Forms :: Clear The Dgv When The User Blanks The Combobox Without Necessarily Changing The Selection Index?
Oct 25, 2010
I have just realised that ComboBoxes don't have a Change event. I have a combobox filled with a few items, eg. Bakery, Deli, Fruit & Veg, etc. Choose one of these items, all the related items show in the dgv. However, when I blank the text in the Combobox (press Delete key whilst Combobox has the focus), what event fires so I can blank the dgv? The combobox does not contain a Blank item. Even if it does, the Blank item only fires the ComboBox1_SelectedIndexChanged when the user scrolls down to, or clicks on, the blank value.
I want to clear the dgv when the user blanks the combobox without necessarily changing the selection index.
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Nov 17, 2009
I am using the following code to populate a picturebox at form event load
c
Me.PictureBox1.Image = Image.FromFile(String.Format("{0}{1}.jpg", Subject_Values.TextBox1.Text, Me.list1_MLStxt.Text))
[code].....
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Jul 16, 2009
I have a ComboBox, and I have a GroupBox. What I want is for the content of the GroupBox to change when I change the selection of the ComboBox.
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Nov 19, 2009
Ok so i'm trying to set up my program so that when I choose WinRar it opens a new window asking which architecture to use. I have a combobox set up with both architectures in it. I have the accept button disabled so that you have to choose an architecture and I figured out how to make it so that when you select one architecture it will enable the accept button but if you choose the other architecture it disables the button.
Private Sub cmbx_rar_wdw_arch_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmbx_rar_wdw_arch.SelectedIndexChanged
If cmbx_rar_wdw_arch.SelectedItem = ("32-Bit (x86)") Then
[code].....
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May 8, 2012
im wanting to add a new feature but am unable to even get started. I'm in a windows form in visual basic .net and basically, I have a combobox with 3 items in the drop down menu. I would like to make it to where the moment one of the items in the combo box are selected, the program recognizes the change of index and automatically calls to the function of my choice.
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Jan 18, 2012
I seem to be having issues with the selected index on a list box.
The list box is having various items inserted depending on the user selection. An example would be:
LiIndex = ListBox1.Items.Count
ListBox1.Items.Insert(LiIndex, "Item1")
LiIndex = ListBox1.Items.Count
ListBox1.Items.Insert(LiIndex, "AND")
[CODE]......................
This all work and displays without a problem. The issue I have is if I select the second of the two AND's. If I click the second "AND" in the list and then a button to fire a method, the selected index is always the index of the first "AND". Dim listIndex as integer = ListBox1.SelectedIndex
I can't work out why, the listbox itself will always show the second one as selected, but the action will happen against the first one.
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Feb 3, 2009
I have a combo box that has multiple options, when the user selects one of the options (world wide city destinations) a specific value is assigned to a variable. For example if "New York" is selected the variable "x" is assigned the number 155. What I want to do is output the destination that has been selected ie "New York" in a label called "lblOutput1", do I need to store the destination as a seperate variable to be able to produce it in this label as I cannot seem to get it to work:
At the moment I am using:
lblOutput1.Text = "bla bla bla " + cmbDestination.SelectedText + " bla bla bla " + Today()
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Nov 26, 2009
I have a combobox with multiple names. When I select one of the names from the combobox I want to display a value(number) instead of the name itself. How could I do that?
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Nov 22, 2009
Wanted users to choose two options 1.(tick) 2 blank text so they can write things.
Was thinkin how this can be achieved using a comboBox. ?
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Aug 19, 2011
I have a combobox on a form with the dropdownstyle set to drop down. Users can either salect a value from the list, or type in any value they wish. This all works fine. However, when one particular item in the list is selected I wish to set a different value. Unfortunately I don't appear to be able to set the combobox Text property from within any of the events that fire when the selected item is changed.
[Code]...
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Jun 30, 2011
I'd like to force a user to make a selection from a combobox.I've tried to test it by Combobox.SelectedText = String.empty as well as another version similar to this but a little different.When I test it, it will tell me that it is still unselected/blank even when I selected something.
