I have a combobox that is bound to a database.After I click "New Record" to insert a new record, I want to default to the first item in the Combobox list. This will speed up user input.any ideas. I have tried most ways but this should work correct:
cmbAssetLocation.text = cmbAssetLocation.Items.Item(1)
But nothing throws an error.
There is a connection in my program to SQL Server and there is a query which is bound to a combo box, to pull out values from the database. For some reason, I get an error message during run-time, saying that the syntax is incorrect.
Here's the query:
'The SQL Command to be executed:
projs = New SqlCommand("use " & Me.ComboBox1.Text & "''" & _
"go" & _
"select name from projects where condition = 'Y'", cnn1)
cnn1 is the name of my SQL Client connection.
in my application i am using table called teacherdetailloading which will bound combobox here is my piece of code:
[Code]...
I have a form which is bound to a table that includes information about properties (real estate). Each property can have a number of inspections. These inspections are included in a separate table.
I want to use the form to show the property information and a data repeater to show all the inspections for that property.I can't seem to get the data repeater to bind to the inspection table and pull only those records related to the property information table. In fact, the data repeater shows nothing.
I can get a data repeater to show all the records in the inspection table when I put the control on its own form, for testing purposes.
For example; I have a DataGridView bound to a MYSQL Database. There are two string columns "Name" and "Gender". I need to make the "Gender" column a ComboBox where they can select "Male" or "Female".
View 1 RepliesI'm using vb.net in vstudio 2005. how do I get the value from a combobox when I have it bound to a dataset?
View 5 RepliesI have a data bound combo box which i want to open at a certain row in the table
i can't set the selectedvalue because it is databound
I have a combobox2 this is bound to a datasource, which is an arraylist calledListItems.Everything is correct after the first For Next Statement - the listbox1Combobox1, and ComboBox2 all have 11 items. After the second for next loop, Listbox1 and ComboBox1 have 6 items, but ComboBox2 has 11 items, even though ListItems has only 6 items.
ListBox1.Items.Clear()
ComboBox1.Items.Clear()
ListItems.Clear()
[code].....
Need some direction not looking for code,
How do I add text such as 'please select' to a bound combobox that populates from parameters?
I want to make this text the selected index 0.
Has anyone here tried putting a combobox to a bound datagridview? The selected value of the combobox will depend on the value of the corresponding column in the database.
I have a datagridview. When the user clicks the edit button, the application fetches the records from the database and binds it to the datagriview. But I want to show the Gender Column as combobox with selectable 'Male' and 'Female' values.
How could I add a combobox to bound datagridview?
I bind a datatable to the combobox.DataSource on load. I then give the combobox aisplayMember and a ValueMember (2 different columns out of the datatable). In the SelectedIndexChanged of the combobox I would like to use the SelectedValue property of the combobox, just to test I MsgBox(combobox.SelectedValue) and I get "Argument 'Prompt' cannot be converted to type 'String'." Why isn't it displaying the value?
OnLoad
cbCISoftware.DataSource = dbMaps.Tables("maps")
cbCISoftware.ValueMember = "id"
[code].....
I am creating a DataSet:
objSQLCEConnection.Open()
objSQLCEDataAdapter.Fill(objSQLCEDataSet, sSQLCETableName)
Then populating a DataGridView with the data:
DataGridView1.DataSource = objSQLCEDataSet.Tables(sSQLCETableName).DefaultView
I have a string field, EventAction, that is in the database.I want that column to be a combobox column.I want to add the different EventActions to the list and let the user select the action they desire.
Returns a list of customers with whitespace on the end.. very annoying .what can i do to trim in code behind?Also if I bind using the databinding on smart tag is there a way to trim?
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Appropriate Title would be: Bind comboBox Tag to database.I have a comboBox on form which is bounded but and I need to populate it manually. With some reading on net i have found a way but it is not working
I can populate my combo, select item in combo, update database but the problem is when I load my form it displays empty combo (combo is fulled with my custom data but nothing is selected it must select correct ItemText) and after selecting a value in combo, the value disappears as soon as combo losses focus .
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I have a bound combo box that choose employee profiles and fill the form controls.
I can edit the selected profile nicely, but how to delete that selected profile?
The combo box is bound to a sql table. When i use the...
cbox_profiles.Items.Remove(cbox_profiles.SelectedValue)it says: "Items collection cannot be modified when the DataSource property is set."
So how can i delete this selected item or any item i want from that bound combo box?
I've got a combo box that's bound to a virtualpathbinding source. The column it's bound to (Display and value members) have duplicates that I'm trying to hide/remove.
I cannot remove the duplicates programatically as it errors (the control is bound, cannot change data).
I am using a bound combobox control in a vb.net application. How do I set the combo box to an item if I know the value of the ValueMember, but I don't know the DisplayMember. I can use the FindExactString method if I know the DisplayMember, but not if I only know the ValueMember.In explanation, the value member is an employee Number, the display member is the Name. I get the employee number from a detail item in another table and now I want to set the combobox to display the Name that goes with that detail item.
Can someone post some vb code to show how to do this.
I have a datagridview bound to a datatable. I want replace one of the cells with a combo box and bind that combobox to one of the columns in the datatable. I have been able to replace the cell OK but currently have two issues I have not been able to resolve.
