I am new to MVC, I have a form in which selection of one dropdown should reload another dropdown. On selection of the dropdown, I use a jquery post to get the data and my viewstate is reloaded with new data, but I am not sure how to set the newly loaded viewdata to load the dropdown again.
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I am a complete newcomer to ASP.NET. However in the few weeks I have been playing with it I have got pretty far and have mastered things like stored procedures, gridviews, formviews and templates.I have a dropdown box which is populated from SQLDataSource1
I have a second dropdown box which is populated from SQLDataSource2, but i need the query feeding this to be dependent on what was selected in the first dropdown box. I assumed it would simply be a case of modifying the select statement on SQLDataSource2 using the SelectedIndexChanged event on the first DropDownList to update the second SQL source, but I cannot work out for the life of me how to do it. Pretty much all of the code I have is ASP.
can i do this purely in ASP rather than using VB behind the scenes or do I need to use VB? I am pretty comfortable with vb.net but one of the other issues I have is referencing an ASP object from VB... so for instance if I had a text box in ASP, how can I read or change the properties of this object from VB?
FYI I am using Visual Studio 2010 and SQL/Server
I am using the following code to bind BusinessID as the DataValueField of the ddlIndustry dropdown. What I want to do is save the selected ID to a different table (Company). I am doing this with ddlIndustry.SelectedValue. For some reason, the first value is always saved (1), and not the selected value.
[code]....
I am trying to display results based on both dropdown list selection.If a user selects Jan from 1st ddl and 2013 from 2ns ddl then results of Jan 2013 will be displayed to the user,everything works fine,I wanted to confirm the query that I have used is correct or not.
Store Procedure
Create proc usp_monthwisedata
@month int,
@year int
[Code].....
My concerns are:
1.Is the way of writing the Sp is correct to achieve the result.
2.Is it correct to set the onselectedindexchanged of both the ddls to 1 method i.e onselectedindexchanged="DropDownList1_SelectedIndexChanged"
3.Over all Performance wise is it correct.
I have two dropdown linked with sqldatasources.When I select item in ddl1 then on the basis of selection ddl2 is being loaded.Is there any possiblity that if I select ddl2 then ddl1 will also load on the basis of selection?
View 3 RepliesI have drop down selection box as follow...
1 - Car
2 - Plane
3 - Train.
Now, based on user selection say, 'Car', I want to display Help text associated with selection on page. Help text description - 1000 characters. Now, how do I fetch Help Text Description from? should I store in Session scope or Application Scope or fetch from Database based on drop down selection.
i have an asp.net application, i want to incorporate init the functionality of having the user select from a dropdown list a name, select multiple files (images), upload those images to a physical path on a server, save the image paths to a database on the said server.
If the user fails to select a name from the dropdown list then the user would receive an alert message stating that a name must be selected.
In addition once the files have been successfully saved to the server's physical location, then and only then should the path be uploaded to a table in the database.
I'm having trouble figuring out how to display a gridview based on the selection of a drop down list. I manually entered the drop down list items, but in the configure/choose data source I don't understand how you make a relationship between each list item and the corresponding database table you want to show.
View 7 Repliesi want to see the sales in the grid view based on the month selected from drop down list. Ex: when I select June 2010 from the ddl box, the sales for that month are correctly displayed in the grid view. I go to page 4 to look at some sales there and then switch the month to August 2010 to see sales for that month instead. Here is the problem. When I switch the month, it show August 2010 sales, but stays in page 4 instead of going back/resetting back to page 1 of August 2010 sales.
How do I reset the grid view page back to the first page of August 2010 sales?
I am fairly new to ASP. If I have missed an imp. detail in this post, let me know and I will get that info. out there.
I have a gridview where i have two fields. one is product and second is sub category.
I need to do 2 things.
1. I need to populate the two combos from the database. But depending what is selected in dropdown 1 this will determine what needs to be populated in drop down 2?
how can i achieve this?
I have a category and a subcategory column in a Jqgrid. I have enabled inline editing, both category and subcategory are dropdownlists columns (edittype:'select'). I need to filter the subcategory list based on the selected category. I wonder how can I acheive this functionlity? I tried the below event but its not working for me
afterEditCell: function(rowid, celname, value, iRow, iCol) {
//to do here
}
the above event doesn't get fired. my all column are editable
I have four cascading dropdown control and now I want to load a gird data based on the value selected on that dropdown. This should be done by using ajax concepts..
