Hello-

I am currently working on a piece of code (windows Forms in VB (VS 2010)) that is already in production and using bindingnavigator/tableadapter/bindingsource to cycle thru the data (they are using text boxes to display/edit the information) and this seems to work just fine.

Recently they wished to include an add item feature to it as well and while this seemed to be relatively forward I have run into an issue:  

Within the Save event  I used the following code

-----------------------------------------------------------------------------------------------------------

Private Sub SaveButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SaveButton.Click

    ' Save item

 Try 
     Me.Validate()

  recordBindingSource.EndEdit()
     recordTableAdapter.Update(WISPatruLI_DataDataSet.Record)

       MsgBox("Update successful!")

 Catch ex As Exception
  MsgBox(ex.message)
        End Try
   
End Sub

-----------------------------------------------------------------------------------------------------------

But this continues to throw errors (at recordBindingSource.EndEdit()) related to the guid being Null.  I have no control over the DB side of things, outside of just writing a SQL to insert the new record , is there way to overcome this using the above controls ?

Thank you in advance for any help.

Ken

Sorry if this does not make sense, but I am new to C# and WPF...

I have a case where I need to have a potentially different set of data for any giving cell of a grid...

In the example code I show below, I tried to create a DataTable with a column that is a typeof(ComboBox) and then create and add a ComboBox to the item.

Here is my code:

private void btnFill_Click(object sender, RoutedEventArgs e)
        {
            // Create a new data table
            DataTable dt = new DataTable();
            // Create and add the columns
            DataColumn c1 = new DataColumn("UserId", typeof(ComboBox));
            DataColumn c2 = new DataColumn("Age", typeof(Int32));
            DataColumn c3 = new DataColumn("BirthDay", typeof(DateTime));
            dt.Columns.Add(c1);
            dt.Columns.Add(c2);
            dt.Columns.Add(c3);

            ComboBox cbo1 = new ComboBox();
          
            cbo1.Items.Add("One");
            cbo1.Items.Add("Two");
            cbo1.Items.Add("Three");
            cbo1.SelectedIndex = 0;

            // Add your data - one row at a time
            DataRow newRow = dt.NewRow();
            newRow["UserId"] = cbo1;
            newRow["Age"] = 24;
            newRow["BirthDay"] = DateTime.Today.AddYears(-24);
            dt.Rows.Add(newRow);

            cbo1.Items.Clear();
            cbo1.Items.Add("Four");
            cbo1.Items.Add("Five");
            cbo1.Items.Add("Six");
            cbo1.SelectedIndex = 0;

            newRow = dt.NewRow();
            newRow["UserId"] = cbo1;
            newRow["Age"] = 74;
            newRow["BirthDay"] = DateTime.Today.AddYears(-74);
            dt.Rows.Add(newRow);

            // Turn off auto column generation
            grdData.AutoGenerateColumns = true;
            
            // Clear current columns
            grdData.Columns.Clear();

            // Bind the grid
            grdData.ItemsSource = dt.DefaultView;

        }

The program is executed without any errors, but I just get the object string in the cell I expected to see the combo box:

I have found many examples of people using DataGridComboBoxColumn() object for setting the entire column equal to a combo Box with specific set of inputs, but in my case, the inputs may vary. So I could not figure out how to work that object into my logic.

Thanks in advance for any help that can be provided!!

Regards,

Patrick

I am getting data from an Excel spreadsheet and attempting to add records to an access database.  I have been successful programmatically adding records to other tables in the database with the method below.  It doesn't work with this table.

        Dim sqlConnectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & data_path
        Dim sqlConnection As New OleDb.OleDbConnection(sqlConnectionString)
        sqlConnection.Open()
        ChecksTableAdapter.Connection = sqlConnection
        ChecksBindingSource.DataSource = ChecksTableAdapter.GetData
        ChecksBindingSource.AddNew()
        ChecksBindingSource.Current("check_number") = "FWD"
        xlCells = oXLSheet.Cells(first_row, DATE_COL + 1)
        cell_text = CStr(xlCells.Value)
        ChecksBindingSource.Current("check_date") = cell_text
        ChecksBindingSource.Current("payee") = ""
        ChecksBindingSource.Current("payment") = ""
        ChecksBindingSource.Current("deposit") = ""
        ChecksBindingSource.Current("balance") = initial_balance
        ChecksBindingSource.Current("comment") = ""
        ChecksBindingSource.Current("payment_value") = 0
        ChecksBindingSource.Current("deposit_value") = 0
        ChecksBindingSource.EndEdit()
        If Me.ChecksDataSet.HasChanges Then
            Try
                Me.Validate()
                Me.ChecksBindingSource.EndEdit()
                Me.ChecksTableAdapter.Update(Me.ChecksDataSet.checks)
                MsgBox("Update successful")
            Catch ex As Exception
                'FindErrors()
                MsgBox("Update failed")
            End Try
        End If

Me.ChecksDataSet.HasChanges never true

Where should I look now?  An UpdateCommand has been added to the checksTableAdapter by the wizard.

