
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Oct 21, 2009
I am developing a software that will be installed on 3 servers using sql server 2005 + replication.
In my development I want to use sql server with dataset.
When I finish the project at my development machine, I want the ability to install it at these 3 servers.
What is the best way to configure the connection?
Can I change the connection string created by the wizard during run time?
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Mar 14, 2011
I have a VS2010 VB application using a SQL Server 2008 R2 database. I display a record in a form and allow the user to update the record and save the changes. However, the changes don't make it to the table. Here's the sample code for the Save button click[code]...
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Sep 13, 2010
Anyway, I wrote a view with a union query in SQL Server that grabs data from a linked SQL server.
Anytime I try to add this object as a dataset in VB.NET it completely bombs out on me with this ugly error message...
ERROR [42000] [Microsoft] [ODBC SQL Server Driver] [SQL Server] The operation could not be performed because the OLE DB Provider 'SQLOLEDB' was unable to begin a distributed transaction. ERROR [01000] [Microsoft] [ODBC SQL Server Driver] [SQL Server] [OLE/DB provider returned message : new transaction cannot enlist in the specified transaction coordinator] ERROR [01000] [Microsoft] [ODBC SQL Server Driver] [SQL Server] OLE DB Error Trace [OLE/DB Provider 'SQLOLEDB' lTransactionJoin::JoinTransaction returned 0x8004d00a]
I'm completely stumped as to why I can't create a dataset from a view that references a linked SQL server. It's not this specific view either, all views that reference this linked server bomb out.
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Jun 10, 2011
I have a property active to indicate status of an employee. Along with all the details, i extract the details from an employee table into a dataset, but however i am not able to get the value present in active as i get an invalid cast exception.
This is the property declaration.
CODE:
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May 9, 2011
Reading bit type sql server db column from dataset
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Apr 16, 2012
My Scenario is that i have fetch data from one SQL Server table into vb.net DataTable.Now if any record is changed or New Record is saved into SQL Server Table i want to fetch or update only that record into my data table. is it possible.
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Jul 12, 2011
I fill table data into dataset using Adapter. How to update dataset changes back to Microsoft SQL Server Table. I refer to the following URL, the solution is working fine, it makes use of the adapter.UPDATE to get table updated with changes made to dataset. [URL]
Sample Code:
cmdBuilder = New SqlCommandBuilder(adapter)
changes = ds.GetChanges()
If changes IsNot Nothing Then
adapter.Update(changes)
End If
I would like to know is there any other alternatives besides the one I have mentioned above. Can the alternative supports scenarios such as update existing record (probably based on primary key or defined conditions), insert new record as well delete existing record.
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Jun 23, 2011
I fill table data into dataset using Adapter.How to update dataset changes back to Microsoft SQL Server Table.I refer to the following URL, the solution is working fine, it makes use of the adapter.UPDATE to get table updated with changes made to dataset.
Sample Code:
cmdBuilder = New SqlCommandBuilder(adapter)
changes = ds.GetChanges()
If changes IsNot Nothing Then
[code]....
I would like to know is there any other alternatives besides the one i have metioned above.Can the alternative supports scenarios such as update existing record (probably based on primary key or defined conditions), insert new record as well delete existing record.
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Dec 16, 2010
I have an existing project written in VB.NET using Visual Studio 2005 communicating to a SQL Server 2005 database. The database was migrated to a sql server 2008 r2 on a different physical server so the dataset's server name needs to be updated. I do not have access to the database anymore. is there a way to just update the server name without invoking the dataset wizard and requiring a connection to the database?
UPDATE: I tried to created a new project with just a button with the command calling the following subroutine to test the connection from a windows app to the sql server database. here is the sub:
Public Conn as New ADODB.Connection
Public Sub PubSubConnectToDB()
Conn.Open("Server=w2k54
[Code]....
I am able to created a system dsn on the same server with the same credentials and test the connection successfully.
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Jun 22, 2011
i want to add the last row of the dataset but it is only displaying System.Data.DataRow in one of the colums
con.Open()
cmd = New SqlClient.SqlCommand("select product,Quantity,MRP,Sale_Rate,Disc_Amt,Amt from sale_table ", con)
[code].....
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Jan 27, 2009
I have a datagridview that is linked to a bindingsource....which is linked to a table in a dataset. (and i have tried it with the datagridview linked to the dataset and table directly).
When i make edis to the datagridview, and check the DataSet.Haschanges, it returns false.[code]...
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Apr 28, 2011
is it possible to add two defferent datatable (single dataset) into datagridview? what I mean?I have a datagridview and one dataset with two datatable. here on the datagridview, I have 3 columns on datagrid as (code, name and unit (combobox)) first two from table 1 and 3rd from table2. there is relation between table1 and 2 (code). so, in combo, I have to fill the unit depents the column1 (code).
