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Combobox keyup vb.net example
Combobox keyup vb.net example












Unfortunately there is a reqirement for autocomplete.

combobox keyup vb.net example

This is definately in some way due to autocomplete, because if I make them all autocomplete false this doesn't happen. there are occasions when, for instance, I have set the selectedindex to, say 122, via selecting a concept number, and when I click or tab to the next combo, the selected indexes seem to be set to 0! Very irritating. On a winform I have three combos all populated from the same arraylist.A concept number, an item number and a name, all related and associated.

combobox keyup vb.net example

Is it my imagination or do autocomplete combos change their selected indexes when they are selected? I have an app where this seems to be happening. I seem to be (as usual) confused by the behaviour of autocomplete combos. If dt.ToString is in some type of "date/datetime" format, you have to enclose the value with the # (pound sign), like this. One last observation I don't know what format "dt" is in, but if you have the MS Access field set to "DateTime", and you are attempting to send it a string value (dt.ToString)(if dt is a date in string format), then that will fail every time. If you do change the MS Access field type to "Number", the sql string should look like this: cmd = New OleDbCommand("INSERT INTO Transaction VALUES('" & ("'","''") & "', " & AccountNo & ", '" & dt.ToString & "')", cn). This way, you can remove the ' (apostrophes) surrounding your number in the sql string ('" & AccountNo.ToString & "','"). Also, for inserting numbers into MS Access Database, you may find it easier if you set the "AccountNo" field in the database to "Number", instead of "Text". Try this: cmd = New OleDbCommand("INSERT INTO Transaction VALUES('" & ("'","''") & "', '" & AccountNo.ToString & "', '" & dt.ToString & "')", cn). MS Access rejects some non-alphanumeric characters like ' (apostrophe), if not formatted properly. IFoundIndex = cbo.FindStringExact(cbo.Text) SAppendText = sFoundText.Substring(sTypedText.Length)Įnd If End Sub Public Sub AutoCompleteCombo_Leave( ByVal cbo As ComboBox) ' Append then found text to the typed text to preserve case ' Use the ListControl.GetItemText to resolve the Name in case the Combo ' was Data bound ' If we found the Typed Text in the list then Autocomplete If iFoundIndex >= 0 Then ' Get the Item from the list (Return Type depends if Datasource was bound ' or List Created) Return End Select ' Get the Typed Text and Find it in the list ().Public Sub AutoCompleteCombo_KeyUp( ByVal cbo As ComboBox, ByVal e As KeyEventArgs)ĭim sTypedText As String Dim iFoundIndex As Integer Dim oFoundItem As Object Dim sFoundText As String Dim sAppendText As String ' Allow select keys without Autocompleting Select Case e.Ke圜odeĬase Keys.Back, Keys.Left, Keys.Right, Keys.Up, Keys.Delete, Keys.Down Private Sub MyGrid_AfterEnterEditMode(sender As System.Object, e As System.EventArgs) Handles ui_ugWelds.AfterEnterEditMode

combobox keyup vb.net example

ActiveCell.IsInEditMode And UIHelper.IsValidEditorCharacter(e) Then

combobox keyup vb.net example

PerformAction(, False, False)ĮlseIf Not. ActiveCell.IsInEditMode And (e.Ke圜ode = Keys.Enter Or e.Ke圜ode = Keys.Return) Then Private Sub MyGrid_KeyUp(sender As System.Object, e As ) Handles ui_ugWelds.KeyUp Private keyPressed As String = String.Empty I have the following to allow this for a text box. I am currently only doing this for a text box as Boris has suggested in a previous post, but I thought I'd start a new thread for this one as it is slightly different. I set grid to only select a cell when it is clicked in InitializeLayout as follows: On doing this I want it to automatically select the first entry that matches. I want to be able to allow a user to press a key on the grid and forward the key press to the cell that contains a drop down/drop down list.














Combobox keyup vb.net example