VS 2008 Datagridview - Loading Data From Sql Server Datatable - Modify Or Delete The Product List
Feb 3, 2012
I have a vb.net form to add, modify or delete the product list..i have a datagridview in which i m loading data from sql server datatable...now i have a text box which accepts code for the product..i want that when i press a key, all data starting with that key should be highlighted in datagridview.....
eg
i have product codes
A001
A002
A003
C001
D001,, etc..
Now i press A in text box...in datagridview all data with A should be highlighted
I have a DataGridView with one column, I set for that column DefaultcelStyle->Wrapmode=True Modify data a with a long string, I call also vb.net DataGridView1.AutoResizeRows() DataGridView1.Refresh() But the DataGridView doesn't refresh wrap,il looks like this : I change manually current selected row moving to another record and now the refresh is done :
I have an application that i use with click once to install on clients pc's. However, some(or Most) of them require me to modify the hosts file. What is the best way of doing this?
I have a Business Logic Layer that contains function that return datatables. I'm writing a function that will return just the records that begin with the string passed in. this is what I've come up with so far:
Public Function FetchBusinessAreas(ByVal area As String) As List(Of BusinessArea) Dim AreasList As New List(Of BusinessArea) Dim dt As DataTable
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 have a datagridview that's taking a while to load because my table contains almost 5000 records. How can I provide an easy way for clients to filter the grid based on a product name. I was thinking of having labels with each alphabet on my form and when they click a label it filters the bindingsource according to the chosen alphabet. this seems like an awkward solution though.
1. Can someone show me sample codes on how to do that ?
2. I encountered a problem with the INSERT sql statement. I keep receiving syntax error in insert statement exception. Is there anything wrong with the statement ?
I am trying to retrieve data row by row from my SQL Server and load them into my respective textboxes, I was doing the below code but of course it doesn't work as the For Each loop will load every single textboxes with each data retrieved,
I have a datagridview linked to a dataTable loaded from a sql server via an adapter.I wish to sort one of the column: Filenumber.The Columns is a string. For example:
M-099 M-756 M-777 M-1000
But when i sort the columns by using Me.DataGrid.Sort(DataGrid.Columns(9), System.ComponentModel.ListSortDirection.Ascending), it turns out to be:
M-099 M-1000 M-756 M-777
I would like to know how to sort it like:
M-099 M-756 M-777 M-1000
How should i go about it? I've thought of getting rid of the M- in front and putting it into another column, but it makes filtering nuisance.Also, is it true the a custom sort via an IComparer is only applicable to things without a binding source?
I am trying to retrieve data row by row from my SQL Server and load them into my respective textboxes, I was doing the below code but of course it doesn't work as the For Each loop will load every single textboxes with each data retrieved, ran out of ideas.
Private Sub retrieve_Data() Dim con As New SqlConnection Dim cmd As New SqlCommand
I have an application using Visual Basic 2010 Express. Basically I load an XML file into a datagrid and then wish to modify it. Now the following code works fine:
Private Sub Modify_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Modify.Click Dim da As New XmlDataDocument da.Load(Environment.GetFolderPath(Environment.SpecialFolder.Desktop) & "/events.xml") Dim path1 As String = "/calendar/event/title[text()='" & DataGridView1.CurrentRow.Cells(0).Value.ToString & "']" Dim path2 As String = "/calendar/event/text[text()='" & DataGridView1.CurrentRow.Cells(1).Value.ToString & "']" [Code] .....
Now the modify button does what it is intended to do as far as load the "title" and the "text" elements into the text boxes. However I want to load the other attributes into the text box. I.E. date, timeStart, timeFinish etc. Also, the just of this is to be able to modify an xml file without going into the xml file using a text editor.
I am trying to load CustomerName and PrintStreamACNO from tblCustomers to my dropdownlist. I am not getting the correct syntax on the binding and displaying.
Imports System Imports System.IO Imports System.Reflection Imports PSXSTL.Data Imports PSXSTL.Data.DataAccess
I'm populating a DataGridView from a file with the following
Dim fnum As Short = FreeFile() Dim inputLine As String Dim i As Short = 0 Dim strAuditDate As String Dim strAuditTime As String Dim msg As String
[Code]...
When I do this, the MessageBox.Show shows the contents of a row, which is tab delimited. How do I get the data that I read to display in columns of the Gridview?
I have a datagridview (Unbound), which calculate several numbers, and I use this following code to save 5 of the columns to a XML file. My problem is that I would like to load this file back to my datagridview, and onlu to the same columns, without changing the rest of the datagridview.
Code used to create XML file: Dim gridtable As DataTable = New DataTable("WaypointLeg") Dim gridtable_collumn1 As DataColumn = New DataColumn("column1") Dim gridtable_collumn11 As DataColumn = New DataColumn("column11") Dim gridtable_collumn18 As DataColumn = New DataColumn("column18") Dim gridtable_collumn19 As DataColumn = New DataColumn("column19") [Code] .....
How I can load my XML file, and only update certain columns in my datagridview and not add 5 more columns to my datagridview? Is there a way to load the XML data to my datagridview without binding the datagridview to the XML file?
I mean without the use of the: DataGridView1.DataSource = ds.Tables(0)
I have a problem loading data to a tree view control using SQL SERVER db as my backend...i just found out that sqlserver dont accept multiple SQLDATAREADER
The code below works in SQLCOMPACT EDITION..
CODE:
I have use this code in my applications using SQLCE as my backend, but when i transfered to sqlserver it doesnt work because of the datareader..
Output is like this Quote2011[January][February] 2010[January][February] something like that
If i put it in a single query(sqlYear & sqlMonth), the ouput will be like this Quote2011[february] 2011[january]
I have been having trouble finding a good way to do this. Basically what I need to do is take a query from a SQL Server Database and place it into a DataTable (or an array) for manipulation. I've got the connection and everything working, but none of the methods I've tried so far seem to work very well.I need it to compare data with an uploaded CSV file and post on a website.
I wrote a procedure that builds a DataTable in memory using data stored on our DB2 database. The function builds a Multi-Level Bill of Materials (BoM), meaning that the data cannot simply be queried. The function works great and returns a nicely arranged DataTable object. However, I then need to query the in-memory DataTable against other tables on our server. What would be the best way to approach this problem? Should I make a DataTableAdapter for the Server tables and then build a DataView? I don't have too much experience yet with Data objects. (By the way, I looked into LINQ to DB2 and even installed IBM's addin's, but our server doesn't seem to support it at this time.)
1) How can I load data from Text file to DatagridView. I want it because I'm making a listener. And when I load a data from text file, i want to edit rows. And this calling the second question. 2) How can I save data, Datagrid to Text file.
I found a code Dim obj_oledb_da As System.Data.Odbc.OdbcDataAdapter Public Function ConnectCSV1(ByVal filetable As String) As DataSet Dim dataSet As New DataSet [Code] ..... I can load data with this code but I can't save.
My Text File must be like this: #IP 127.0.0.1 localhost
I have a list box which displayed the var_field from the database. when the user select a data from the list box and press delete the data should be delted fromt he l;ist box and the row from the database. Im using the following code. but it shows some error called "Object reference not set to an instance of an object."
Private Sub Deletebutton_Fielddetails_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Deletebutton_Fielddetails.Click Dim form As New Fielddetails()
this function enables you to calculate a full arithmetic calculation , as 5*(3+2)+6 , but : it's limited with (+,-,*,/) signs . is there any way to add a support for the another signs (like : !,sin,cos,tan,root,^,log and another signs) to give the user the ability to calculate a full calculation including the other signs which cannot be calculated within the compute.datatable function ?
