I've been trying to use lookup tables to display names instead of ID's in a DataGridView using a DataGridComboBoxColumn and have even copied the example shown in the Forms over Data videos produced by Microsoft but still get the following error message:
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I've been trying to use lookup tables to display names instead of ID's in a DataGridView using a DataGridComboBoxColumn and have even copied the example shown in the Forms over Data videos produced by Microsoft but still get the following error message:System. =Argument Exception:DataGridView ComboBoxCell value is not valid..Everything was done in the designer and the problem only occurs with the DataGridView; lookups work fine using a combo box when displaying single records.Also the error message only pops up when I close the form. Prior to that all the names are displayed correctly for each record, the drop down list shows the names correctly and I can edit, add and delete rows and save all my edits with no problems. Its just when I close the form that the problem occurs.Each time I press OK in the message box the names in the combo boxes are removed, one by one.
View 5 RepliesSQL statements:
SQL = "SHOW TABLES;"
Try
conn.Open()
The remarked area works fine when I'm accessing a specific table. I've successfully inserted the products_model field into the combobox too. The datagridview does show the table names in the db using the SHOW TABLES sql statment, but I'm not understanding how to get this info into the combobox instead.
in item Search form i can search the item that i want, if i found the item that i need i will select the entire row and fill this row in DataGridView in frmSWSfromGrid.i been able to achieved this same scenario but it uses textboxes.the ff. COde
frm Dialog code
Public Property DepartmentID() As String
Get
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I am attempting to read an XML and display certain portions of the XML in a datagridview. I was able to get one table at a time, but I am having trouble figuring out how to get ALL the info I want from the XML and not just one table at a time.
I was speaking to someone and they told me that my issue is that the dataset contains datatables and it's not just one big piece of information that I can use. I looked into merge code, but I haven't managed to get anything working the way I would like.[code...]
I have two tables: One wich contains the columns "first_name", "last_name" and "status_id". The other table contains "status_id" and "description".
Now, I want to display "first_name", "last_name" and "description" in one DataGridView. What is the best way to do this?
What I'm doing now, is that I'm manually adding a datacolumn to the first table. Then I'm looping through each row and filling the new column manually. Now, that doesn't seem very smart and efficient, but I haven't found any better solution.
I have a Dataset with 2 different tables. What I have to do is to display those tables in a DataGridView.What I have done with a reference is given below.
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what is the best way to load dropdown lists from reference/lookup tables for a desktop application? the application is layed out into 3 tiers. I've built up my entities.the front end has a form with 6 tabs. and one big save (another discussion :)Should I load them all when the form is initially loaded? Are there any caching mechanisms I could use?
it is vb.net app on a network drive that is accessed by several users.it's also worth noting that some reference tables may be updated. Via another form.
I have a datagridview control on a form that is filled programatically (dataadapter, dataset ) from a database table (access).
Some of the columns in this table are foreign keys to other tables. Is it possible to have these
columns as combo box columns so the values can be selected directly from the other tables?
I am trying to view all the properties of this:
Dim IISOBJ = GetObject("IIS://LocalHost/W3SVC/1")
For the life of me I can't figure out how to display all the property names of this object.
I'm having some trouble with list boxes at the moment. I need a list box to display the names of directories that are in certain a folder. How can I do this?
View 3 Repliesi have a master detail form with databound datagridviews.my detail datagridview is bound to FKFieldSubFieldLookupTableBindingSource and it shows the linked sub-fields when the main field changes. This datagrid has only one column which is the sub-field names column. this column type is ComboBox.here are this combobox details
DataSource = subFieldLookupBindingSource
DisplayMember = sub_field_name
value Member = sub_field_id
No Problem until here.When i click on the Cell combobox I get the list of all the sub-fields. I don't want this. because once a sub-field has been associated with a Master field, it should not be available for other Master fields.What i did was, In the SubFieldLookup Dataset, i added a query to get all those sub-fields which haven't been associated yet.but this clears up the detail datagrid and shows blank comboboxes where it is supposed to have the sub-fields.
I simplly want the master-detail mechanism to work and when i want to add a new sub-field, and click the combobox in sub-fields datagrid, i want to have only those sub-fields which are marked False in database in the column 'alreadyAssociated'.
Can anyone help me with finding all the table names in SQL Server Compact Edition (.sdf file)?
View 3 RepliesI'm going to describe this as simple as possible, and it a typical setup for a database...
I have 1 DataSet, 2 DataGridViews (DGV), and 2 BindingSources (BS).
The DataSet has 2 tables and 1 Relationship (FK).
Table 1 is a employee table
Table 2 is timeclock data.
Both tables contain a column: EmployeeId
FK is linked to EmployeeId of both tables.
DGV1 has it's datasource=BS1
BS1 has it's datasource=DataSet and it's DataMember=Table 1.
Thus DGV1 shows Table 1.
DGV2 has it's datasource=BS2
BS2 has it's datasource=BS1 and it's DataMember=FK
Thus DGV2 shows Table 2 filtered by what's selected in DGV1.
Now when I use the mouse or keyboard to select a cell in DGV1, the relationship causes DGV2 to update to only show data from Table 2 where the EmployeeId row equals that from the selection in Table 1. With me so far?
Well all that works great. But what if I need to programmatically select a row in Table 1 to cause Table 2 to update? I've tried everything I can think of, but Table 2 NEVER updates when I attempt to programmatically select a row or cell in Table 1.
