I would like someone to explain how I can pass a drop down list from the presentation layer to the controller using the Model View Controller Design Pattern from Microsoft in order to bind enum values to it?
View 2 RepliesI want to add the below values from Enum to drop down list
<option value="0">-- Select --</option>
<option value="AC">Active</option>
<option value="IN">InActive</option>
<option value="PC">Pending Closure</option>
I have a dropdown list with hard coded values:
<asp:ListItem Text="One Day Shoots" Value="1" />
<asp:ListItem Text="Multi-day Shoots" Value="2" />
I want to use this to insert and edit values from a db. For example when adding a record the user selects 'One Day Shoots' and 1 gets inserted into the database. Then if the user goes to edit the page since the value in the db is 1 then the 'One Day Shoots' is selected.
One way I considered accomplishing this was by using a hidden feild - when the user selects something in the dropdown list the field is updated with the value, then when the user actually adds the record the value in the feild is submitted. I'm pretty sure this would work but is there a better way?
I am populating a page with controls reading properties of a class using reflection. If the property type is 'String' I will add a text-box. If the property type is enum I am adding a dropdownlist. Now I have to populate the dropdown options with enums. How can this be done?
Both the enum definition class(Assignment) and the class(classOne) using which I am populating the page with controls are in the same Namespace(MySolution.Data). While looping through classOne properties when the property name is 'SkillLevel' I will have to go to assignment class get the members of enum SkillLevelEnum and populate the dropdown.
Same needs to be done for other dropdowns also.
My Code:
namespace MySolution.Data
{
public class classOne : MyAdapter
{
private string _Model;
[code]....
I Have the gridview control with 2 dropdown list and 2 text boxes,When the textbox chnaged event happen 1 row will create and the dropdown back to initial values( its not retaining the selected values),I am binding the control after text changed method,Is there any properties needs to be set or any other way we can retain the values in postbacks?
View 4 RepliesI have a BLL where in I am getting all the data from a table. Now I want to populate a dropdown with one of the field in this BLL.
ddlstatus1.SelectedValue = dt.Rows(0).Item("StatusCode") and this is not working.
I tried ddlstatus1.SelectedIndex = dt.Rows(0).Item("StatusCode") too but this is throwing an error that string cannot be converted to Integer.
I've a dropdown list for selecting countries. As there are lot of countries it's very tedious to add each country like this
drpdwncountry.Items.Add("India");
drpdwncountry.Items.Add("USA");
drpdwncountry.Items.Add("Russia"); etc
is there any other way to add list of countries ?
I have a small issue binding the values into a dropdown using LINQ in ASP.NET code-behind.
var clientquer = from i in Entity.New_Bank select i;
//var q = (from s in names
// select s).Distinct();
// var getlendername = (from db in mortgageentity.New_Lender group db by db.Bank_Name into t select t.Key).ToList();
if (clientquer.Count() > 0)
{
ddlbankname.DataSource = clientquer.ToList();
ddlbankname.DataValueField = "Bank_ID2";
ddlbankname.DataTextField = "Bank_Name";
ddlbankname.DataBind();
}
It is binding with duplicate values, but I don't want bind duplicate values. I'm trying to solve this by using a group by clause, but it is not working.
I have been facing this problem for a while now, what I exactly want to do is ->
I have a 3- Tier Application. For a table (say Employee) I have following classes in my BLL and DAL
1. Employee.cs (Contains database fields as properties)
2. EmployeeKeys.cs
3. EmployeeFactory.cs (Main BLL which make call to DAL method)
4. EmployeeDAL.cs (The DAL)
Suppose I have 6 columns in Employee table.
I know that the DAL returns List<Employee> to the BLL and then the BLL in turn gives me the Employee fields.
I have no problem accesing it.
But suppose I have a dropdownlist control and wish to bind EmplyeeName and EmployeeId with the Dropdown.
Is there any way that I can implement that my DAL returns a Generic list containing only the two fields required to bind the Dropdown.
In short i want my list to return only 2 columns, not all the 6 like the List<Employee>
How do i implement this???
Do I need to create a custom List<CustomEmployeeData>, if so how can i implement it in the 3 tier application.
Basically i m looking to increase the efficiency by getting less data from database. Am i on the right track????
Is it possible to bind two separated datasources to one dropdown list such that they are both alphabetically sorted and seprated by some sort of line. I know there is a way to insert elemets manually, but I'm not sure of the 2 separate datasources. I've serached this forum and while there were several posts none of them offered any workable solution.
View 5 RepliesI have a formview in which I have a dropdown list that displays a list of owners. In case the list does not have the correct owner for the user I have added functionality for them to add a new owner to the database table that populates the list. I did this by including a textbox and an Insert button in a panel. When the user clicks the new owner insert button I would like to re-databind the dropdown list so that they will see the owner they added and be able to select it.
When I add ddl_owners.databind to my button click code it gives me an error. "Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control."
I don't want to re-databind the entire formview because then it deletes all the information on the form that the user has already keyed in.