RONATMOODYLAKE

This Script:

CREATE VIEW [dbo].[FAHRAUFTRAGZIEL] 
(   ANFAHRSTELLEID,
   FAHRAUFTRAGID,
   FIRMENNR,
    SEQ,
   UUID,
   ADRESSENID, 
   ADRESSEN_NUMMER, 
   ANFAHRSTELLE_NUMMER, 
   ANFAHRSTELLE_NAME, 
   ANFAHRSTELLE_ANSCHRIFT,  
  FAHRAUFTRAG_NUMMER
)
AS   
 SELECT   
    FAHRAUFTRAGZIEL_T.ANFAHRSTELLEID,  
     FAHRAUFTRAGZIEL_T.FAHRAUFTRAGID,  
     FAHRAUFTRAGZIEL_T.FIRMENNR,   
    FAHRAUFTRAGZIEL_T.SEQ,  
     FAHRAUFTRAGZIEL_T.UUID,  
     ANFAHRSTELLE_T.ADRESSENID, 
      ADRESSEN_T.NUMMER AS ADRESSEN_NUMMER, 
      ANFAHRSTELLE_T.NUMMER AS ANFAHRSTELLE_NUMMER,   
    anfAnschrift.NAME AS ANFAHRSTELLE_NAME,  
     anfAnschrift.ANSCHRIFT AS ANFAHRSTELLE_ANSCHRIFT,  
     FAHRAUFTRAG_T.NUMMER AS FAHRAUFTRAG_NUMMER
   FROM 
      dbo.FAHRAUFTRAGZIEL_T  
      INNER JOIN dbo.ANFAHRSTELLE_T ON ANFAHRSTELLE_T.UUID = FAHRAUFTRAGZIEL_T.ANFAHRSTELLEID  
        INNER JOIN dbo.ANSCHRIFT_T  AS anfAnschrift ON anfAnschrift.UUID = ANFAHRSTELLE_T.ANSCHRIFTID      
    INNER JOIN dbo.ADRESSEN_T ON ADRESSEN_T.UUID = ANFAHRSTELLE_T.ADRESSENID 
         INNER JOIN dbo.FAHRAUFTRAG_T ON FAHRAUFTRAG_T.UUID = FAHRAUFTRAGZIEL_T.FAHRAUFTRAGID

Should look like this with Regex:

dbo.FAHRAUFTRAGSZIEL

maybe useless cause i know the View-Name

of SELECT-Block:

FAHRAUFTRAGZIEL_T.ANFAHRSTELLEID
FAHRAUFTRAGZIEL_T.FAHRAUFTRAGID
FAHRAUFTRAGZIEL_T.FIRMENNR
FAHRAUFTRAGZIEL_T.SEQ
FAHRAUFTRAGZIEL_T.UUID
ANFAHRSTELLE_T.ADRESSENID
ADRESSEN_T.NUMMER
ANFAHRSTELLE_T.NUMMER
anfAnschrift.NAME
anfAnschrift.ANSCHRIFT
FAHRAUFTRAG_T.NUMMER

of FROM-Block

dbo.FAHRAUFTRAGZIEL_T
dbo.ANFAHRSTELLE_TAN
FAHRSTELLE_T.UUID
FAHRAUFTRAGZIEL_T.ANFAHRSTELLEID
dbo.ANSCHRIFT_T
 anfAnschrift.UUID
ANFAHRSTELLE_T.ANSCHRIFTID
dbo.ADRESSEN_T
ADRESSEN_T.UUID
ANFAHRSTELLE_T.ADRESSENID
dbo.FAHRAUFTRAG_T
FAHRAUFTRAG_T.UUID
FAHRAUFTRAGZIEL_T.FAHRAUFTRAGID

That means the Regex hav to be Match : (Word).(Word)

AND A WORD CAN ONLY BE LETTERS AND UNDERSCORE !!!