1. When I add items to the drop down (items.add ("Yes")...) they don't appear in the drop down box.
2. I can't figure out the syntax to bind a particular column in my datatable to the newColumn(combobox) in the datagridview.
dbConnection = New OleDbConnection
cmdCommand = New OleDbCommand
Try
[Code].....
I have been asked to convert a column (11) in a datagridview. The dgv is populated in code thusly:
Dim dt As DataTable = MyDAL.GetDataTable(SQL, Params)
With dgvContracts
.DataSource = dt
.Columns(0).Visible = False
.Columns(1).Visible = False
[Code]...
I have looked all over the web for a way to set up a VB 2008 combobox but what I have seen makes me shudder! I want to , as In Access VBA, set the recordsource/datasource for the combobox i.e. the list shown in the combobox, to the values of another table (currency) and then when the user selects one of these values to store it in the (already) bound field of the combobox (to another table). In Access of course there was a wizard for this sort of thing, but in VB 2008 looks like it is just lots of code.
View 7 RepliesI'm loopiing through a datagridview and I want to get the selected value in a combobox, not the bound column's value. (I'm putting the contents of the dgv on a Word document.)
For icounter = 0 To Me.ConversationTblDataGridView.RowCount - 1
range.Text = range.Text & Me.ConversationTblDataGridView.Rows(icounter).Cells("PersonID").Value <-- I want to change "Value" so I get the displayed value, not the person's id
range.Text = range.Text & CHR(13)
Next icounter
It will not take .DisplayMember or .SelectedItem and .Selected returns True of False. Can anyone tell me how to get the name that shows in the combo box instead of the id number?
I have created a search/query facility after watching one of Beth Messi's videos. I notice that we can convert the textboxes on the auto generated search toolstrip to buttons, comboxes, etc. So, when we wanna search for a data in the datagridview, we enter a keyword. I wonder if it is possible to change the textboxes to comboboxes and make it bind to the datasources, so that users can use the drop down, instead of typing?
View 6 RepliesIn the form below you see how the initial selected item is the first record of the table.. these controls are bound.. I want to initially show "Select one" in the combo box or nothing at all and the other controls not to be bound until an actual item is selected in the combobox..
View 1 RepliesI have a combobox that is bound to a dataset. The dataset has 3 columns of data. at any given time there could NOT be any data in the dataset.
When someone selects an item from the box I want to store data from 2 of the columns of the row they selected.I do the 'store' in the selectedindexchanged event.
so currently I am assigning each column/row value to a property from a datarowview i get from combobox.selecteditem.
Code:dim column1 = drv.row.item(0).tostringdim column2 = drv.row.item(1).tostring
But I am getting NullReference exceptions all over the place when there is not data.So i have to wrap it all in a try catch and assign nothing to the properties when the Null exception fires.
I want to also validate that there is a selection made. There must be a selection made if there is no data in the DS fill it.I do this in the combobox validate event.
It just seems like there is a better way to check for no data coming from the combobox.
I wish there was a way to do some sort of .count on the datarowview you get back from the combobox.selecteditem but anything i have found also gives a null ref exception if used.
Also what is used to programmaticly change the selected item?
I have a combobox that is bound to a dataset.The dataset has 3 columns of data.at any given time there could NOT be any data in the dataset.When someone selects an item from the box I want to store data from 2 of the columns of the row they selected.I do the 'store' in the selectedindexchanged event.so currently I am assigning each column/row value to a property from a datarowview i get from combobox.selecteditem.
Code:dim column1 = drv.row.item(0).tostringdim column2 = drv.row.item(1).tostring
But I am getting NullReference exceptions all over the place when there is not data.So i have to wrap it all in a try catch and assign nothing to the properties when the Null exception fires.I want to also validate that there is a selection made. There must be a selection made if there is no data in the DS fill it.I do this in the combobox validate event.It just seems like there is a better way to check for no data coming from the combobox.I wish there was a way to do some sort of .count on the datarowview you get back from the combobox.selecteditem but anything i have found also gives a null ref exception if used.Also what is used to programmaticly change the selected item?.selecteditem.selectedtext.selectedindex.selectedvalue?
I have a data-bound combobox that pulls values from a BindingList(of T). Combobox loads fine, correct values are displayed (I'm not using SelectedItem or SelectedValue). I'm using properties and connecting the data to the control via a bindingsource.
What I want is if the user types text into the combobox, I want the data from the bound table to change to that new text, i.e. edit the bound data directly.
Easy as pie to do with a textbox, but can't seem to get a combobox to work this way.
I was trying to use the validated event of the combobox to write the data to the datasource, but it doesn't fire when I press enter. Is that the way to do it? Can I not link the data to the combobox directly?
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]....
I have Combobox "Combo5" with a string value selected by the user.
How would I assign that selected value to another variable that I want to use later on or how od I refer to a combobox value that is currently selected?
I just want to know the right practice for database application. as of now i am creating a simple database application where the database is all bound to the control for minimal coding purpose. is it a good practice?
View 3 RepliesI have a form with 3 datagridview controls that are bound to tables in a sql database. When the form loads for the first time the data is displayed correctly. If I add data to the db on another form then show the first form again the data displayed does not include the new data. If I close the app and then open it again then the new data is displayed.I cannot figure out how to manually refresh the gridview. I have tried calling the fill method of the adapter, using the refresh method of the gridview and parent control and form with still no luck. I have a ASP.net project I'm working on also and it is so easy to refresh the sqldatacontrol and the gridview and I would have though a win form would have been just as easy if not easier.
View 2 Replies