I'm try to make a little blog application in ASP.NET MVC3 with C#.I have a BlogEntry Class and Comment Class.
public class BlogEntry {
public int Id { get; set; }
public string Title { get; set; }
public string Body { get; set; }
public List<Comment> Comments { get; set; }
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I have a dropdownlist attached to a cell when edit is selected. I am using the following code to populate the drop down list with the value that is on the row.
dlBU.Items.FindByValue((e.Row.FindControl("lblBU") as Label).Text).Selected = true;
This works famously when I have a value in the cell. It fails when the cell has not yet been populated. Is there an if then clause that if the value of e.Row.findcontrol("lblBU") is null no default value?
I have a list with 2 sorts of items. Items that have actual values (1,2,3,4 etc) and items that are like group headings so all their values are set to 0. If someone decides to select a group heading - which has a value of 0, is it possible to redirect them to my 'Select an item' item which has a value of ""?
If worse comes to worse, I can just reconstruct the entire list, although if possible I'd like to avoid it.
i use a dropdownlist in a page, with its items taken from a mysql database
i also use autopostback property...my problem here is that, every time i selecct an item, the first item in the list gets seelected
I have a master page with three DIV blocks, say div1, div2, div3. I have a Content Web Form which is linked to this master page. From this content form, I want to programatically, write lines in say div2. How to do call this div of the master page? I mean what to write inside the tags to embed text in this div?
View 2 RepliesI have a drop down list control populated with items and some code to take the currently selected item value. The problem is I only get the value of the first item in the list regardless of what item is actually selected. Here is my code to populate the drop down:
protected void displayCreateCategories()
{
StoreDataContext db = new StoreDataContext();
var a = from c in db.Categories
orderby c.Name
select new{catName= c.Name,
catId=c.CategoryID};
ddlCategory.DataSource = a;
ddlCategory.DataTextField = "catName";
ddlCategory.DataValueField = "catId";
ddlCategory.DataBind();
}
To get the value of the currently selected item which in my case is always of type integer I do label1.text=Convert.toInt32(ddlCategory.SelectedValue); I get the selected value, but it is always for the 1st item in the list. I'm pulling my hair out over this.
I have one problem with my shopping cart that I really can't figure out all by myself.I want, if a item already exist in the datatable, the quantity to be updated for that item with the new number instead of creating the same item again.I have done a foreach loop because I think that is where I should start.Notes: MyRow[3] is the column holding the quantity.Code:
[Code]....
//Bengt
Clicking the label of a drop down list, re-sets the selected value to the first item in the list. This has a history of causing data entry problems when users accidently click on the label.
In the below example ddlContactType has a selected value as 'PRIMARY' and whenever i click on the lblContactType Text, the dropdown box Selected value is changing to "Select One" Text.
How to prevent this one. It should be on PRIMARY Only.
<p>
<tr> <td ><asp:Label ID="lblContactType" Font-Bold="true" Text="Contract Type: *" ForeColor= "red" runat="server" AssociatedControlID="ddlContactType"></asp:Label> </td> <td > <asp:DropDownList runat="server" ID="ddlContactType" DataSourceID="SqlDataSource2" AppendDataBoundItems="true"
DataTextField="TYPE" DataValueField="ID" SelectedValue='<%# Bind("CONTACT_TYPE_ID") %>'>
<asp:ListItem Text="Select One" Value="0" Selected="True"></asp:ListItem>.......
I have a requirement in my application that, while saving the application, need to get all the value from drop down list and pass it to the view model. But application should not allow the user to select more than one item from drop down list manually, ie, only one value at a time. My view model is like ...
public class ListManagement
{
public IEnumerable<selectListItem> InactiveProduct { get; set; }
public string[] InactiveProductSelected { get; set; }
public IEnumerable<selectListItem> ActiveProduct { get; set; }
}
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I have a master page which has an unordered list in this way:
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These links are directed to my content pages. I am able to highligt the selected list item on hover and on active.
