Web Forms :: Get Count Of Selected Items In ListBox Using C#
May 7, 2015how to get selected items count in listbox (but not all items count only selected items count)
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Nov 15, 2010i have asked myself if there is an easy way to check if a ListBox has a maximum of 5 selected items. There must be at least one and at most 5 items selected.Do i need a CustomValidator with server-side validation?
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Jun 25, 2010I am working on a screen where in it has a typical 2 listboxes & 2 buttons(add/remove), so when these buttons are clicked the items have to move from one listbox to another. its all working fine with javascript.but the issue is, I am not able to get the items of the 2nd listbox in the codebehind. I tried with html & asp.net listbox controls. I even tried to access the listbox using Request.Form["ControlName"] - which gives a null value.In the listbox1 the data's are coming from database.The data's choose from listbox1 will be moved to listbox2. And again i have to update this data to one of database table.
View 3 RepliesWeb Forms :: Selected Items In Listbox To Be Seen As Selected
May 17, 2010I'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?
Web Forms :: How To Get All Non Selected Items From Listbox
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Jan 28, 2010I need to know how to loop through all the selected items of a listbox.
View 3 RepliesWeb Forms :: How To Show Multiple Selected Items Of A Listbox
Jun 18, 2010I had used listbox control with multiple selection mode. I stored id with comma delimiter in database.
e.g.
1. List Item One.
2. List Item Two.
3. List Item Three.
4. List Item Four.
5. List Item Five.
6. List Item Six.
Suppose user select item 2, 4 & 6. So I will store it as a 2,4,6 in database. This will work fine.
Now in editing I have to shows selection-bar for item 2, item 4 & item 6. So I had typed below source.
string strData ="2,4,6"
if(strData != null)
{
char[] separator = new char[] { ',' };
string[] strSplitArr = strData.Split(separator);
int x = 0;
for (x = 0; x < strSplitArr.Length; x++)
{
// lstWDef_PurchasesEdit.Items[x].Selected = true;
lstWDef_PurchasesEdit.SelectedValue = strSplitArr[x].ToString();
}
}
But with this statement I got only last item id as a selected item with selectionbar. In our example 2,4,6 only item whoseid is 5 got as a selected item.
if i use
for (x = 0; x < strSplitArr.Length; x++)
{
if (lstWDef_PurchasesEdit.Items[x].Value == strSplitArr[x])
{
lstWDef_PurchasesEdit.Items[x].Selected = true;
}
}
if the selected items are serial like 2,3,4 then it is displaying correctly..
if items are 2,4,6 then it is not selecting the items of listbox properly.
Is anybody guide me how to make item 2, item 4, item 5 as a selected item ?
Web Forms :: Unselect Selected Items In Listbox After SelectedIndexChanged?
Oct 24, 2010i have a listbox LbGeneratedExcelLinks when i click inside of it on an item it download the selected item
here s my code
Protected Sub LbGeneratedExcelLinks_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles LbGeneratedExcelLinks.SelectedIndexChanged
Dim RedirectUrl As String = LbGeneratedExcelLinks.SelectedValue
Response.Redirect(RedirectUrl)
LbGeneratedExcelLinks.SelectedIndex = Nothing
End Sub
problem is if i want to click on another button or other event it keeps showing the dialog open or save file the one i put inside selectedindexChanged
unselect after the selectedindexchanged i think it will solve my problem
Web Forms :: Save ListBox Selected Items To Database
May 7, 2015I have a DropDownList shows the company names and a ListBox shows the products of the company I selected in the DropDownList and I can select many products from ListBox:
in sql I have these tables:
1.company: comp_id,comp_name
2.product: prod_id,prod_name
3.Pro_Comp_details:Pro_Comp_ID,Pro_ID,Comp_ID (bridge table)
In .net I have a page with a button to add to bridge table to add a company and many products to it
this is my code but there is something missing
protected void btn_save_add_Click(object sender, EventArgs e) {
poc.Pro_Comp_ID = Convert.ToInt32(txt_prod_of_compID_add.Text);
int id1 = Convert.ToInt32(String.Format("select Comp_ID from Company where Comp_Name = '{0}'", ddl_choose_companyName.SelectedValue));
int[] id2 = new int[ListBox1.Items.Count];
[Code] ...
