Datagridview In Dialog Reporting Old Values?
Oct 6, 2010
I have a dialog that is displayed concurrently with the main form and it has a datagridview showing a list of x,y values. The user can actively change the DGV in the dialog, but if I reference the DGV from the main form, it will not capture the user changes, but report the original values that were in the cells. I'm sure there is some sort of refresh or update event I am missing, but I have tried all the VS suggested options for the DGV and the dialog that seem relevant with no luck.
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Mar 26, 2008
I am using VB2008 Express and a MSSQL Server 2005 db by the way! I have a comprehensive SQL statement, which should fill my Grid:
DECLARE @Sum NUMERIC(9,2)
SELECT @Sum = SUM(I_LS.lmenge)
FROM dbo.lfs AS I_L
[CODE]...
Now here is my problem! I want to have a form with a datagridview that displays all of the values I am querying. This shouldn't be a problem I guess. However, I have no idea how I can integrate two textboxes that can be used to enter the selection criteria (WHERE I_L.lfsnr LIKE '%1253') AND (l.sped_journal = '11-08')[/SIZE]. I have googled and read many threads so far but didn't stumble upon anything that would suit my needs and answer my question. Maybe it's just too elementary!? By the way, it is very important that the input of textbox1 ((WHERE I_L.lfsnr LIKE '%1253')) is linked to 3 positions in my SQL query to define the search criteria!
The worst thing is that I don't want to have a bindingnav displayed! I do not need any delete, update or add functions just the select option, however!
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Mar 15, 2011
I have a DataGridView (dgv) on a Windows form (VB.NET) which is bound to a datatable. One of the bound columns is a an ID (Foreign Key) to another datatable. All I want to do is Hide the ID column and populate an unbound column with the Name (ParmName) for the user. I searched the foreign value in the datatable and retrieved the information. I set the Value of the cell in the Datarow. All works well, but does not display. The cell accepts the value...I can even Debug.Print the values to the console. They are there just nothing displaying in DataGridView. Nothing odd about DataGridView. Should be straight forward...
My Code
,
Dim dtParm As DataTable = MyDataSet.tblParameter
Dim dgv As DataGridView = Me.dgvResultNum_DataGrid
[code]....
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Aug 7, 2010
I'm making an HTML page writer and need to be able to add a background color with the color dialogue in vb
Here's my code:
Private Sub ColorsToolStripMenuItem_Click(ByVal sender
As System.Object,
ByVal e As System.EventArgs)
Handles ColorsToolStripMenuItem.Click
[Code].....
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Jul 16, 2010
I have some reports that I use with the MS ReportViewer and I need to get a count of the physical pages (as opposed to logical page count) to use with a print dialog. I've implemented a workaround so the ReportViewer control displays the correct number of physical pages, but is there a way to get that value from the ReportViewer control? The only publicly accessible property gives the logical page count.
[Code]...
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Apr 15, 2011
I have a table with field data. Each row in the table represents a field on a contact. One row would contain the contact ID, the type of field (ex. "Email"), and the actual value of the field ("here@that.com"). Now i want to list all the emails for 1 contact in a single row (like "here@that.com, a@b.com, test@this.com").Can I do this with an SQL function in a GROUP BY? Something like:
Code:SELECT ContactID, SOMEFUNCTION(FieldValue) FROM Contacts GROUP BY ContactID
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Mar 23, 2011
I bound datagridview to bindingsource. The bindingsource has its datasource a collection Called Rates which is a collection of Rate items. The rate object has a property called VALUE. I need the user to be able to edit different values for the collection; However, on the datagridview, i need to keep displaying on one column called OldValue the existing Rate value before the change while allowing the user to edit that value in a second column called NewValue.
In other terms, One colum OldValue will keep the existing values from the DB before being edited by the user, this column OldValue is readonly. Another column NewValue will display, the 1st time, the old value from the DB (similar to OldValue when we do the Fetch from the DB), but it`s editable column, so the user can modify each value in the column NewValue without overriding OldValue cells. For now, I bound both columns OldValue and NewValue to the same property VALUE of the Rate object,
[Code]...
