Populating Text Box On DropList Index Changed Not Working?
Aug 15, 2011
I am using the following code to populate text boxes based on a drop down list index change event
Private Sub DropDownList1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As WinControls.UI.Data.PositionChangedEventArgs) Handles DropDownList1.SelectedIndexChanged
[Code]....
The code works until it gets to the last item if there is only one item in the dropdown box it does not populate the text boxes, if I loop through the code it is going to the droplist index change but it goes from dr.Read() and just jumps to dr.close() without populating the text boxes?
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May 19, 2011
I have a repeater with a dropdownlist in it. When a user changes its index, I would like a label to change its value. (the ddlSizes values come from a MySQL DB)
[Code]...
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Jun 19, 2011
Is there a way to populate the value in a dropdown? I am using the following command:
ComboBox1.Items.Add(DropDownData)
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May 15, 2009
Is there any way to get the index of the changed item? I couldn't find any examples.
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Feb 4, 2010
I execute some code for current on binding source when selectedIndexChanged.Problem is it throws an error when its executed on closing the form. I can wrap in a try catch... but what would the proper way to handle this be?
Select Case TabControl_Lanes.SelectedTab.Name
Case tp_create_Lanes.Name
depotName = CStr(M8DepotsBindingSource.Current("depotName"))
depotID = CInt(M8DepotsBindingSource.Current("depotID"))
End Select
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Jul 1, 2009
Here is my code for programming a program that reads from a file called RESORT.TXT
Containing the text:
Barb Allen
604 777 1234
[code].....
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Jun 6, 2009
I have datagridview with XSD as the binding source (i configured it with the smart tags). After build, the dgv change its columnIndex which surely result error of my code.
For example
columnIndex(0) = idEmployee (dataGridViewTextBoxColumn)
columnIndex(1) = name (dataGridViewTextBoxColumn)
columnIndex(2) = status (dataGridViewCheckBoxColumn)
suddenly, the columnIndex(2) moved into columnIndex(0)
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Oct 13, 2009
doing dropdown list selected index changed. I wan to select an item in dropdown list and display in textbox but I got more than 1 textboxes. Is the style sheet (.css) going to hard code by our own. how do I go about starting with it as I am a beginnner using visual studio.
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Nov 18, 2010
i have problem for the drop down list in the grid view, it not fire the select index changed. I bind the data for the drop down list when the row databound. But when i select the data, it not fire the select index changed. Another drop down list which hard code the item list fired the select index changed. Below is the code behind and the front end code.
<ItemTemplate>
<asp:DropDownList ID="ddlItem" runat="server" Width="80%" AutoPostBack="true" OnSelectedIndexChanged="ddlPrice_SelectedIndexChanged"></asp:DropDownList>
</ItemTemplate>
[Code]....
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Feb 15, 2012
I have 1 Table Called "Menu" there are some textboxes and a combobox. I want to fill data in the Textbox called "Menu_Rate" on Selection of combobox selected item & coressponding rate of the Menu shoud be displayed in the textbox.
This is my Code
con.ConnectionString = "Data Source=localhost;Integrated Security=true;Initial Catalog=Restaurant"
cmd.CommandText = "select Menu_Rate from Menu where Menu_Name='" & cbMenu.SelectedItem & "'"
[Code].....
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Mar 20, 2011
In vb.net using Data Reader while selecting an value in combobox should display an selected value record from the database into textbox.
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May 22, 2012
Notice that everytime the winform first loads, it will trigger 2 comboboxes ( each tabs each comboboxes ) selected index changed event from,
trying to find possible way to stop combobox selected index changed from winform first load, only trigger combobox selected index changed event after selecting the specific tab,
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Aug 11, 2009
I have a combox which is droplist dropdown.
It has : Item1,Item2,Item3....
When i use :
cob1.selectedindex =1 then it worked.
BUT when I use : cob1.selectedtext= "Item2" or cob1.selecteditem="Item2"
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Mar 29, 2011
PictureBox1.Image = My.Resources.ResourceManager.GetObject(z)
PictureBox1.Visible = True
My.Application.DoEvents()
I've just added a load more image files, bringing the total up to 108.When the program reaches this point, (above) it fails with a 'Can't find File' error.I've tried many times to reload the image files, set all their 'Build action' to 'Embedded Resource' but I'm not at all sure it's doing it. I get an error message saying 'Corrupt .resources file'. but I've opened all the files in Paint Shop Pro without a problem.I'd be surprised if there's an upper limit to the number of image files I can put in the resources file, but not as few as 108 surely ! Most of the image files are between 100 - 350 Kb but 16 are about 1,250 Kb?
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Dec 5, 2011
When I have changed the name of a table field name none of my combo boxes or grid views work properly. The TableAdapter still refers to the original name. Is there an easy way to make the change propergate through the program or do I have recreate all my TableAdapters.
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Apr 30, 2012
Trying to input a high setpoint, low setpoint, a % load, and number of compressors, then calculate the temp that all compressors are off. Then build a datagridview with the staging of compressors from all off to all on for each compressor up to 10 compressors.I am trying to insert headers from 1 to 10 compressors (Variable) with the text "Comp1", "Comp2", etc....Two rows with header. I am trying to use an array with index number to insert the text, but that is where my problem happens."Index was out of range".Here is my code
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim i As Integer, num1, num2, num3, num4, alloff As Single, stg As Single
TextBox1.Focus()[code].....