Web Forms :: Listbox.Items[0].Selected Always To True / Rebind It In The Codebehind?
Jul 15, 2010I have a ListBox declared like this in my aspx:
[Code]....
And I need to rebind it in the codebehind:
[Code]....
Then I want only the second item in the list to be selected
[Code]....
I don't want the first item to be selected, what do I miss?
Web Forms :: Dynamically Populated Listbox Always Return Selected Items As False?
Mar 10, 2011I have the following code which simply gets data from a table and populates the questions_lb listbox with items. I have a button on the page, which when clicked, should write (on submit) the selected state of each of the items. The code below writes the text values of each of the items fine however it always writes the li.Selected as False even though i have selected items from the list. Note that you can select Multiple items from the list. Does anyone have a clue why its not writing 'True' for an item that is selected on submit?
[Code]....
Listbox - Show Only The First Items As Selected
May 1, 2010I 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......................
Data Controls :: Save Selected Items Of ListBox To Database In Windows Forms Application
Mar 19, 2013i am making use of two listboxes. the data from one listbox is transfered to other listbox on button click, bt teh the data which is selected must be added to the table in the sql server. but it is not storing values it is throwing execption...
private void InsertRecords(StringCollection sc)
{
SqlConnection conn = new SqlConnection("Data Source=ABCD;Integrated Security=True");
StringBuilder sb = new StringBuilder(string.Empty);
[Code].....
Listbox Selected Items Into Textbox Not Working
Dec 22, 2010my 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
C# - Listbox Persisting Multiple Selected Items?
Jul 29, 2010I am persisting the search selection criteria of a listbox onto another page which is called AreasLb. Multiple areas can be selected, I simply want to set the listbox items that the user selected as .Selected = true
I think the below code should work, but it doesn't, with no items in the Listbox being selected.
if (s == "Areas")
{
string[] area = nv[s].Substring(0, (nv[s].Length - 1)).Split(';');
int i = 0;
foreach (ListItem item in AreasLb.Items)
{
foreach (var s1 in area)
{
if (s1 == item.Value)
{
AreasLb.Items[i].Selected = true;
}
continue;
}
i = i + 1;
}
continue;
}
Add Selected CheckBoxList Items To ListBox On Button Click
Jul 14, 2012I added some food items in CHeckBoxList. I want to add selected food item(s) in a ListBox. The Text Property is name of the food and it's value is there Price (Food Price) As soon as I add any food item in a ListBox the total should be displayed.
Whichever code I wrote using it, if i select 1 item then it adds in a ListBox. But If I select another food item then Previous food item also added because it is selected. I will select some food items then it will be adding in the ListBox, I will check the total, if the total is greater than my budget then i can remove some food items.
AJAX :: Save Selected ListBox Items To Database Using JQuery?
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MVC :: How To Determine Selected Items In Multi-select Listbox After Http Post
Mar 24, 2011I'm creating a search form that will include textbox and multi-select listboxes. I figured out how to load the listboxes but not how to grab those values on the postback in the controller method. Here's my simplified code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.ComponentModel.DataAnnotations;
[code]...
Data Controls :: Filter SqlDataSource Based On Selected Items From ListBox?
Aug 29, 2013sql 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.
Data Controls :: How To Remove Selected Items From ListBox In Windows Application
Aug 10, 2012I have 2 ListBoxes. 1st SelectionMode is Multiple. Once I select many options from 1st ListBox I can copy it in ListBox2 but i Unable to remove it.
Code :
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
For i = 0 To ListBox1.SelectedItems.Count - 1
ListBox2.Items.Add(ListBox1.SelectedItems(i).ToString())
' ListBox1.Items.Remove(ListBox1.SelectedItems(i).ToString()) it is not removing.
Next
End Sub
Forms Data Controls :: Get The Selected Item From The Listbox In The Selected Index Changed Event
Feb 28, 2011How 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.
Getting Data From ListBox / Read The Selected Field From The Listbox?
Mar 14, 2011how 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 RepliesWeb Forms :: Get Count Of Number Of Items In A Column Which Is Separated By Comma?
Sep 27, 2012In a column, have many items separated by comma or whitespace. How to get count of the number of items that is separated by comma or whitespace.
For example, test column has data like 123456, 543213, 678895
How to count as 3
Web Forms :: How To Highlight The ListBox Items
Jan 26, 2010I 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.