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May 22, 2010
I have an SQL Insert statement and I want to use as values the controls on a form. How does one get the comma between the substituted values? i.e., VALUES('" & combobox.text & "' & "," & '" & city.text & "')" I get an error when it's entered like this.
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Jan 2, 2011
i made on my parent window a datagridview that connect to a databasei have also a menu i have added a button
in the dialog i have 7 label's and 7 textbox's
-Name + textbox
-Sur name + textbox
[code].....
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Jul 13, 2011
I have a d.g.v. with two columns. One is set as date and the other is set as decimal. If there is a row and a number is typed in the decimal column, you can delete it and leave the cell empty. However, the program will not let me delete the contents of a date cell and leave it empty. It just gives me the default error dialog saying that I need to put the contents in proper date form and it doesn't let me leave it blank.
How can I make it so that it allows me to leave the cell blank?
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Sep 9, 2010
I use this code to export my datagridview to excel. bu this does not give the user the posibility to choose the location or the name of the file. How can I do this?
Private
Sub
Button1_Click(ByVal
[code]....
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May 20, 2010
i got this error in my code when the program runs i dont know what am i doing wrong Datagridview Default Error Dialog The Following exception ocurred in the datagridview System.InvalidOperationException: Binding Source cannot be its own data source.
[Code]...
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Oct 22, 2008
I created a connection string for an excel file. I prefer this method as opposed to creating "Excel" objects since it is not restricted to a specific version of Excel.When I connect to the excel file, I step past the first few rows since they have data that is not needed. When I reach the first field that contains a date, then I begin my data import. However, at that point (A8), it shows the cell in the "A" column as having a Null value even though there is indeed a value in the cell. Columns "B" and "C" are fine.
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Dec 14, 2009
I am making a game and decided to add a high score section. I currently have this code setup to insert and read from the database, I set the insert code to a bottom just for testing purposes.[code]There are three columns in the database rank, score and name. I set the rank to auto number so the database would assign the player rank automatically, how would I go about inserting the score into the relevant place inside the database and moving the other scores to their new relevant places?
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Aug 5, 2009
I've tried different approaches to query a simple xml and compare one of it's values but none of them worked well.
Consider the following XML structure:
<?xml version="1.0" encoding="iso-8859-1" ?>
- <Shops>
- <Shop>
<text>Northampton</text>
<value>NN</value>
<currentdate>050809</currentdate>
<labelcounter>1</labelcounter>
[Code] .....
I have the shop name in a drop down list which is ShopsDDL and it's set to autopostback. What I want to achieve is:
On postback, check for a xml node where node's text = shopDDL shopname
And retrieve also this node's currentdate and label counter.
Rhen, if the node currentday = today then increment labelcounter by 1
Else set labelcounter = 1 and currentday= today
My problem is the XML query, I can do all the logic as soon as I manage to retrieve data from the XML.
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Jun 17, 2012
On my Winforms app, I have a primary form with a DataGridView bound to a database Entity datasource.
The grid is set up not to allow inserts. Instead I have a button on my form that kicks of a second dialog where the insert takes place (ie. with friendlier ui than is possible with the DataGridView).
The insert is working fine.. query of the underlying table in db shows that the record has been inserted. However, I can't seem to get the DataGridView on the primary form to see the new data just created by the second dialog.
I have read many Stack Overflow q & a's and tried various solutions to get the DataGridView to refresh to show new data.. but nothing works.
This must be a common situation ?? Can someone suggest some VB.NET code that will work ?
[Code].....
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Jan 3, 2011
I tried to make a phone book but I having some problems inserting it to the databank and then updating the Datagridview. I use a Dialog to input the contact details. I have 7 dialog's and 7 Label's.
Name + Textbox for giving contact details , ...
Then I click the button and I thought to use this code
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'I have set it to false so they have to use the dialog to make the contacts but I don't think its the best way'
Form2.DataGridView1.AllowUserToAddRows = True
'Simple Check For checking phone number and Name has values(user must give the value)'
[Code] .....
