Im using a web form that contains a button(having id=btnSubmit) dropdownlist(having id='ddlDynamic') and a panel which has a dynamicpopulateextender that makes use of the fllg webservice method
[code]....
Maybe the question has already be posted, but I didn't find it. I have in my web page two controls: a dropdownlist and a listbox My goal is to fill the listbox with values from my database depending on what I have selected in my dropdownlist. I wouldlike to use the CascadingDropDown component for that. Is that possible? (I tried on my own and I get this error message
Exception Details: System.InvalidCastException: Unable to cast object of type 'System.Web.UI.WebControls.ListBox' to type 'System.Web.UI.WebControls.DropDownList'. I think it's when i tried to fill the listbox with this function:
[Code]....
I am using AntiXss library 4.0 for encoding text before displaying on the asp page.
<asp:Label Text="text" runat="server" ID="lblTest" />
<asp:ListBox runat="server" ID="lsbTest">
</asp:ListBox>
This is the asp code. In the PageLoad I am writing
lblTest.Text = Encoder.HtmlEncode("test & test");
lsbTest.Items.Add(new ListItem(Encoder.HtmlEncode("test & test"), Encoder.HtmlEncode("test & test")));
Here, when the text in the label is rendered, it shows & as &, but in the case of Listbox, & is rendered as &. But, I want this to be rendered as & even in listbox. How to do this?
Add and Remove Textbox to ListBox Items in JavaScript and than How to store each list box items to array list
without server postback how to store Textbox to ListBox Items in JavaScript and than How to store each list box items to array list
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
View 2 RepliesTwo ListBox Items Compare and Distinct Values Insert Into Third ListBox
View 1 RepliesHow 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;
}
}
No use, no value coming in to label.
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?
This code will display the selected value from the listbox. E.g. if I sellect Item 1 I will get the following output: You have selected Item 1.
Label1.Text = "You have selected " + DropDownList1.SelectedValue + "<br />";
But if I don't select anything and click on Submit button, I will get: You have selected
What would I need to make it display "You have not selected anything. select at least 1 item."
UPDATE: I am using ASP.NET WebForms.
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 am display the item like this
<%=Html.ListBox("emp",(SelectList)ViewData["emp"] })%>
how to get the selected text from it..
i formcollection fc["emp"] iam gettin the option values
25
26
27
how to get the text...
how to modify so that I can get the selected value into the textbox from this listbox selection.
[Code]....
i want to make one value always selected in listbox.....so that user doesnt go without selecting any...that is one remain always selected state
View 3 RepliesI 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()
Can i get the selected index,selected value , selected text using javascript of ajax combobox control. if yes send me the sample code.
View 7 RepliesHow to get all items from Listbox. i need to load all item from Listbox to my database. how to get collection of item and how to save it into databse.
View 3 Repliesif any body select listbox then
item=item1
if nobody select list box
item=no
how to do it
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.
private void PopulateListBox2()
{
List<string> subjectList = new List<string>();
subjectList.Add("Maths");
subjectList.Add("Science");
ListBox1.DataSource = subjectList;
ListBox1.DataBind();
}
Even it will work fine, if the values are unique. But in my scenario, the values are same; only key varies. The following works
private void PopulateListBox5()
{
Dictionary<string, string> resultDictionary = new Dictionary<string, string>();
resultDictionary.Add("Maths", "Lijo1");
resultDictionary.Add("Science", "Lijo2");
ListBox1.DataValueField = "Value";
ListBox1.DataTextField = "Key";
ListBox1.DataSource = resultDictionary;
ListBox1.DataBind();
}
The following code has the problem......................
How to get selected value form Listbox
View 6 RepliesI 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 two ASP.NET ListBoxex in a usercontrol.
databinding event fires once. i am sure and i did trace.
but listbox always returns first value !
it is strange for me.
and i don't know how to fix it.
[code]....
I try to set selected values in html.listbox.
I retun in my model multiSelectList:
model.SelectedDepartments = dto.Departments;
model.DepartmentsItems = new MultiSelectList(
_DepartmentRepository.GetAll(),
"Id", "IdentityNumber",
new int[] { 2 });
return model;
In html page i have these tags:
<label for="dto_Departments"><%= Html.GlobalResource("DiagnosticGroup", "DiagnosticGroup.Departments")%></label>
<%= Html.ListBox("dto.Departments", Model.DepartmentsItems, new { id = "dto_Departments" })%>
When I'm debugging program MultiSelectList contains selected second item in list.
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.
[Code]....
regarding this scenario..
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.