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Feb 17, 2010
I have a combobox populated from the DB with:
-ID
-State
-Tax
State is the only value that is shown.I'm trying to get the hidden value, Tax, from the combobox based on the selection but can't figure it out.
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Jan 23, 2010
I am creating a document control system for standard operating procedures (SOP) in MS Access 2007. I have just started an online VBA class and have moderate MS Access 2007 experience. This thread is very detailed and lengthy.I have the tables set up and forms created for CREATE, SUPPLEMENT etc. I need to create a user interface so that when they open the database it pulls up a form that has buttons for "Start New SOP Process" and "Modify Existing SOP Process". Every step of writing an SOP is dated so that management can have outputs for target measures (to see why it takes so LONG to write an SOP from start to finish). After the user selects "Start New SOP Process" or "Modify Existing SOP Process" I am trying to have a Combobox appear with a drop down box of change types: CREATE, SUPPLEMENT, and REVISE.
Primary Key Explanation:Each document has a 3-part number comprising a 3-part PK. 1.001v1.0. Where 1 is (1-6) identifying what type of SOP: Document Type,.001 is the Document Series (a sequential number for each type of equipment--the 2nd SOP written for a document type 1 would be 1.002v1.0) and v1.0 is the version.
For example, lets say Document Type 2 indicates field equipment. The very first SOP written for a piece of field equipment would be 2.001v1.0. If a supplement is made to the SOP for that same piece of field equipment, then it becomes 2.001v1.1, if a revision is made to that same piece of equipment it becomes 2.002v1.0. If we buy a new piece of field equipment it would be assigned SOP document number 2.003v1.0.
After a document is changed (any part of the 3-part number is changed) the previous record is put into an archive table so that the technicians/general public have access only to the most recent version of each SOP. I am going to store them on Sharepoint with an Archive Folder and an Active Publications Folder and a link to the document is provided in the database. However, while a document is being modified (going through the SOP process of reviews and drafts) the users are going to need access to the previous version until the most recent version is approved (maybe I could have the document be archived upon completion of the Document Link control).
For each Combobox option I need a different "On Click" command to open the associated forms for each "Change Type". I have the necessary forms already grouped (using subforms and tabs) for each change type: CREATE SOP (has all of the forms needed when creating an sop), SUPPLEMENT SOP (has all forms needed when supplementing an sop), REVISE SOP (all forms for revising). I am trying to use If Then statements for this...
The modify part is the simplest. I think the Combobox for the "Modify Existing SOP Process" should consist of "Change Type" (CREATE, SUPPLEMENT, REVISE), "Document Type", "Document Series", and "Document Version". I want the "Change Type" to open up the correct group of forms with "Document Type", "Document Series", and "Document Version" finding the existing record that needs to be modified (i.e. so that the user can add dates for completed activities as the SOP process progresses: draft revisions, reviews).
The "Start New Process" is even more complicated. Each change type does more unique event procedures than just opening the forms (which I can't even figure out to begin with!!). The Combobox would still be "Change Type" (CREATE, SUPPLEMENT, REVISE), "Document Type", "Document Series", and "Document Version". However the following is what I am trying to do for each "Change Type":
When "Create" is chosen from the Combobox it will find the next record in the document series by the user selecting the correct "Document Type". I would like to add a formula so that it adds .001 to the previous record (giving the next sequential number), and force v1.0 to be entered and not able to be modified, since a newly created document can only be version v1.0. Then it would open the "CREATE SOP" form (all forms associated with "Create" compiled on one form by tabs and subforms--I already have this complete for each "Change Type") and require the user to fill out all document information controls (title, description, etc) before closing.