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Mar 24, 2012
We are writing a program to work alongside our SQL/VB.NET-based POS system.We can both co-exist in the same SQL instance, but we have to keep the two databases separate. Any extra columns that don't belong in their tables causes their DB maintenance to fail, so I have a second database with all of their table names, with column 1 being the GUID from their table, and the remaining columns are the ones that I needed to add, and I'm going insane having to split between the two. I've looked into a lot of different ways to handle my issue below, and the only thing that I can seem to get working are datasets created at runtime through code. I can get SELECTs into my program just fine, but my problems are when I want to run loops on the datasets, and then insert, update, or delete back to SQL.
My first problem is that every time I run the select command to fill the dataset, it duplicates the entries in the dataset. The only way I know how to stop it is to clear the dataset before each poll, but I don't want to erase what's in the dataset. I want to insert the records that don't exist, and update the ones that have changed since the last poll. How can I say "only insert new records into the dataset that are not already in there"?
I have a Windows service set up with a timer that runs a "Check for New Tickets" function stored in the SQL Server every 5 seconds to check for new tickets. It returns 1 if there are New Tickets, or 0 for No New Tickets. When SQL returns 1 to the service, then the service will temporarily stop the timer to process stored procedure 2, which gets all the new ticket GUIDs and inserts them into a dataset to process. The part that I'm having trouble with is using if-then logic to run different procedures based on different variables returned from the database (i.e. what items are on the ticket, who created the ticket, if it's from workstation B, run this procedure, mark the ticket as synced, etc.) So my goal is to get data from the SQL server, run logic to update the dataset, and then update it back to the SQL server, or insert/delete/etc.). I know it's possible because this book I have steps you through it, but the book's examples don't fit what I'm trying to do.
For example, there is a bit column called 'TicketHasCarWash', 1 is yes, and 0 is no. If the ticket has a car wash, I need to determine what kind of car wash they have. There is a table called 'TicketItems' where the car wash type is stored. I need to say "For each ticketGUID in the dataset where "HasCarWash = 1", UPDATE LocalDataSet SET CarWashType = (SELECT CarWashType FROM SQL.dbo.TicketItems WHERE TicketGUID = @TheTicketGUIDOfTheCurrentRowInTheDataset) Next.
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May 18, 2009
I am trying to read JSON data from a server to a dataset object, any idea on how this can be done. I have tried using the DataContractJsonSerializer class but it only seems to work for objects.
JSON Data
{
"firstName": "John",
"lastName": "Smith",
[code]....
The code above works to an object, but I want to parse the JSON data to a dataset object.
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May 11, 2009
I want to use dataset for sql server for adding/modifying/deleting data from sql server.
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Mar 15, 2012
In my application, i have put a question on form closing if the user wants to save the changes?. But right now, i have just put it in default whether they make changes or not.I thought of prompting it on text change.. but the text automatically changes on load as it retrieves data from sql server.
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Mar 25, 2012
What is the code that I can use to describe what happens when there is not just one exception in a'Try...Catch..Finally...End Try' statement? For example: 'Catch' is used to describe what happens when a certain exception occurs, but what can I use to describe what happens when a certain exception does NOT occur?
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Jul 28, 2010
I have data that I'm taking from an Excel sheet with the ultimate goal of displaying in a DataGridView.
Currently I am just going over the UsedRange of excel data and plugging it into a datagridview. This works fine, but can get bogged down when there 100+ rows of data.
I have also toyed with going from excel into a dataset (using the same wasteful method), and as expected it takes about the same time to load the data. Maybe use the XML from the Excel file?
EDIT:
Some Additional Information:
This is a WinForms application and the user will be picking and loading the excel file at run-time.
EDIT
The Return of Some Additional Information:
The Excel file is located on the user's pc. The general assumption is that they will be loading different files each time they use the application. [not sure if this helps, but might be good to know :)]
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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 13, 2012
my question is, is there a way to filter records in the dataset and use that records to fill in the datagridview? for example, a datatable (with 3 columns: ID, StudentName, Gender) is filled with list of students. i have two datagrids in the form namely DatagridView1 and Datagridview2. DatagridView1 is where the the list of student where Gender is equal to M and DatagridView2 is where the the list of student where Gender is equal to F.in my current solution, i am using a loop.
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is there a way without using a loop?
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Apr 22, 2010
I have a data bound datagridview where I am allowed to add and delete rows.So a new row is the last row in the grid with the '*'. When a user starts to type in the new row, that row no longer is considered the new row. It is then inserted into a row above the new row (*). The user, however, can press 'Esc' key and this row gets deleted.If the user does not pressed 'Esc' but move the cursor along that row, this row will be permanently there. I have tested this scenario and check the underlying dataset and it registers no changes as in the myDataset.hasChanges=FALSE.If I call myDataAdapter.Update(myDataSet), nothing gets updated. How do I save this row to the database?
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