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Jun 10, 2008
Once again I have hit a brick wall here. I have a combobox in which the user types the server name and then clicks on button 'CONNECT' to populate the next combobox which contains all the databases in that
server. Then after the user selects a database, I have another button that he/she click and I want to retrieve file groups from a specific table. At this point when he/she clicks on that button I get an error: "An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)"
[Code]...
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Jul 29, 2011
here is my code i got an error when i try to save the file
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim saveLocation As String = String.Empty
[code].....
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Sep 23, 2008
Trying to make a vb.net program that is able to read values from an access database and pass them into some data sets. Here is the code I have so far, with the error line between the two dotted lines:
[Code]...
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Sep 15, 2010
What iam trying to do is selecting rows on multiple column values. But the statement below doesn't preform like i thought it would...
Code:
Select Distinct Variable From TableName Where (ColumnA Like"%AAA%") And (ColumnA Like"%BBB%")
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Mar 18, 2008
How Do I show the values from the dataset to the text box based on the selection from the combobox list i already populated the combobox my code is. [code]
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Apr 8, 2009
I have a DataGridView on a form in VB.NET, that is being populated from a SQL table dataset by giving criteria from a previous form. I have 6 columns in the dataset, of which the last column should be combo box column containing items "Done" and "Pending". How do I make this bound column to a combo box column and display the value as well as the alternate item too in the combo box?
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Jan 11, 2010
I have a problem with a datagridview control, when first loaded with existing data it shows the correct rowcount figure.However, I have a function that when invoked triggers an oledbcommand to clear those records from the database (access) and load new ones from a file (excel/text).The oledbcomands work fine, and the gridview refreshes with the new data fine. However, the rowcount after this refresh is always 0, even with records. What I am doing is creating a module for my app that allows the user to specify the column title and types for a file import - and the procedure will read the header row from a txt/csv or excel file automatically.[code]If I just make edits in the datagridview (as in not invoke the above) the rowcount returns properly.If I close and re-open the form the new data appears, and the rowcount property returns fine also, but I don't really want to have to tell the user to close and re-open it before making any changes.I must be missing something on the refresh or with the datatable or adapter side of things.
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Apr 18, 2008
My problem is once I filter my datagridview I cant seem to be able to update the database. The error I get is Concurrency violation: the Update Command affected 0 of the expected 1 records. Why is it that I cant update after i filter????
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Oct 3, 2008
find this forum specially the solution to my problem I use these two lines to delete a row in DataGridView and in the DataBase but it do not works:
Code:
DataGridView1.Rows.Remove(DataGridView1.CurrentRow)
ColegaTableAdapter.Update(ColegasDataSet)
[code]......
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Oct 17, 2008
I have a datagrid bound to a datatable. The datatable will then be written to an xml file using the built in "WriteXML" function, which is sweet!
What I would like to do is update the table then overrite the existing XMl file when a cell value changes.
The problem is the "CellValueChanged" event is fired before changes are actually committed to the dataset. I do not want to use the "CellValidated" event because it will fire for each row when the file is forst loaded into the dataset and displayed in the datagrid.
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Nov 12, 2008
I have a datagridview and has two columns(UserName and Age), what want to do is to get the UserName that has lowest Age.
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May 14, 2010
I'm connecting a MS-SQL remotely with VB2008 Express.I defined two different methods - the first one is copied from my old VB6 application, which is working perfectly.In this application, the retrieved data is added to a listview control, not datagrid!
Code:
Dim myconn As ADODB.Connection
Dim MyRecSet As ADODB.Recordset
myconn = New ADODB.Connection
[code]....
The SQL query contain several table, thus I used a "*" instead for the table name- not sure this is correct?
Code:
da.Fill(ds,"*")
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Apr 23, 2012
I want to make my checkboxes to work as a filter for my DataGridView. The checkbox.text is the thing I wanted to use for filtering.My problem is that, when I click on the button with one or more checkboxes checked, my datagridview shows no data. (Of course, before I pushed the button it did).
[Code]...
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