When "Supplement" is chosen from the Combobox it will find the most recent record by the user's input of Document Type and Document Series. I would like to add a formula so that it adds .1 to the previous Document Version. Then it would open the "SUPPLEMENT SOP" form. It would be useful if the fields for the document information controls (title, description, etc) were appended to this form but it is not necessary.When "Revise" is chosen from the Combobox it will find the most recent record by the user's input of "Document Type" and "Document Series". I would like to add a formula so that it adds 1 to the previous Document Version and forces the decimal value to be 0 (revise and create change types have to end in a "0"). Then it would open the "REVISE SOP" form. It would be useful if the fields for the document information controls (title, description, etc) were appended to this form but it is not necessary.Additional buttons I would like to have on the Main Menu Form--opened when the database is opened (includes "Start New SOP Process" and "Modify Existing SOP Process") would be:
"View All Publications" where a user can not edit anything, just gives them access to the current "active" SOP links. It would be a complete list of all of our SOPs. I think I could use a query "Retire" which would put an SOP into the Archive table/folder on Sharepoint. This would be useful in addition to the automated retiring of previous version in case we discontinue use completely of a peice of equipment or administrative procedures (yes we have SOPs for EVERYTHING!!)"Target Outputs" which would be a report showing the timeline of the SOP process so that management can see where we are spending too much time (my vote is for the design of the document control system!!)"Maintenance History" which would show all previous versions for each piece of equipment and administrative procedure."List of Archived SOPs"which would show all of our inactive SOPs, for the Quality Analysis/Quality Control person's benefit.
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Apr 27, 2010
how to go about this? I have a form, frm1 w/a combobox, cboLocations, which is being populated using a sql string. There is also a frm2 w/a series of textboxes and other comboboxes. I want it so that once a selection is made from cboLocations, the textboxes and comboboxes on frm 2 are populated with the corresponding data. Here is what I have so far:
frm1:
Public Class frmLocations
Dim conn As New SqlConnection("Data Source=f03d3s-dev01; Initial Catalog=dos_track;User Id=vbuser; Password=tran3;")
Dim depot_refnbr As Integer
[Code]...
What's happening right now is that I make a selection from cboLocations on frm1 and click on the OK button, frm2 loads, but none of the textboxes are populating and one of the comboboxes, cboDepot, shows the different data when you click on the down arrow, but it's not displaying anything it its text field when frm2 loads.
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Oct 23, 2009
In my app I have a combobox and a sub wich handles the SelectedIndexChanged. It all works fine, but if the user goes crazy with the mouse scrollwheel changing the selected item in the combobox, the program will sometimes stop working for different reasons.
Now, what I want to do is to make some sort of sleep/wait function in the SelectedIndexChanged event handler, so that if the index hasn't changed in let's say 100 milliseconds, it will continue the code. If the index has changed, it will wait until the user has finished going crazy
What is the best solution to accomplish something like this? I've been thinking about using Thread.Sleep, but I can't find the correct way of doing it.
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Dec 15, 2011
When I open my form that contains a DataViewGrid the first row is always automatically highlighted in blue showing that it is selected. If I use
[Code]...
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Jun 21, 2010
I am having throuble resetting my textboxes to nothing if the selection in the listview is nothing. I.e. when i select a record my textboxes are updated with teh selected data, but if nothing is selected after something is selected I would like to clear the textboxes to blank again.[code]
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Mar 26, 2011
When I will click the suggested text shown in the combobox it will disappear.My Combobox btw is connected in a database.If I type Kev then kevin and kevsky will show at its suggestion then when I will click any of it ,the combobox text will be empty or will clear what I typed ("Kev") and will not show what I clicked.[code]
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Nov 1, 2010
I am creating the items in a combobox in my code behind. I am setting the display member and the value member. When the user makes a selection from the combo box, I need to get the value of the selected item. I have written some code, but when I step through it, it says that the selectedvalue is Nothing.
Here is the code where I am creating the items in the combo box:
Do While drReader.Read
cboTheater.Items.Add(drReader("TheaterDesc"))
cboTheater.ValueMember = CStr(drReader("TheaterID"))
cboTheater.DisplayMember = CStr(drReader("TheaterDesc"))
Loop
In the selected index change event for the combo box, I am doing the following:
Dim strTheater As String
strTheater = CStr(cboTheater.SelectedValue)
When I step thru the code, strTheater is Nothing
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Feb 5, 2011
When I clear my form, I am trying to clear the Month Calendar of all selected dates. Using this code clears everything but the Selection Start Date, I would assume there would be a way to clear this, Refresh doesn't work, and I can't seem to find anything else.
