I have a ListBox which is bound to a list of data items.
Now I want the user to be able to filter the items shown in the ListBox based on the search expression typed in the TextBox. For each character typed in the TextBox, the ListBox items should change to show only the items matching the search expression.
sql data source is easily take one filter expression from dropdown list and filter the data show in gridview.
How can i filter sql data source through listbox because in list box user can pass multi selected value in that sql data source stop working.
So i currently filter the listbox with some javascript i have found. What it does is going to the item i type on the textbox. It will not filter the listbox so it will contain the specific matches. I was reading for autocomplete but i don't seem to find this 2 way usage. I was also reading this article: [URL] But i'm completely lost on how i can implement it.
View 17 Repliesmy 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
I'm moving itmes from one ASP.NET ListBox control to another ListBox control from client-side. It works on the client-side but when I tried to count items in destination ListBox on the server-side, it's always nothing. Below, is the jQuery code used to add/remove items from ListBox control.
[Code].....
I know that we can add/remove items from ListBox from server-side. But I'd like to get it done from client-side. Why there isn't anything in the destination ListBox when counting the items from the code-behind, eventhough the items are added from the client-side already.
i have 10 list boxes in my aspx page for all 10 list boxes same function is using for some buttons i want to add listbox data to grid can you java script code shown below
f[code]....
i tried a javascript above code to move items between listbox using html input button problem when i trying to save listbox.items.count giving 0 can anyone tell me why this happening and also when post back occurs listbox items lost.
II am working website which is going to be accessed by a motorola device(scanner) but the functionality needs to be same a normal/usual website. On one of the page I have a textbox -> productID and listbox which can have multiple productID. Now when the focus is on textbox and it scans the productID ,the scanner returns a tab,now after this happens I need to add the textbox value to the listbox and empty the textbox and set focus on the textbox. I also should be able to delete a productId from the list.How can I achieve this using Jquery?
<table style=" width:220px;">
<tr>
<td style=" width:120px;">cost</td>
<td style=" width:100px;"><asp:TextBox ID="txt_cost" runat="server"></asp:TextBox></td>
</tr>
<tr>
<td style=" width:120px;">Product ID</td>
<td style=" width:100px;"><asp:TextBox ID="txt_ProdID" runat="server"></asp:TextBox></td>
</tr>
<tr>
<td style=" width:120px;">List of ProductID</td>
<td style=" width:100px;"><asp:ListBox ID="lst_ProductId" runat="server"></asp:ListBox> </td>
</tr>
<tr>
<td style=" width:120px;"><asp:Button ID="btn_Update" runat="server" Text="Update" /></td>
<td style=" width:100px;"><asp:Button ID="btn_Remove" runat="server" Text="Remove" /></td>
</tr>
</table>
So I have a ListView (assignmentsListView) in an UpdatePanel, being filtered by a DropDownList in the same UpdatePanel. The DropDownList has a list of persons in it and uses autopostback, and the ListView shows the tasks those persons are assigned to.
I am trying to use code similar to this:
[code]....
When I first load the page, the DropDownList shows the first person in the list, and the ListView correctly shows that persons tasks.
If I then select a person who I know has zero tasks, I get an error at the RegisterPostBackControl() method, saying the passed-in control cannot be null.
When debugging, at the RegisterPostBackControl method, it shows that the ListView Items collection has >0 elements in it (the number of elements matches the person selected before the current person).
I have code when I click on button I want show the value of selected List item in textbox but following code gisplay the item in alert,,
<html><script>function getValue(){ var x=document.getElementById("sel");for(var i =0; i < x.options.length; i++){if(x.options[i].selected ==true){ alert(x.options[i].value);}}}</script></head><body><selectmultiple="multiple"id="sel"><optionvalue="volvo">Volvo</option><optionvalue="saab">Saab</option><optionvalue="opel">Opel</option><optionvalue="audi">Audi</option></select><inputtype="button"value="Get Value"onclick="getValue()"/></body></html>
I am "trying" to switch my form from SqlDataSources to ADO.NET data sources. So I have a DAL setup, and ObjectDataSources in my form referencing these DALs. These data sources are bound to the form's objects. So far so good. In the InsertItem Template of one of the form's FormViews I have a list box that I am trying to populate with a value pair (ID, TechName) from a database table and I get the following error:
"Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control." Apparently, one of the two workarounds involves programmatically loading the listbox. The code below shows one of my attempts, resulting in the above mentioned error:
Code:
Protected Sub TestFillDefaultValueInFormView()
Dim vInspectorList As DropDownList
If (FormViewHydInspection.CurrentMode = FormViewMode.Insert) And Not IsPostBack Then
vInspectorList = DirectCast(FormViewHydInspection.FindControl("DDlstInspBy"), DropDownList)
vInspectorList.Items.Clear()
Dim vInspectorDA As New DataSetHydrantsTableAdapters.TechnicianTableAdapter()
Dim vInspectors As DataSetHydrants.TechnicianDataTable = vInspectorDA.GetTechnician()
Dim vInspRow As DataSetHydrants.TechnicianRow
Dim vInspectorHT As New Hashtable
vInspectorHT.Add("0", "Select Technician")
For Each vInspRow In vInspectors
If vInspRow.TechID <> 0 Then
vInspectorHT.Add(vInspRow.TechID.ToString, vInspRow.TechName)
End If
Next
vInspectorList.DataSource = vInspectorHT
vInspectorList.DataTextField = "value"
vInspectorList.DataValueField = "key"
vInspectorList.DataBind()
End If
End Sub
I tried populating the listbox directly using the Listbox.Items.add() method (which is the way I have it now so I could continue solving other problems, and it works!) but I could not find a way to add a value pair. I did try:
vInspectorList.DataTextField = "Select Technician"
vInspectorList.DataValueField = "0"
but that left a listbox without any data.
