I have a list of Key/Value pairs. basically its a List where ViewModel is a custom class of the form
public class ViewModel
{
public String Key { get; set; }
public String Value { get; set; }
}
In the View i would need to render Label and Textbox for Key and Value respectively.Im trying to use Html.DisplayFor() however it goes with model and only displays the properties of the model and not the list.I would like to achieve something of the format
Its working just fine, except for the fact, that dropdownlist is populated but selected value is not set.Im using the following code for a dropdownlist in my template:
and its not setting the selected property. I put the code below to SuperModelView, that calls <%: Html.DisplayFor To populate the template and it works just fine.
UPDATE: I`ve tried to investigate the issue, but something is totally wrong. I can share the whole code, not sure where to put it, here or attach with separate files.
@Darin, what other parts should I share, or just share the whole model view and controller files?
I'm designing my own custom control that contains a .NET dropdownlist. What I'm wondering is if it is possible to populate my dropdownlist with listitems placed in a placeholder? For example:
This doesn't work because the DropDownList control only allows ListItems as child controls. But, I want to do something similar to this so when the user includes my control on a page, they can do something like this:
Is it possible to select values from a List, where the items contain in a different list aswell?for example;
[Code]....
What I need are all the items from the first list "Items", where the string contains something from the second list "List".So I need something which returns the first 3 items (which contain the term "Item") from the first list.
In my app I have a criteria builder section that's built using jquery and is pitched back to the controller in a form post and picked up as IList by the model binder as suggested in Phil's post here: http://haacked.com/archive/2008/10/23/model-binding-to-a-list.aspx A really simple way that I'm persisting the criteria across posts is re-delivering the IList object to the view. I'm using a DisplayFor() template for this object, but because it's a list I need to know the index # inside of the template.
I am trying to implement an html definition list in which each <dt> is the <header> in the accordion, and <content> is the <dd>. No matter how I write this out I can't get it to be valid markup because of the position of the <div>s inside the definition list where divs aren't allowed.
I also tried using a unordered list but had the same validation issues. I would really like to use the accordian, but not if I have to sacrifice valid semantic markup on my page.
I am trying to get a simple multi-page program to run correctly. I have everything set up, except for the "remove" function. When I try to remove an item from the list box nothing happens. Insted of trying to explain it I will show you the code...
ave a webpage that maintains a list of items. Each item is displayed as a simple short text string and has a int/string data value associated with it. At the moment I am displaying the list as a common separated string. I can generate the present string very simply from the result of a linq query:
string displayString=""; foreach (var i in linqResult) displayString = displayString + ", " + i.Name; displayString = displayString.SubString(2);
However, I want to modify the page so that the user can remove any item (name) from the displayed list
I am trying to add the value from a textbox which is also in the formview into the dropdownlist as a list item. I currently have this code for it: Protected Sub Formview1_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles FormView1.PreRender Dim dropdown As DropDownList Dim listvalue As TextBox dropdown = FormView1.FindControl("dropdownlist5") listvalue = FormView1.FindControl("textbox1") dropdown.Items.Add(New ListItem(listvalue.Text, listvalue.Text)) End Sub
This code works and adds the new item to the dropdownlist if I have no SelectedValue set for my dropdownlist. However when I set the selectedValue I get the error message:
"'DropDownList5' has a SelectedValue which is invalid because it does not exist in the list of items.
Parameter name: value"
This is the bit I dont understand because the value does now exist in the list of items as it was added in from the textbox value. Does it try to do the selectedValue before adding my list item? If so how can I add the list item first, or do I need to set the selectedValue in the code after adding the list item?
Another niggling issule. I am trying to remove all the databound items from my listview but it doesn't work. I am trying to remove the items as i have used the delete command button (alongside with the updateand edit)
I have an object, that has many properties but the only two to worry about are:
myobject.ID which is an int myobject.Names which is a HashSet
Then I have a List of those objects that looks something similar to this:
List<myobject>
I use Linq to get a some of the data into a repeater, but I'm not sure how to get the list of Names and how often they show up.
Want to use Linq to avoid having to loop through the data.
As my tags should show, this is an ASP.NET solution using C#.
Some clarification: Lets say I have just three items in my list: Item 1 has John, Fred, Jack in its names. Item 2 has John, Fred, Joe in its names. Item 3 has John in its names.
I am trying to return the following: John - 3 Fred - 2 Jack - 1 Joe - 1
Also, as a note I am familiar with having to write my own comparer for my object, I'm just missing the 'how to' for the overall solution in my thoughts.
I have a List in which I select users from db each time a sql query runs with certain value and selects one user in the time thus I cannot limit identical users in sql.
Here is my code which insert listbox items table and create record.
protected void Button1_Click(object sender, EventArgs e) { ListItem li = new ListItem(); System.Data.OleDb.OleDbConnection conn = new System.Data.OleDb.OleDbConnection(); conn.ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;" + @"Data source= C:Ruchitaweb" + @"WebSite527afcergonomic.mdb"; conn.Open(); for (int i = 0; i < ListBox1.Items.Count; i++) { li.Text = ListBox1.Items[i].Text; } OleDbCommand cmd = new OleDbCommand("insert into record(recorditem) values('" + li.Text + "')", conn); cmd.ExecuteNonQuery(); conn.Close(); }
this is inserting in diffrent rows but i want this in one row with (,)so i can parse it and get it back which items user selected. and i also want to show messge box that show the record number.
var myList = new List<string> { "red", "blue", "green" }; Regex r = new Regex("\b(" + string.Join("|", myList.ToArray()) + ")\b"); MatchCollection m = r.Matches("Alfred has a red and blue tie and blue pants.");
Is there a way to derive a List<string> of the "found" items ("red", "blue", "blue")?
in one page i have list box on one button click i am showing on popup which is another aspx pagein that page showing one grid with check box now i want that when user select check boxes and click on add button selected items should gets added to list box on page when i click save button on page(not popup) all the records in that list box should gets saved to data base how to do this