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Nov 17, 2011
I have a parent page and child page, both aspx. All is working, but now I would like to close child page, if user leaves child popup page and goes back to parent page and clicks on something else like page index of Gridview. I CANNOT close popup child page if user goes to another app, or some other location, I only want to close if something on parent page is changed.
I have the PageIndexChange Event set up for other purposes, I would just like to add some functionality, perhaps a script manager to close the child popup page if the Gridview index is changed, java or another way which ever works best.I think I might also need to check if the child page is even open.
[Code]...
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Jun 24, 2009
i have comboxes on which m usin following list of events
1) enter
2) leave
3)selected index change
all other thing is working correct except tab once focus is on combobox cursor remains there only even if i press tab (while debugging ) have checked tab index they are properly assigned
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Jan 25, 2010
when the user clicks on the add button another form launches, which enables the user to add student info such as name, address, course, start date and end date, this information is then written to class when the ok button on that form is clicked, and then displays the data on the initial form in data grid. the user can add multiple entries and they are all displayed on the intial form and a the data grid is populatedwhen any of the rows in the displayed grid is selected, and the update button is clicked then the same form launches as the previous one and but this time its in the update mode and pre populates the form with the inital values.
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Jan 20, 2011
I'm Making a Simple syntax highlighter and I'm Doing the highlighting in the text Changed event of a RTB and for obvious reasons I can't re highlight the whole document each time someone presses a key so i highlight one line each time the text changes. But this creates a Problem. If someone pastes code into the RichTextBox It only highlights the last Line. So is there a way to get if the user typed the text in with his keyboard or pasted it from the clipboard in the text Changed event?
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Apr 10, 2010
I have one webusercontrol for Datepicker. When I am using this control in content pages it works fine. I have many controls in content page (textbox, label, etc.). All controls are inside a table. I have placed usercontrol inside <td>. When I click on an image, the calendar control is showing. But that time this calender control pushes all other controls (textbox, label, etc.). I have set the z-index at a higher value, but still it's not working.
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Nov 18, 2011
I have a question, how to count how many times the text has changed in label.text ??
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Nov 2, 2010
I have a small requirement and that is as follows: I am calling a stored procedure and based on the results from the stored procedure, i want to display the data into textboxes. I am using DataSet and DataAdapter for the same. Can anyone help me. My code is as follows:
Dim sqlStripCmd As New SqlCommand("prcAdt_mwo_strip_det_sel", connection.conn)
sqlStripCmd.CommandType = CommandType.StoredProcedure
sqlStripCmd.Parameters.Add("@strip_no", SqlDbType.Char, 3).Value = txtMwoStpNo.Text
[code]....
I am getting the data and am able to display it into a datagrid, but how do i put it into textboxes.
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May 1, 2010
If I want to populate 3 text boxes with information such as name, quantity on hand, and price from the selection of a combo box. Is there some all around code where I can get the information from the text file to VB .net ? Ive heard use arrays, then I heard arr file and none of these are seeming to work yet can some one please help me.
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May 5, 2012
I changed my Username on my computer from i.e. "xxxxxx x xxxxx" to "Dennis"
VB 2008 during a compile gave me the following error: Error reading icon 'C:Usersxxxxxx x xxxxxAppDataRoamingMicrosoftVBExpress9.0VSProjectApplication.ico' -- The system cannot find the path specified.
The file "VSProjectApplication.ico" is in 'C:UsersDennisAppDataRoamingMicrosoftVBExpress9.0'
Somewhere in the VB2008 "configuration" files I believe that I need to manually change the old path to the new path.
I found the old path in the ".suo" file. The ".suo" file is not a text file. How can I edit the .suo file, save it so that it will work?
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Jan 20, 2010
on my Form I have a DataViewGrid and some textboxes with a save button (they are filled with additional data of the selected row).Save is disabled first, when I change something in the textboxes the save button is enabled.When the user changes a gow in the grid, I want to ask before changing the grid row, if he wants to save (if the button is enabled).I am using RowEnter but this is too late, then the selected row already changed (and my textboxes already got new data)...What event can I use to ask if I should save stuff before the user changes a row?Something like BeforeRowChanging with a chance to cancel changing the row?
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Sep 2, 2009
I have a data entry form with many text boxes/combo boxes/controls. I want to change their bgcolor everytime the user makes a change so they are aware of what changes they have made before commiting.
My plan is to store the original value in the tag and comapre in the validated event.
I don't won't to write the same code everytime I need a control to behave that way. I've never written a customcontrol before.
how to achieve this by probably subclassing the control and reuse the code regardless of the type of control it is?
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Jun 4, 2011
Is there a way to check if the user has changed the value of a textbox?I try to acces a variable in one of my methods to compare against the value but I can not seem to be able to access it?
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Jan 13, 2012
-> MS Visual Studio 2010 (vb.net)
-> ODBC Connection
I made an account manager where i can store all my accounts and I want it more protected, how can I changed the displayed text in my "colPassword" in datagridview? Just like in textbox the PasswordChar, please give me sample code :)
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Jun 11, 2009
I have an number of text boxes and comboboxes on different forms. I have textchanged events which trigger a msgbox if the user enters invalid data(i.e. the number they enter is to big or to small). Is their a simple way to make the program not call the textchanged event when the form is loaded and the boxes get their initial value? Second is their a way to make the textchanged only be triggered when the user enters data not when the program clears the boxes?
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