Public Sub clearScheduleControls()
Me.MonthCalendar1.RemoveAllBoldedDates()
Me.MonthCalendar1.UpdateBoldedDates()
[Code]....
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May 28, 2010
how to stop a ComboBox from displaying blank data?
The query I'm using does not allow nulls but the ComboBox is showing black areas and the user can click in those areas.
The PureComponents ComboBox did not show the blank areas but when I started to use the ComboBox from VS 2008 the blank areas are showing up.
The attachment shows me clicking in a blank area.
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Mar 27, 2011
Is there a way to update source combobox to printer combobox selection?So going from printer1 to printer2 the source will update according to what that printer has to offer.
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Feb 22, 2012
I'm having a problem with combo boxes. I usually use Java and it's been awhile since I used VB but I never remember having this much difficulty.My application is using an SDF file. From Data Sources, I drag the details on one of my Tables to my Form to get all of the fields. Three of them are comboboxes. Each of the three is an INT64 and each corresponds to a primary key in a different table. I click the tasks button on a combobox and for data source I select the appropriate table that has the data to go with the combobox, for display member I select the field that I want users to see, and for value member I select the primary key. Then I run a quick test and start the app, open the form, and add a new record. When I select a value from the combobox the selection won't validate because it doesn't think it's an INT64 like it should be. It seems to be using the display member as the actual value instead because if I change display member to the primary everything works great.
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Jan 15, 2012
I have two comboBoxes, one is CountryCombo and second is StateCombo.What I want is the that when i the clicks country combo and select a one country then the States of that the country should get populated in the State Combo.I have tried things many many many but nothing working. Below is my code of how my CountryCombo is getting filled.
query="select CountryName from CountryMaster"
if dr.hasRows()
{[code]......
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Sep 21, 2010
I'm searching for a way to change the font size of selected text in a RichTextBox (rtf) having different font families (e.g. Arial and MS SansSerif) and font styles (underline, bold...) using the FontDialog, but without changing the families and styles. The following code resets all the font attributes, which is not what I want:
[Code]...
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May 29, 2009
I know the question is a little choppy and perhaps misleading,but I have a gridview with dropdownlists on the rows. I created an AddHandler and a Delegate for the SelectedIndexChanged and it gets to the sub. Here is the code for that:
AddHandler ddlmgr.SelectedIndexChanged, AddressOf ddlmgr_SelectedIndexChanged
Public Delegate Sub DropDownList_SelectedIndexChanged(ByVal sender As Object, ByVal e As DropDownList_SelectedIndexChanged)
Protected Sub ddlmgr_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs)
End Sub How can i get the row's Id if GridView_RowCommand is not called?
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Dec 11, 2009
Just wondering if someone can at least point out where I'm going wrong here. I've already got the code to populate the listbox by a button click from the user and am just trying to figure out how exactly to alter the text of a label based on what the user selects in the listbox. From what I have the Label will display the case else selection but nothing else despite my best efforts to get it to change. Here is what I've tried. I realize it is very trivial, but I am only a beginner to programming.
[Code]...
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Nov 28, 2009
Is there any way to change the default colour to the highlight when a listview row is selected? Apparently the default blue colour causes some problems for some users who have some visual eyesight problems. They didn't tell me what colour they wanted but they did indicated the blue is annoying.
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Feb 7, 2009
i wan to display the text from combobox into the textbox and clear the combobox text when click on the button.But when i select another text from the combobox and click the button, the textbox display and overwrite the previous text.How can i do so that when click, textbox display text from combobox and clear combobox text. Then click again, display the new text at 2nd line of the textbox without deleting the previous text?
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Jan 1, 2012
I currently have a form with two comboxes. The first cbo is being populated with a project number, which is being pulled from the first column of a spreadsheet. I now want the second cbo to read the first cbo and then find that project number on the spreadsheet; when it finds that project number, I then need it to copy data from the row the project number is on. I have converted to vb from vba. Below is the code I used in vba (which obviously does not work). I only need certain cells from the project row.
Dim proj_num, rng As Range
Dim data, i As Long, j As Long
With Sheet1
[code].....
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