Web Forms :: Read The Selected Value Of A User Control's DropDownList?
Feb 26, 2011
I have a survey form, survey.aspx, that looks for information about 3 different people (hiking guides) who are all contained in a single DropDownList. Instead of repeating the list over and over, I figured I'd put them all into a single user control, GuideList.ascx, shown here.
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The form has 3 instances of this User Control. Here’s what the first one looks like:
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In trying to access the value the user chooses from the DropDownList, I have created the following code
in GuideList.ascx.cs
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In Survey.aspx.vb, I have the following, that often blows up because it doesn’t like G1:
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I have tried using GuideList1 and GetGuide and GuideList1.GetGuide and GuideList1.G1 and all sorts of variations, but cannot seem to figure out what I'm missing to access the value of the DropDownList.
I need to create a user control which will be loaded according to the selected value of a dropdownlist. The Dropdownlist is not the part of Control. I want to pass the value of selected value of dropdonwlist to my user control and the user control will load according to the Value. For not postback it work fine. But when the page is postback, that is when i select a item form dorpdownlist, the user control is not loaded.
I have a user control that has some drop down lists. These DDLs are used by the user to filter their product search on my search page. A button is used to post the form and get the results of the product search. Those results are displayed on the results page, which also has the search filter user control on it. I'd like the results page to have the values of the DDLs be preserved from the search page. Example: user selected color of red and size of large on the search page. When the results page is displayed, I'd like the selected color to be red for the color DDL and the size to be large for the size DDL. How can I do this?
I several instances of a webcontrol on my page. The codefile can't see the drop down list's Text property so I am using the FindControl. I have had this working, but only if I specify which 'instance' of the webcontrol I want to read. Due to the fact the webcontrol is repeated 6 times on the page, I want to put this through the loop. This is the working version:
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Now, I have tried to loop through all web controls. My code (C#)
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The value of ddl.Text and ddl.SelectedIndex is always null.
on the form i have one dropdown and search button. Accroding to selected value of dropdownlist, on pressing search button user will see results in gridview.now in after the result is shown and user selects say page 2 then results are shown of page 2. But then if i select new dropdownlist value and press search, it shows result but directly goes to page 2(last time's page selected) instead of showing page 1....
This must be something not very difficult but I am pretty new in C# and have a problem to resolve.
I have tree dropdownlist controls. One of the control values are dates. When client selects all three drop downs then I am passing values to SQL table. Everything works but one. Date value shows 1900-01-01 instead of selected value in SQL table. I am not passing date value correctly but can't figure out how to do it.
I have a Data Bound DropDownList and a Panel in a step of the CreateUserWizard. I would like to make the panel visible based on the selected value of the DropDownList.
Here is my code that is not working. Any help identifying what I missed is appreciated. (Yes Post Back is enabled on the DropDownList.
I have created a user control that contains two asp calendar controls. I need to add this user control twice on the same asp page, let's say for Check in date and Check out date. Since the two are conflicting to each other when I add it twice statically, I now dynamically add them on button click so that each time only one control is loaded. The problem is, when I select a date on a calendar, it seems that the selection event is not happening at all. Of course, I am not getting any date.
I have a function on page load which will work based on dropdown selected value. and I am using this dropdown in a user control. So getting problem because the dropdown value is not loaded yet before Page Load. How Can I do that using those control still.
Here is my code below.
public partial class GradeEntry : System.Web.UI.Page { StudentManager studentManager = null; CourseManager courseManagerObj = null; GradeManager gradeManager = null;
In the below example i cant get the value of "4" to appear in the rendered page. The output from below compiles and executes just fine but all three of the values shown are "0".
Here's a short snippet: (hopefully I'm formatting this correctly)
After this, the text box continues to work correctly, but the _state member does not pick up the posted back values and instead just sticks to the declared value. I've checked the raw posted values in the Request object, and the new value for the list's UniqueID is there, but _state doesn't pick it up.
I want to use a dropdownlist control so that a user can select a value. My problem is, the text value can be very large. Is there any way to make the text to appear on more than one line? Or is there any AJAX or jquery solutions? I can use a gridview with a checkbox but my client really wants a dropdownlist.
I have two pages manager and user both have drop downs asÂ
Week, Months and Years.
User have to enter some data week wise for each months and Manager have to approve that.
To Approve manager select months and week from dropdown on his own page and then navigate to User page.
How does I should bind the drop down so that if manager select 1st week from it's page and goes to view link of user then in drop down of user selected value shold be the same as selected by Manager on his own page.
I have a composite control that returns a different control depending on a property value. The works however I can't seem to set the value of a textbox or the selected item in a dropdown list. Code does not produce error. What am i missing here??
I dynamically load user controls from a default page but when a postback fires within the user controls I can’t get the selected user control to reload. Hard to explain so I will try to show you what is going on.
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When I enter my name and click the “Answer” button the page reloads back to the original state with no user control loaded. Why is the “Hello.ascx” user control not loaded with “Lable1” populated with the information for the click event from the code behind event?
I have a web user control (ascx) that exposes an "ID" property. What I want to do is set this property when the SelectedIndexChanged event fires in a gridview in the containing page. However, I can't seem to do it.... Here's my code:
how can I know that the user already selected a file in the upload control, basically I need something like an event when the uploadfile control already have the filename, since I want to upload inmediately without having a second button that the user would need to click so the program can do the SavAs, I want to do it automatially after the user selected the file with the upload control.
I am having a problem with disabling DropDownList based on the chice of 1st DropDownList, there is no post back occuring, and it is a template based web app here is the current code:
what is happening now is page is blank and if I remove the above code everything shows, where I am going wrong. here is the plain and final javascript code which worked:
