How to get the selected item from the listbox in the selected index changed event. I tried: Label1.Text = ListBox1.SelectedItem.Text; It is giving me object set to null reference.
foreach (ListItem item in ListBox1.Items) { if (item.Selected) { //lblResults.Text += item.Text + " "; Label1.Text = item.Text; } }
I'm having trouble getting selected items in a listbox to be seen as selected. On my aspx page there's a listbox and a button:
[Code]....
But if I change my condition to Not selected, the string does build, with every item in the list. So the Sub is reached, the items and their text and values are seen, but user selection of items doesn't work. What am I missing?
how I can read the selected field from the listbox?I have MSAccess table attached to the app.I can get to the properties, but I don't know which property gets me the data of the specific field.In VB it would be "listbox1.Column(x)", where 'x' represents the column number in the listbox1.I am using Microsoft Visual Web Developer 2010 Express
I've got a list box that's populated by the user, I want to enter the selected items into an array, however I need both the indexes they have in the listbox as a whole, as well as their values.
For example, let's say that there is a listbox with 3 values and the user has selected just the first 2.
I would like to do a "for each" statement on only the selected items, so I would need their listbox indexes, the selected items indexes and their textual values.
I've tried multiple paths but all seem to just give me the textual representation of the selected item, but getting the correct indexes seems to be a problem for me.
I want to display whatever i select in the listbox into a label.
I thought it was as simple as this but nothing seems appear.
Protected Sub lbxInstalledPrograms_SelectionIndexChanged(By Val sender As _ Object, ByVal e As EventArgs) Handles _ lbxInstalledPrograms.SelectedIndexChanged lblDisplayDetails.Text = lbxInstalledPrograms.SelectedItem.ToString()
I am developing a Webpage that gives the user selection criterial before running a report. There is a asp.net ListBox that I need to get the selected values from. It is obviously a multi select listbox.
I need to pass the selected values as a comma separated string to a parameter used in an SQL query of the ObjectDataSource for the report. I was hoping some how to get the selected items, and load their value into a string array and then use the join( stringArray , "," ) to get the selected values into a string to send as a parameter to my objectdatasource but I cant seem to figure this out.. Ideally if code worked my way I would want to do something like this: Declare StringArray for each selected item in Mylistbox Add selected value to StringArray Set parameter = join( StringArray , "," ) Obviously this is what I need syntax for.. I pretty much just need to know how to get a string array or all selected values.
I have a list box which is populated using a dictioanry. When I iterate throught the selected items using the following code, it always show only the first items as selected - even if the first item is not selected. Have you ever encountered this scenario? This problem occurs when I use dictionary for binding. On the other hand a generic list works fine.
I ran into a road block and hope someone has the quick answer. Searched the forum found several solutions but none worked for me.
Here's the issue:
Got a listbox set with Multiple selection. I want to get all the Selected values of that list box to use those values to later display into an email. Tried several ways but no luck and just got frustrated.
I have a user control which has a listbox. I am trying to get the selected value of the listbox from the main page which is having the user control. I tried but I am not getting the selected value..., where i am able to get the properties like mode, color, font etc. Below is the code which i tried where i am getting the empty string into x.
I have a listbox, i am binding it to a datatable with DataTextField and DataValueField. This is in WebForm (not windows).And the first item in ListBox is "Select All" and the rest are from DataTable.SelectAll is selected by default.1) If i select any other item...(as it is multiselect) the "select all" item should be unselected.2) If i select 5 items in ListBox and after that i select "Select All" items then all the other items except "Select All" item should be unselected.
I have a textbox that searches the listbox below it and selects the text that I types in the textbox. Now although the item is selected in the listbox I have to scroll to the end to see if the item is selected ornot IS there a way that I can make the list box scroll to the selected item?
The ListBox is in the EditItemTemplate of a FormView inside of an UpdatePanel. jQuery is possible but it would be great if there would be an asp.net serverside(or Ajax) way to achieve this because i don't want to use more client scripts than really needed(and this is only a nice to have).
my vb.net will not use listbox1.selecteditems it always comes up with a blue line underneath even though when i search online everyone is using this. my goal is to get the selected items and list them in a textbox
Protected Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim li As ListItem For Each li In ListBox1.Items If li.Selected Then TextBox1.Text &= li.Text & vbCrLf End If UpdatePanel2.Update() Next End Sub End Class