I have a GridView with a load of data in, there is an ID associated to the data that I would not like to be visible to the users. All worked fine when all the cells were visible, but as soon as I change the ID DataBound column to false, when I try to access the item in code I get "" instead of it's actual value (that worked perfectly when it was visible).
View 2 Replies I have a simple problem. What i wish to do is to read the data bound item [Code]....
and if the output = 0 then rather than display the 0 I would like to display a message such as Not Available.
Can anyone provide a solution?
I have a databound dropdownlist hooked up to a table and the query has the returned items show up in order. I also have some default items that are _DataBound like so:
[Code]....
What I'd like to do is add some more items, but have these new items show up in order with the other items displayed from the query. How do I accomplish this?
How do you avoid duplicate bound items in this scenario: There's a databound control on a page (a DropDownList in this case, though I don't think it matters). It has AppendDataBoundItems set to "true". Somewhere in the code, a DataSource is set and DataBind is called. So this control is bound explicitly. You have a bunch of other things to bind on the page, so you call Page.DataBind.
Your databound control now has duplicate items in it. It was (1) bound explicitly, then (2) Page.DataBind bound it again. Since AppendDataBoundItems was true, the second bind appends to the first, and you end up with double the items. A couple limitations: The explicit call to DataBind on the control is done through some centralized code, and would be painful to change. i really need to bind the rest of the page in aggregate (via Page.Databind()) because there's too many other databound elements to do it individually without writing a ton of individual calls.
I need a method like... Page.DataBindExceptIfTheyHaveAlreadyBeenBoundDuh()
I have two databound listboxes. I am able to move items between them using add and remove buttons using for loops. However I have no idea how to commit the items back to the db when the user finally clicks on the Save button on the form.
View 5 Replies I have a DDL bound to a sqlDataSource, and I want to insert an item in the first position. I tried using this code in the onDatabound event:
Protected Sub ddl_onDataBound(ByVal sender As Object, ByVal e As EventArgs) Handles ddl.DataBound
ddl.Items.Insert(0, "None")
End Sub
But when I load the page, the item "None" is inserted twice at the beginning of the DDL? So I see something like:
None
None
item1
item2
Do I need to put the items.insert somewhere else, like on the pageLoad, to avoid it being executed twice, or am I doing something really wrong?
I want to created a messaging system and to display the messages. I want to use a gridview. My problem is how can I display the new messages in BOLD rows and the readed messages in normal text.
View 7 Replieshave an annoying problem. i'm trying to update single items in a databound listview. but when i click the update button it gives me the cannot insert NULL value. it doesnt seem to read anything from the textboxes which i have databound from the database. even though text is clearly shown...
i have setup my update statement and parameters, it uses the Update command name and ItemUpdating event. i catch the data from the textboxes by using e.ItemIndex and use the text assigned to the parameters in a SqlCommand.
The thing i'm aiming for too is that when an item is updated it stays on the page where the item was updated, (i was using response.redirect before but it went against my aim since the whole page reloaded)
how to get the items in listbox one by one
e.g : in my listbox i have items (roll no's)
s1
s2
s3
s4
s5
etc...
how to get the items on by one
I have XML file with the following structure:
<rule ID="16" Attribute="Savvy" Parametr="">
<body>
<term Operation="AND">
<IF_ID>8</IF_ID>
<Ratio>=</Ratio>
<IF_Value>impossible</IF_Value>
[code]...
Controller:
public ActionResult Create(int id)
{
ViewData["ProductId"] = _repository.getLaborId(id);
ViewData["OperationOrderList"] = _repository.List<OperationOrder>();
return View();
}
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Create(OperationOrder operationOrder,OperationProduct operationProduct)
{
try
{
foreach (var R in ViewData["ProductId"]as SelectList)
{
_repository.Create<OperationProduct> (operationProduct);
}
_repository.Create<OperationOrder > (operationOrder);
return RedirectToAction("Index");
}
catch
{
return View();
}
}
View:
<%: Html.ListBox("ProductId")%>
Q:How can I save all itmes from listbox to another table, Have I use "foreach" to save ?
if checkbox is clicked i need to select all items in the listbox in asp.net...
how to show the items all selected in listbox once the 'selectall' checkbox is clicked
I have this C# code.j = myAccountDataset.Tables["AccountsTables"].Rows.Count;
for (i = 0; i <= (j - 1); i++ )
{
listAccountList.Items.Add(myAccountDataset.Tables[0].Rows[i][1]);
[code]...
This has got to be more simple than I'm making it. I want to generate a listbox with years for the values. It needs to be dynamic. It needs to list from 17 years ago to 25 years ago. This is what I have so far, I get the correct number of items in the listbox, but I don't get the correct value. They are all "1985".
<%
Dim y As Integer
Dim NextTime As Date = Now
Dim bday_yr As New ListItem()
y = 0
For y = 17 To 25
NextTime = DateAdd(DateInterval.Year, -y, System.DateTime.Now)
bday_yr.Value = NextTime.Year
bday_yr.Text = NextTime.Year
BirthYear.Items.Add(bday_yr)
Next
%>
<asp:DropDownList ID="BirthYear" runat="server">
</asp:DropDownList>
I am moving an app from Silverlight back to ASP.NET. (Don't ask!) I really liked the ability to highlight ListBox items as the user moved the mouse over the items. I have been Bing'ing all morning and cannot seem to find any way to do this in ASP.NET with an ASP:ListBox. I tried setting the onmouseover event for the list items themselves. But that did nothing.
[Code]....
I then tried setting onmouseover event for the list itself. I can get the event, but I don't know how to determine which item I am over. I only seem to have the selectedIndex. If I am just moving the mouse, I have no selectedIndex.