But I do not understand how I can highlight the selected list item as long as the user is on that specific page/link (current list item). I know that we can specify a seperate body tag and id for each of the content pages and then use CSS to highlight the current list item, but all this code rests already inside a body tag in the master page.
I am having an unordered list like:
<ul style="list-style: square url(Images/rssIconSmall.png)">
<li><h3>All Items</h3></li>
<li>Item1</li>
<li>Item2</li>
<li>Item3</li>
I've put together the following code which generates a dropdownmenu list (values from a database) in a repeater control, then adds a final item. I can make it selected, but I'd like it to appear at the top, rather than the bottom as it does now.
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I am using list view to display the the data but i am getting an error like An item placeholder must be specified on ListView 'ListView1'. Specify an item placeholder by setting a control's ID property to "itemPlaceholder". The item placeholder control must also specify runat="server.Even i have specified the itemplaceholder id but no use still same error.
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I have a web page with paypal. In the page user add items to list then buy it. when user add item to list i block that item in stock until user buy or delete that item.Now my problem is when user add item in the list and then close the broswer from IE close button , the item get blocked. I want to rollback the added items when user close the browser from IE button.
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I am getting error of in Foreach loop
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How to resolve this situation or any other alternative to cum out of this problem.
I have two drop down list on a page. The first one list projects and the second list users. The userlist is populated with an object datasourse that pulls a list of users for the selected Project.Whenever the Project list selection changes the second ddl Userlist always reverts to the first person in the list instead the person that was selected before a new Project was chosen.
View 1 RepliesI have three dropdown lists which perform as cascading lists. #1 sets the filter for #2 and then #2 does the same for #3 (standard stuff). Each dropdown gets its data from queries to separate tables.
My problem is when I pull data from an existing record and assign the data fields to the controls using the datareader the second list will not allow me to assign a value to it.
The dropDownAssetGroup.SelectedValue sets easily to assetGroupID but the dropDownAssetType.SelectedValue won't take the value of it assetTypeID (which does get the correct value), it stays as "". The values in the existing records are contained in the dropdown's items, and were even populated from the same controls.
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I am working on Vs2005 and asp.net 2.0. I have a solution with 4 projects (business object, components, data access, webclient)When I change any existing method or property in Business object or data access, it is not reflecting in the application. I have deleted the existing references to the project and added them after the new build. I always get errors like "method not found or No overload method "It seems like old verion of dll is still there in the reference.
View 7 Repliesi have list of user class but now i have to return it as a list of object, i try to convert it but it gives me error like. can not implicitly convert.
View 4 RepliesI am declaring a list in my class, populating the list in page load and using the list in various methods in this class. But, I get this error at every instance where I use this list in the methods. Error: System.NullReferenceException: Object reference not set to an instance of an object.
public partial class ViewBG1 : HealthServicePage
StringBuilder displayList = new StringBuilder();
I have added a few items in displayList but in my code i need to search for an item in displayList how can i search an item added to displayList.
I have an entity object as model input in my view. Not sure if it's the best approach, but I use the object references to get values from a related object.Let's say I've got a car entity and a manufacturer entity.Here's how it would look in my view
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I've get a nullreferenceexception where the car entitity does not have a reference towards manufacturer. I'd like to output a " " if no manufacturer exists.
I have got a list of person with address object attached to it. When assigning the values to the report, how do I binding
address.address1.value
address.address2.value etc
to the textbox of local report.
i'm dealing with a problem where i manage to get all the related data and put it into an arraylist, after that i also manage to display it in a list box.. but, now i was ask to add 30 minutes to all the data in the list box.. how can i do that?? the code i'm using only allow me to add the last item on the list box, other data it will ignore.
View 3 RepliesThe <li> tags generated by ASP.NET when I programatically add ListItems to my ListBox control do not have ID attributes. Is there any way that I can get them to have IDs so that I can get references to the elements from Javascript?
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