I have mysql database with one table , and I want to show the columns' names re;taed to the table in combobox in vb 2005
this is my mysql command :
SQL1 = " select column_name from information_schema.columns where table_name='others'; "
this is my code after execute the command and store the data set in variable ( DS ) which its type is "DataSet " :
If DS.Tables(0).Columns.Count > 0 Then
For j As Integer = 0 To DS.Tables(0).Rows.Count - 1
list1.Items.Add(DS.Tables(0).Rows(0).ToString)
Next (j)
End If
I have one application create tables in database dynamically during run. Another application need to find all these tables' name in the database. how should in do in vb.net
View 7 RepliesFor my app users can enter a SELECT statement themselves. This can be any select statement at all, it will be mainly used for creating a quick view e.g. SELECT * from table1 LEFT OUTER JOIN table2 on table1.id = table2.id.
Whatever this select statement maybe I load it into a datatable (after checking for no nasty stuff of course) in vb.net. I want to know the table names so I can query the database again for validation purposes on things like datatypes etc.
da.SelectCommand = New SqlCommand(sqlStatement, tempDB.Connection)
da.MissingSchemaAction = MissingSchemaAction.AddWithKey
dt = New DataTable
da.Fill(dt)
For my app users can enter a SELECT statement themselves. This can be any select statement at all, it will be mainly used for creating a quick view e.g. SELECT * from table1 LEFT OUTER JOIN table2 on table1.id = table2.id.Whatever this select statement maybe I load it into a datatable (after checking for no nasty stuff of course) in vb.net. I want to know the table names so I can query the database again for validation purposes on things like datatypes etc.
da.SelectCommand = New SqlCommand(sqlStatement, tempDB.Connection)
da.MissingSchemaAction = MissingSchemaAction.AddWithKey
dt = New DataTable
da.Fill(dt)
I just posted a previous question about updating the connection string. It works fine, but it makes my select command fail. The SqlException was handled that Invalid column name 'Username', 'Password', 'UserType' which they are already in my User table from my database.Below is my select command:
myConnection = New SqlConnection("Server=RAVY-PCRAVY;Database=CIEDC;Trusted_Connection=True")
myConnection.Open()
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I am writing a service to get a count from a table on an SQL server. THe SQL box is in the same domain, and the service is runnign under the same account as the SQL box.
The box service is running on is Win 2008 in the domain. The interesting thing is that when I use this same code and run a normal EXE on that server, it runs no issues. In a service it crashe with:[code...]
have a datagridview containing 2 tables left joined, so that:table1 LEFT JOIN table 2 ON table1.id=table2.idI get an error whenever I try to edit my datagridview."invalidOperationException was unhandled by the user codeDynamic SQL generation is not supported against multiple base tables."The error points to this line:
da.FillSchema(dt, SchemaType.Mapped)
da.Update(dt) << This line
'da = dataadapter
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I want to see if anyone has used one table that has a primary key (not displayed) in the DataGridView. Then use a text box on the same form to call and group what if viewed in the DataGridView table. I want to group the displayed data of the DataGridView by the primary key of both tables.
View 1 RepliesI have a table called MEMBER with fields for mem_id, mem_name, mem_addr, mem_city,mem_state, mem_zip and another table called STATE with state_id, state_addr, state_name in Access 2007.On the Visual Studio 2008 form, there is a combo box for the state. The goal here is to display the state abbreviations, but use the state_id value for the mem_state (there is a foreign key between those two fields).The mem_state is defined as number, the state_id is autonumber. Under the mem_state definition in Access, I used the lookup wizard (on the database that is in the bin/debug folder) to set the following properties:
Display Control - combo box,
Row Source Type - Table/Query,
Row Source - SELECT [State].[state_id], [State].[state_abbr] FROM State ORDER BY
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I started a forms solution in VB 2008, created a datasource to an access database (2010) and used the datagrid view to display the data. 3 fields in the access database are lookup fields with 2-8 values each, typed in by me, since the linking to other fields did not work. This is not working either. When I change the column to combo-box or not, those values, typed into access, are NOT showing up in the datagrid. the combo box has its drop down arrow but the value fields are empty.
View 10 Repliesi have problem in my search button after i search the name it didn't highlight the name of the person.this is the code that i found on the internet.
Dim searchName As New TextBox
Dim sname As String
sname = InputBox("Search for gym user." & searchName.Text)
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Table gpass has data as
gate-----date-----c----bno----acccode----tittle----weight-------qty
1----18/01/2010---a----2--------2----------abc-----10.00-------15
Then there are two textbox having values as
txtgat.text=1
txtdat.text=18/01/2010
I these codes and it generates error message as ArgumentOutOfRangeException was unhandled.Idex was out of range. Must be non-negative and less than the size of collection. Parameter name: Index
Private Sub txtGat_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtGat.TextChanged
If Len(Me.txtGat.Text) > 0 AndAlso Me.txtDat.Text IsNot Nothing Then
str = "Select * from gpass where vou_no= " & Val(Me.txtGat.Text) & " And Date = '" & Me.txtDat.Text & "'"
dt = GetTable(str)
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Since the results have some fields as NULL, I want to display a zero "0" wherever the value is null. I saw a single line of code yesterday on the forum which does the job, I'm unable to find it now though.
View 14 Repliesi already add a datagridview combo. now what im asking is how can i make it the same as the DropDownStype which is DropDown and not just like a DropDownList?
View 1 RepliesI am using VB.NET in VS 2008 Professional. I wish to have my user select the server where the SQL Database resides. I can get a list of the SQL databases, but I am stuck on how to display the servers currently available to the user? I want to add the list of servers available into a list box and have them select the server.
The thing I am trying to duplicate is the drop down list of server names when you are doing an Add Connection from the Data Connections node of the Server Explorer.
I found sume code in VB6- but converted it to VB.NET 2010. The program puts all of your drives into a listbox but its only the letter name, how can i get the drive name too? Here is my
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