I have a datareader "gDatareader", it has 6 rows for field "orderno", is it possible to add all 6 rows info to a dropdownlist box ddlOrders using something like this:
Dim anItem As New ListItem
anItem.Value = s
anItem.Text = s1
anItem.Selected = False
my c# web application populating dropdowns with datas at run time... i.e my web form contains 3 dropdowns and one gridview.. dropdown1 populate with 'pgmtitle' which is fetch from database,when user select one item-pgmtitle from dropdown1,participants(BadgeNo,Name)
of that pgm will be populated in gridview. when user click on the participant badgeno,dropdownlist3 will poputated with recieving officers name.. wen user select one of the recieving officer from dropdown3,his designation is dispalyed in a textbox,and dropdon2
will populated with feedback sentdate... this is my requirement... and my pblm is, when i choose another pgmtilte(say pgmtilte2) from dropdownlist1,previous value associated with(pgmtilte1) appended with dropdown2 and dropdown3.. here is my HTML code:-
[Code]....
I have 3 cascading dropdownlists. Everything works OK EXCEPT whenever I change the selection in the dropdownlist, the old values from the previous selection are added to the new values (specifically DropDownList id=InstructorList and CourseNumberList)
ASPX page,
<asp:AccessDataSource id="CourseNameSource" Runat="Server" DataFile="r:angel_file_storageCourses.mdb" SelectCommand="SELECT DISTINCT CourseField FROM (SELECT Mid(CourseField, 1, 4) AS CourseField FROM Course_Load) ORDER BY CourseField"/>
<select id="example" name="example" multiple="multiple">
</select>
[Code]....
I have a DetailsView on the page and I have made one of the fields a TemplateField. In the EditItemTemplate and InsertItemTemplate I have a DropdownList that is databound to a table in my Sql Server database. I wanted to add an initial value to the DropdownList
namely "- select -" .
I set the AppendDataBoundItems property to true and added the initial value as a ListItem.Markup of the DropdownList
<asp:DropDownList ID="DropDownList_HP" runat="server"
AppendDataBoundItems="True" DataSourceID="SqlDataSource_HP" [code]...
This works fine for new input. The problem is however that the database already has records that were entered through a Windows Application and many of these records has a null value in this field and exceptions are thrown when I tried to open these records
and the system tried to set the SelectedValue of the DropdownList.After some more searching I found this help
http://msdn.microsoft.com/en-us/library/ms366709.aspx
So I changed the ListItem in the DropDownList markup to the following:
<asp:DropDownList ID="DropDownList_RefHospDV4" runat="server"
AppendDataBoundItems="True" DataSourceID="SqlDataSource_RefHosp" [code]...
This now solved the problem of opening a record where the value is null in the database, BUT now the RequiredFieldValidator is not validating anymore to make sure that a databound item is selected for this field and not the initial value "- select -". So basically now it is not checking anymore to see if valid input has been entered for the DropDownList and it accepts "- select -" thus it acts as if the field is not a required field anymore.
In short what is required is that I want to make sure that the user enters a valid selection in the DropDownList, but it must also cater for old records that do not have this field entered yet so that those old records can be opened in the DetailsView .Opening Old records (with null in that field):When these old records are opened in the DetailsView the DropDownlist should show "- select -" when the value in the database is null.
Saving records (old or new records):When saving the record in Insert mode or Update mode the RequiredFieldValidator should show that a valid input is not selected if the DropDownList is still on "- select -".
I would like to display contents of two (or more) tables inside a Repeater control grouped by some Category. I will be getting the data in sepatare DataReaders (not a single joined query). Is there a way to do this without resorting to building DataTables/DataSets ? I am aware of nested repeater techniques, just not sure how to relate the data with DataReaders.
View 6 RepliesIs it possible to get information about post field order in ASP.NET? I need to know whether some field was the last one or not.
I know I can do it through Request.InputStream, but I'm looking for a more high level solution without manually stream parsing.
Generally I'm doing testing of http post sent by my application and there is no practical usage for this in ASP.NET.
I have a dropdownlist whose values are int (actually they are string basically but they can be parsed. they are 1, 2, 3, 4, 5.. etc)
I want to create textboxes acording to the number of dropdownlist selected value. Lets say drop down shows 3 and I wanna create 3 textboxes. how can I do that.
I have a GridView, the first column it's a RadioButton template and the second it's a DropDownList Template, the number of rows depends on the user, I mean they are not static. I'm using the following JS function to get the row selected with the radiobuttons:
[Code]....
With this function I know which RadioButton was selected, now, I would like to get the DropDownList value or text of the selected row, I know I have to loop through every DropDownList to get an array of controls, but since they are something like ctl00_ContentPlaceHolder1_GVProducts_ctl02_DValsDropDown, I just don't know how to achive this through JS.
pull data from 3 databases, same query with the same result set (data can vary) and i want to combine those results in to a single datareader so i can easily dump it to a gridview.
View 2 RepliesI'm building an ASP.NET MVC 2 site where I'm currently implementing an OpenID sign-up form. Unfortunately, I'm foreseeing a possible security bug/vulnerability inside my architecture.
Here's how I want OpenID login to work:
User requests /Account/Login, Controller sends back OpenIDLogin View. User enters their OpenID into the View, then OpenID authorization takes place, and finally the OpenID is returned to the Controller.The Controller checks whether the OpenID is currently in use by a user in the system or not. If it is, the user is logged in to that account. If not, the registration process begins.
And now, the OpenID registration process:
The OpenID identifier, as well as any other information provided by the OpenID provider (such as email address or name), is put into my custom ViewModel and sent to my OpenIDRegistrationForm View.The RegistrationForm View stores the OpenID in a hidden field to make sure that it gets sent back to the Controller.The user fills in the RegistrationForm View and sends it back to the Controller.The Controller creates the user account and puts the OpenID into the database.
