I have used the dropdownlist box. Now i want to refresh that dropdownlist every time i select the item from it.I have written a event handler function for that.Also made autopostback = true. But still it is not working.
What my code does is that the EntityDataSource has a Where Parameter tied to the first DropDownList and it populates the second DropDownList, but when the first DDL changes, the EntityDataSource doesn't change the values of the second DDL. Worth mentioning this is inside a ModalPopupExtender which is inside an UpdatePanel. Maybe there is a way in just putting all the data in the second DropDownList and filter it depending on the value of the first one... or something like that... so there's no need of refreshing the data.
i have a drop down list with data in it... how do i refresh it when the user add data into the databast or delete data? i tired adding data in.. the data was stored in the database but was not showed on the drop down list... how do i refresh the values in the database?
i have a webpage that loads data into a gridview and refreshes the gridview every few seconds. I do this via a asp:Timer which runs a C# function every few seconds to requery the database and databind the gridview.
I also have a few dropdown lists to filter data from the gridview. These dropdown lists get their data from the same dataset as the gridview (e.g. if the gridview shows the stats of all apples being plucked from trees, then the list may contain e.g. all distinct apple types). How i refresh these dropdown lists is again to requery the dataset and reset the selected index to be one selected at time of refresh. So this causes a problem where the timer is up when the dropdown list is open - the index on the dropdown list is selected and refreshes the gridview, the dropdown list also refreshes with the current selected index and closes.
So the question i have how to disable my timer refresh from going off while the dropdown lists are active - or maybe how do i do this better?
This is a basic question: i am updating a DropDownList by deleting the relevant items, the problems is that items are removed but the DropDownList still present different values (it doesn't refresh itself)
I have the webpage with below code. There exists dropdownlist within the gridview and updatepanel. I hope that the dropdownlistddlAltProduct refresh only some portion of data in div when OnSelectedIndexChanged. Not the whole page as now as you see autopostback='true'. How to change the current situations???
I have a problem when I try to pass in paramaters for a report in my report viewer. I have set up the ObjectDataSource and set the paramaters for 3 text boxes that are on the page. The only way I have found to set the paramaters for the report is the user must fill in the paramaters and hit the refresh button on the Report Viewer toolbar ,but I would like to have the user click a asp.net button insted. Is there anyway to call the refresh method from codebehind?
I have a coupon print page that records the amount and data to a table, retrieves the Identity as the CouponID #, and then displays it onto the Coupon so the log displays who printed the coupon and for what amount.I also record if and when the coupon was redeemed. This preventa someone from using the same coupon twiceHowever on the Print Coupon page, If a person hits the refresh button, it records another line and prints another coupon for the same amount but adds another line and CouponID
I have a table on my page. I need to scroll down a little to get to that table. In that table i have som data that i edit and save to database. When the save is done i need to refresh the page( Response.Redirect(Request.RawUrl )) so it loads the new data to that table. When the refresh is done the page is on top again so that i need to scroll down again to see the table. This makes it very unusable for the user.
How can i refresh the page without it going back to top again? I tryed wrapping an updatepanel around the table but it didnt
I have a gridview with 3 nested dropdownlists in one cell on edit like this:To get the exact fields when the user clicks on edit I used the following code(yes it's messy)
The BLLOnderhoud is a class and the getReserveInfo is used to get the Model - Brand(merk) Information.Since the dropdownlists are nested in the gridview I can't call them directly and they can't call any of my functions.And this is the problem, when I change the dropdownfield Model the Auto field wich is the last dropdown(in the picture is a typo) should be binded like in the following code:
But the dropdownlist onDataBound event can't call any of my functions that are in my class.So my question is how can the onDataBound event of the second dropbox trigger a function? The only thing that the function has to do is to bind the 3rd dropdownlist
what i m trying is i hav two dropdownlists inside the gridview... namely say ddonsiteoffsite and ddhours... now what i want is if the selectedtext of ddonsiteoffsite is "onsite" the ddhours should b disabled... i tried the code snippet but ... its not disabling the ddhours... can someone help me please..
I have two dropdownlists and trying to populate second dropdownlist based on selection of item of another(first) dropdownlist.First dropdownlist contain class number and according to the class number the second dropdownlist should show the subjects from database. I am using c# with ASP.NET and MSSQL server. waiting for the reply.
I am making an application that deals with vehicles. I need two DropDownLists:
Makes: All Vehicle Makes Models: Models that belong to the selected value of the Make DropDownList
How is this done in MVC2? My Idea: Do I use an ajax call when my first list is selected and then pull back the Models to bind to the Model DDL? How would model binding come into play that way? UPDATE I posted what I ended up doing as an answer. It is super simple and works great. You can use a get too if you feel so inclined, but you have to specify that you want to like so... return Json(citiesList, JsonRequestBehavior.AllowGet);
I have 2 dropdownlist, one is to dropdown department, and another dropdown staffnames. the secong dropdownlist will based on the selection of department as each department has different staffs i have 2 tables department and staff in my database , in my department table i have departmentid as PK and departmentname, in my staff table i have staffname and departmentid as FK. So my ques is how am i going to populate staffname in the dropdownlist according to the selection of department.