So I did this:

 Regex regCol = new Regex(@"[A-Za-z_].*\.[A-Za-z_].*"); MatchCollection matchesCol = regCol.Matches(sqlScript);

But the result set was not the same i expected:

Per Examples some matches out of the generated regex matchcollection

{FAHRAUFTRAGZIEL_T.ANFAHRSTELLEID, }
{FAHRAUFTRAGZIEL_T.FAHRAUFTRAGID, }
{FAHRAUFTRAGZIEL_T.FIRMENNR, }
{FAHRAUFTRAGZIEL_T.SEQ, }
{FAHRAUFTRAGZIEL_T.UUID, }
{ANFAHRSTELLE_T.ADRESSENID, }
{ADRESSEN_T.NUMMER AS ADRESSEN_NUMMER, }
{ANFAHRSTELLE_T.NUMMER AS ANFAHRSTELLE_NUMMER, }
{INNER JOIN dbo.ANFAHRSTELLE_T ON ANFAHRSTELLE_T.UUID = FAHRAUFTRAGZIEL_T.ANFAHRSTELLEID }
{INNER JOIN dbo.ANSCHRIFT_T  AS anfAnschrift ON anfAnschrift.UUID = ANFAHRSTELLE_T.ANSCHRIFTID }
{INNER JOIN dbo.ADRESSEN_T ON ADRESSEN_T.UUID = ANFAHRSTELLE_T.ADRESSENID }

The Question is: why the fuck are there floating points and whitespaces

and I need some advice, help or something else :D Thanks in Advance

Hello. I have a problem. Obviously ;)
So, I have a method that update and refresh datatable in one form. If I "connect" this method to button in same form (form1) it works fine, but if I "connect" it to a button in another form (Form2) same process doesn't work. does anybody know why?

Here is some code:

Form1:

public void RefreshTabel()
        {
            gTableAdapter.Update(ds.Growns);
            this.gTableAdapter.Fill(this.ds.Growns);
        }

Form 2:

private void buttonSave_Click(object sender, EventArgs e)
        {
            Form1 form1 = new Form1();
            form1.RefreshTabel();
        }

Thanks for help.

Hello everyone, Yimi167 here with a new question.

I'm a bit rusty at vb studio and programming in general, however let me start to explain. I'm looking to make a login system in vb 2010 that would be able to do the following: Check database for the name and password verify it and then login to what ever.

I also need a registration form that asks for the following: username, password and email. Then verifies that the email and username are not taken then create that account. I want it added not only to the login database, but also in a .txt file. I also wanna know how to add info to this .txt file for invantory, bank and so on... and make it so that all the databases I need will read this .txt file upon login to load all this data.

And lastly I wanna it to read image files for tiles and sprites; how can I make this?

This is all the info I'll need to get started. Please be clear in your descriptions. I will love you all bunches when I get this figured out (expect more questions in the future). 

Good Day

I have an application written in C#, that connects to a Microsoft Access Database file.

Now, the enviroment is (Windows 7 - 64bit, with MS Office 32 Bit.

After some research, i came to a solution that advised installed - AccessDatabaseEngine.exe /Passive and then going to the registery and renaming the entry MSO.DLL

I did this and the app worked perfect!!,

then somehow randomly months later i started getting the following error, adn just cannot find a solution.

error below.

AMI.NET

Hi, can somebody help me about Save all records DATA Grid view by typing in it. I'm using vb 2010..

for example i have a grid and i type the records there after going to the next row it will be saved to the database.. I'm using MSSQL 2008 for the DB. I tried this one

Private Sub frmsetting_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Me.UtOTratesTableAdapter.Fill(Me._88PayrollDataSet.utOTrates)

    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Me.UtOTratesTableAdapter.Update(Me._88PayrollDataSet.utOTrates)
    End Sub

 but I received this error:Update requires a valid UpdateCommand when passed DataRow collection with modified rows.

I'm updating an older access application to a C# 3.5 winforms application.  I would like to mimic the way I can bind data to a record selector and when I cycle through the records the data within the textboxes and dropdownlists updates based on the record selected.  What is the best way to achieve this?  For now i'm going to use the old access back end database to bind to my form.  

Thank you

I was experiencing the same issue as stated below:

http://social.msdn.microsoft.com/forums/en-US/winformsapplications/thread/03b1b1e5-0714-49e1-a118-9349c50d0eff/

I also tried the solution given in that thread. It worked! However, the screen flickers when I click on the datagridview, because there is a brief moment where the scrollbar goes back and forth and this is causing a disturbance in the GUI.

Is there a better way to handle this issue? or can I improve my existing solution? 

Thanks!

I use MS-Access Database using C# for my Windows Forms Application

I have the Following two combo boxes 1 combo box with EEID-Unique ID and Employee name I have a 2nd Combo box with a list of employee statuses example: Current Employee, Other, Terminated. I want to update the status of the employee by the value selected in combobox2. I have the following in Code and I dont get any errors, it doesn't update the employees status?