The bug that I see within my architecture is that a user could modify the hidden value in the RegistrationForm View. Thus, they could spoof their OpenID! I will make sure to add another round of checking to the final Registration Controller Action to make sure that the OpenID that is provided doesn't exist yet, but there is still a possibility for spoofing. Can my architecture be improved somehow? I don't want this to end badly...
One solution I'm considering is encrypting the OpenID before I send it to the View and then decrypting it when it reaches the Controller. Should I try this?
how to use ASP Required Field Validator with AS.NET DDL the default selected value is 0 ...and the user shall select any value other than 0 so how can i handle that with ASP.NET Validators?
View 2 Repliespopulating the dropdownlist with column name. I have a gridview that has 7 columns . I want to have a textbox search and dropdownfield where user can select column name and type a word in search box and click search so that text for that column name is being search and displayed in grid. how I can fetch just column names from DB and search ?
View 8 Repliesi want use this control for dropdownlist i wrote below code
<asp:DropDownList ID="DDL2" runat="server" CssClass="DPCDDL">
</asp:DropDownList>
<asp:RequiredFieldValidator Display = "Dynamic" ID="RequiredFieldValidator4" runat="server"
ErrorMessage="please select your classification." ControlToValidate="DDL1" CssClass="valid1"></asp:RequiredFieldValidator>
but it didn't work how i can define that users should select one item from DDL?
I have a template field in a Details View which is a dropdown selection of values.While I can get the value of the textfields in the DetailsView by using: DetailsView1.Rows(i).Cells(1).Text.ToStringI don't know how do extract a value from a dropdownlist2 contained in the DetailsView.
View 4 RepliesI have an ASP.NET/C# web project that uses an Entity Data Model and Entity Framework to interact with my database. I also have a DetailsView control that will serve as the control used to insert a new record. The user will need to be able to select from multiple,
cascading dropdownlist controls to determine what parent record this new record will belong to. Here is an example.Say we have an online ordering system with the following hierarchy.
Customers -> Orders -> OrderParts -> Parts
We're going to add a new part to an order, under a customer. Ultimately the orderparts table won't have a reference to a customer, just an order. The order will have the reference to the customer. In the DetailsView for the new orderparts record we will need two cascading dropdownlist controls. One for customer and one for order, since we won't want to view some crazy amount of orders all in one dropdownlist.
However, the customer dropdownlist should not be bound to the detailsview control since there is no field for it. I also don't want to use the AJAX control since I don't want to create a separate web service to provide all of this information to the dropdownlist controls.
I populate two dropdownlist in asp.net. Both are assigned to a required field validator.
The codebehind is as below
[Code]....
the designer code is as below
[Code]....
Now what happens is, when i choose a field from the dropdown and once again when i choose the "-- Select--", the validator appears and then disappears.Where am I going wrong?Why doesnt the validator stay?RegardsHema
I've been struggling with trying to figure out how to do this for about 2 weeks now. I have a DetailsView with several template fields in it. The first field (Unit_Code) is a dropdownlist item where the user would select a Unit based off the Unit_Code's Unit Name. Further down I have a field named (System), system needs to get it's value from the selectedvalue or selectedindex that the user selected in the (Unit_Code) dropdownlist. I have another dropdownlist item (Component) that will need to get the selected value from System to sort on, so once I have the first Unit_Code to System figured out I should be able to figure out the System to Component part seeing as it will basically be doing the same thing.
My aspx page code is below:
[Code]....
I would like the user to select an item from a drop down list. Next to the drop down is a textbox or label control. From the ddl selection I would like to populate the textbox or label from a database with a corresponding field from the database the dropdownlist was populated from. On selectindexchange event I can populate the textbox with the Unique id from the value, but I need to input a different field into the textbox. Can I use some sort of variable to assign the Textbox.Text = ?
View 6 RepliesI hav a gridview in which i display the project name,created date,Start time ,end time ,total hours along with the task id field which is visible=false.
My starttime and endtime format is 2010-10-13 03:00:00,but i want to display these two fields in dropdownlist ie.,only i want to display the HH:MM:SS in dropdown so that when the user changes the time it should be automatically be reflected in the total hours(6:0) field after updating.pls tell me what i have to do to bring the Hours ,minutes and seconds in dropdownlist into the cells of gridview with the value in database ,how to write the code.
i have a gridview which consists of databounds and dropdownlist control. When I press the Add Grid Row Button, it will insert a row. Now my question is, if the user selected an item in dropdownList in the firstrow and the user click the AddGridRowBtn Again which will generate the 2nd row, how would i maintain the selectedItem in the dropdownlist after postback?
Source For Gridview:
[Code]....
Add Row Code
[Code]....
[Code]....
And For Grid Row Created Event
[Code]....
i want to add the particular field in dropdownlist by coding so hows that's possible
View 2 RepliesI have Dropdownlist whose value field and text field are bind at runtime. it has --select-- as first item with a value of '0' and the rest of the values are bind at runtime.
I have given validaton group for both the control and the validator as "g1" and Intialvalue=0
But still the page is posting back even if I select '--select--' option.
[Code]....
my c# web app containing a gridview template field with one column as dropdownlist,drop down list contains 3 items such as disposed,fitted to,battery room,when i click edit button corresponding row is selcted bt dropdown list contain its first value ie disposed instead of actual values in database, i used the following code for retrieving values from dropdown during updation
DropDownList tb3 = (DropDownList )GridView1.Rows[e.RowIndex].FindControl("drpstat")
;
my html code for my gridview is :-
[Code]....
Can you append items to a listbox?
View 13 Replies