I have "Testdtabse" it's consists of the Table like aaa,bbb,ccc,ddd,eee etc.. I want to bind that table names in to My droipdown list box..
View 5 RepliesHow to bind dropdown list in Gridview(without using asp.listitem)
View 4 RepliesIf have the following enum
public enum EmployeeType
{
Manager = 1,
TeamLeader,
Senior,
Junior
}
and i have DropDownList and i want to bind this enum to it .. is it any way to do that ?
I have created an asp.net customizable gridview where user will be able to add and delete data. Now I face some proplem with this gridview. now I want to add a dropdown list (which is dynamically bind with database) inside the grid. I created code and it bind well. when the page is post back previous selected dropdown list value lose and set to selectedIndex=0; For this reason I used if(!page.Ispostback) and put the dropdown binding code inside this. Here I faced a problem. The problem is when I want to add data inside grid the dropdownlist missin bind. How can I overcome this problem? For your kind observation I given entire code below:
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
CellPadding="4" ForeColor="#333333" GridLines="None"
onrowdeleting="GridView1_RowDeleting"
onrowdatabound="GridView1_RowDataBound">
<RowStyle BackColor="#EFF3FB" />
<Columns>
<asp:TemplateField HeaderText="SL">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("RowNumber") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("RowNumber") %>'></asp:TextBox>
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Material">
<ItemTemplate>
<asp:DropDownList ID="drpMaterial" runat="server">
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Quantity">
<ItemTemplate>
<asp:TextBox ID="txtQuantity" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"
ControlToValidate="txtQuantity" ErrorMessage="Required Field Missing">*</asp:RequiredFieldValidator>
</ItemTemplate>
</asp:TemplateField>...............................
I have 3 drop down list boxes - One for month, day and year. I'm trying to get the value of what the user selects on those drop down list boxes. I have dynamically populated my drop down list boxes and I'm trying to output the end value on a label
private int month;
private int day;
private int year;
protected void Page_Load(object sender, EventArgs e)
{
for (month = 0; month <= 12; month++)
{
DropDownList2.Items.Add(month.ToString());
}
for (day = 0; day <= 31; day++)
{
DropDownList3.Items.Add(day.ToString());
}
for (year = DateTime.Now.Year; year <= DateTime.Now.Year + 75; year++)
{
DropDownList4.Items.Add(year.ToString());
}
}
protected void Button4_Click(object sender, EventArgs e)
{
month = ?
day = ?
year = ?
Label7.Text = month + "/" + day + "/" + year;
The problem right now is I can't figure out how to actually retrieve the value the user uses
I have a enum
[Code].....
This I have to bind in my dropdown so how can I achieve this.
How do I create an array of values from a drop down list?
View 2 RepliesI'm stuck with a problem to populate a DropDownList control with values from the database using item field template in read only mode. since I'm new to ASP.NET. Below is the code and the error I'm getting:
'PictureReadOnlyCategories' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentOutOfRangeException: 'PictureReadOnlyCategories' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value
The code for this is :
<asp:SqlDataSource ID="categoriesDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand ="SELECT [CategoryID], [Name] FROM [Categories] WHERE ([UserId] = @UserId)">
<SelectParameters>
[Code]....
i have a enum class and i want get value and description from enum and bind to dropdownlist but i can get name from enum how do this ?
public enum UniqeGroupId{
[Description("x")]
Group = 1,
[Description("b")]
Run = 2,
[Description("c")]
shopping =3
}
i am using a list view to view, insert, update and delete my data for the admin page this admin page made for the news and we have categories for that so i need to use a drop down list for these categories and when the admin choose on of these categories records its value as an ID to the database.
[Code]....
I have googled a lot to find any solution to pass the selected dropdownlist item to another page.
In my controller view, I have a got list of of items:
List<SelectListItem> PackagingService = new List<SelectListItem>();
I have an application as: SelectCommand="SELECT [CategoryID], [Name], [UserId] FROM [Categories] WHERE ([UserId] = @UserId) ORDER BY [Name]">
</asp:SqlDataSource>
Pick a category: <asp:DropDownList ID="categories" runat="server" AutoPostBack="True"
DataSourceID="categoriesDataSource" DataTextField="Name" [code]...
When i take away the <SelectParameters>
<asp:QueryStringParameter Name="CategoryID" QueryStringField="ID" />
</SelectParameters> and ([UserId] = @UserId), the dropdown list control will populate values from the database but when i live those 2, it won't populate any value from the database. When i remove the <asp:QueryStringParameter Name="CategoryID" QueryStringField="ID" />
</SelectParameters>,and live ([UserId] = @UserId), i get the error : Must declare the scalar variable "@UserId".
As I kept my fetched datatables into session and accessing it on another page there I am
wroking on datatable to fetch only distinct values of particular column to assign to dropdown list.
I have created a dynamic dropdownlist. I need to get the selected values from the dynamic list and store it my sql database.
View 5 Replies