I have tried both of the following an neither work

shawnrye

http://social.msdn.microsoft.com/Forums/windows/en-US/ff091d1a-c446-472f-b51e-37f2b9cd3b54/how-i-can-refresh-my-datagridview-from-another-form?referrer=http://social.msdn.microsoft.com/Forums/windows/en-US/ff091d1a-c446-472f-b51e-37f2b9cd3b54/how-i-can-refresh-my-datagridview-from-another-form?referrer=http://social.msdn.microsoft.com/Forums/windows/en-US/ff091d1a-c446-472f-b51e-37f2b9cd3b54/how-i-can-refresh-my-datagridview-from-another-form
In this link there is a code. It works fine when I use sql server. 
But I used MS- access database. Then it will not working.


public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        public static SqlConnection getc()
        {
            string sqlstr = "Data Source=.;Initial Catalog=pp1;Integrated Security=True";
            SqlConnection conn = new SqlConnection(sqlstr);
            return conn;
        }
        private DataTable GetData()
        {
            DataTable dt = new DataTable();
            using (SqlConnection conn = getc())
            {
                SqlCommand cmd = new SqlCommand("select * from dgv", conn);
                conn.Open();
                SqlDataAdapter ad = new SqlDataAdapter(cmd);
                DataSet ds = new DataSet();
                ad.Fill(ds);
                dt = ds.Tables[0];
                return dt;
            }

        }

        private void Form1_Load(object sender, EventArgs e)
        {
            dataGridView1.DataSource = GetData();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Form2 fm = new Form2();
            fm.RefreshDgv += new Form2.DoEvent(fm_RefreshDgv);
            fm.Show();
        }

        void fm_RefreshDgv(string a, string b, string c)
        {
            using (SqlConnection conn = getc())
            {
                SqlCommand cmd = new SqlCommand("insert into dgv values(@a,@b,@c)", conn);                
                cmd.Parameters.AddWithValue("@a", a);
                cmd.Parameters.AddWithValue("@b", b);
                cmd.Parameters.AddWithValue("@c", c);
                conn.Open();
                cmd.ExecuteNonQuery();
                dataGridView1.DataSource = GetData();               
            }
        }
    }

Hi,

I have some items with MRP. I want to apply some offer to this items like

Buy 1 Get 1 Free/Buy 2 get 1 Free / Buy 1 Get 2 Free, etc.

Suppose 1 Customer buying 2 items such as,(these items are added in Gridview.)

Itemcode   MRP

001            200

002             120

So if i am applying the Scheme (Buy 1 Get 1 Free), It will apply 100% discount to the Cheaper item i.e. item 002.

Can any one give some logic to appy this.

thanks and regards,

Sanjaya kumar mohapatra

Hello, I'm beginner for VB.Net, I put several image file paths in Access database column,

(Database has few column ID, Name, FilePath)

I want to show all the data in DataGridview with Image (Not file path)

Its like,

ID, Name and Image-----------> 1st row details

ID, Name and Image-----------> 2nd row details

I read some articles, but I really not understand how to do this, from its I can load single image in to DataGrid its like this,

Dim NewImage As New DataGridViewImageColumn()
Dim Pics As Image = Image.FromFile("C:\Users\Public\Pictures\Sample Pictures\Tulips.jpg")
NewImage.Image = Pics
DataGridView1.Columns.Add(NewImage)
NewImage.HeaderText = "Photo"
DataGridView1.DataSource = ds.Tables(0)

I have a combobox which has been populated from an sql query with datareader.

I then have databound textboxes on the screen which I would like to have their text changed based on the scrolling through the combobox. 

The combobox's values will change based on other criteria...but the value is a number which is a unique identifier of each field.

combobox contains a contract number which is unique. and the textboxes contain other information like person who signed the contract, date, place ....all specific to each contract number.

Any help would be very much appreciated!

hi,

I  a column tinyint having 1,0 , i want to show true and false in gridview, or datatable.

please tel me how i accomplish the task.

yours sincerly.

Hello,

I have a project that has a binding Navigator and I have it binding to certain fields on the main form.  I want to create a subform that is visible on the main form.  When the user changes records I want the data within the subform to also change based on a value in the main form.   It is like Microsoft access and the subform control.  If I am doing it incorrectly and there is a cleaner way please let me know.

Thank you for any help.

I can see that this can be done if you look up the data from a data table, but I have a lot of simple unchanging options list which do not need to be soft coded in the database. However, I want to store a simple code and not a full description of the item.

The combobox's collection gives a list that is displayed and the "value" of each item is the same. I am look for the collection to be

<ID1> <display item>

<ID2> <display item>

Where the combo box shows the <display item>s, but the "value" of the field is <ID?>

 Any ideas?

Don C

i want to create a share point site and want to display a combo box there. this combo box box can have value as 1,2,3. according to the value selected in combo box, I want to display the data in list present at the pages of sharepoint site.

on some pages I have webpart which displays the excel table views. According to the value selected in combo box, I want to do dynamic linking to the excel. I would be having multiple excels at documents location.