View 1 Replieshow to populate a dropdown list box based on selected value in another.
dropdown list box? Say, for example, the first dropdown is a list of car manufactures. When a user selected a manufacture from that dropdown list, the second dropdown would list would automatically gets populated with all the car models for that manufacture.
i have a dropdown with month names if the user has data for the month tht is selected then gridview displays the rows with day nos as per the month but if the gridview has no data for the same the dropdown or gridview via some event should call a insert procedure to insert data into the table for tht month with daynos ad rebind the gridview witht the rows just created
View 6 RepliesI have dropdown1 that has some items in it.I also have dropdown2 that gets populated from a database based on whatever is selected from dropdown1.Dropdown2 has its first item as "Make Selection" and then appends the data from the db based on what was selected in dropdown1.
Now when I select an item from dropdown1 it puts the correct data in dropdown2 but as soon as I select another item from dropdown1 it appends those values into dropdown2. How can I remove the values from dropdown2 after a new item is selected from dropdown1?
in index page I have dropdown list.. I need to get the values from database based on this dropdown list and need to show that values in the grid in same page index page..
View 9 Repliesnow i am using listview control with datapaging its working fine at the page load binding the data. when iam selecting in the dropdown value according to that value i want to bind listview and datapaging how?
View 3 RepliesI haev a dropdownlist box on my page.. with A B C D E Feach pages have difernt images once If I select A I need display one Image like B I need to display other image/table on the page..
View 1 RepliesI have a dropdown list which has items bound to it using sql datasource.
In the database i have the numeric values corresponding to each item.
Now there are many such dropdown list's and on selection of each item i want to form a 14 digit numeric code,which i need to use further for some more functionality.
How can i convert a selected item from a dropdownlist to a numeric digit??or how can i bind the items in the dropdownlist to a database having numeric value for each item?
E.g if i select 'WT' from dropdown list the corresponding value for it in the database table is 39 so on form submit i want '39' to be formed in codebehind. likewise on selection of all items from different dropdown list the digit formed using codebehind should be '15487523568955'
the formview in data tools in asp.net by default gives textbox in insert mode template.
how to change this to textarea or dropdown selection list?
I have a web page which has a DropDownList & image with links... The issue is when SelectedIndex of DropDownList is changed the image should change according to some condition and also href & link text should change accordingly.. some thing like
say :
I have 3 items in DropDownList : 1> Google 2>Yahoo 3> Orkut
Image1(Google Logo) Visit Google(Text link)
when user selects Yahoo : The Image1 should change( to Yahoo Logo) and Text should change( to Visit Yahoo)
is there a way to cancel the current selection for a cascadingdropdown list ? For example, user changes selection, I present user with option to cancel selection and if he chooses to cancel, then the old value should be reverted.
View 9 RepliesI am having an dropdownlistbox and fileupload control.After selecting a file from upload control,if i change the dropdownlist value(postback occurs) then the file path i choosen earlier is shown empty.
here is my code:
<asp:Label ID="lblupload" runat="server" Text="Upload a file: "></asp:Label>
<asp:FileUpload ID="upload" runat="server" Width="320" Height="18" BorderColor="Gray" BorderWidth="1" />
<asp:Label ID="Perimission" runat="server" Text="Perimission"></asp:Label>
<asp:DropDownList ID="ddlState" runat="server" OnSelectedIndexChanged="ddlState_SelectedIndexChanged" AutoPostBack="true" >
<asp:ListItem Text="Everybody" Value="Everybody"></asp:ListItem>
<asp:ListItem Text="Students" Value="Students"></asp:ListItem>
<asp:ListItem Text="Selected Users" Value="Selected Users"></asp:ListItem>
</asp:DropDownList>
I need getting a drop down list selection to populate a calendar. The user selects a vehicle from the dropdownlist and based on that selection, the calendar needs to populate a link with drivers names on whatever days the vehicle is rented out for.
View 14 RepliesI am using AJAX extension in visual studio 2005. First of all i am created a Web custom control which contains Dropdown list. I have also set AutoPostBack="true" for getting its SelectionEventChange event.
I am added this web control on another page inside a UpdatePanel.(i added dynamically on another page).
MyControl = (MyControl) LoadControl("MyControl.ascx")
My problem is when i select the values from dropdown it refersh my whole update panel.
<Triggers>
<asp:AsyncPostBackTrigger ControlID="DropDownList1" EventName="SelectedIndexChanged" />
