Forms Data Controls :: DropDownList Inside GridView Inside UpdatePanel SelectedIndexChanged Event Not Firing?

Aug 16, 2010

I have an UpdatePanel with a GridView. This GridView has a template column that is a DropDownList. The problem is that the SelectedIndexChanged event does not fire for the DropDownList. Here is the code:

[Code]....

The codebehind:

[Code]....

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With ref. to this post, [URL]

I have placed a dropdown list in Gridview footer, now i want to access the dropdown selected indeex changed event as below. But i'm not able to access the event.

protected void ddlCatg_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList ddlCategories = grvExpenses.FooterRow.FindControl("ddlCatg") as DropDownList;
DropDownList ddlExpenseSubCategories = grvExpenses.FooterRow.FindControl("ddlSubCatg") as DropDownList;
ddlExpenseSubCategories.Items.Clear();

[CODE]..

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I have 1dropdownlist and 1 textbox in my page

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protected void DDLclass_SIC(object sender, EventArgs e)
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Data Controls :: DropDownList SelectedIndexChanged Event Not Firing

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I take drop down list control ,from below code i bind data into drop down list from database...

public void load() {
try {
string sCon = gv.constr;
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con.Open();
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[Code] ...

I used to done select index change event on  drop down list bt it's not working... I want select index value of drop down list item into textbox....wat i do?

protected void drpOrg_SelectedIndexChanged(object sender, EventArgs e){
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[Code] ....

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Dropdownlist Selectedindexchanged Event Inside A Formview?

Apr 25, 2010

I have a dropdownlist inside a formview and I'm trying to do something on the selectedindexchanged event. but I'm getting the following error:

It looks like it can't find the dropdownlist because it is inside the formview. How can I find the event?- if there is such a thing.

Server Error in '/WebSite4' Application. Compilation Error
Description:

An error occurred during the compilation of a resource required to service this request.

review the following specific error details and modify your source code appropriately. Compiler Error Message: BC30506: Handles clause requires a WithEvents variable defined in the containing type or one of its base types.

Source Error:

[Code]....

Line 13:End If
Line 14:End Sub
Line 15:Protected Sub ddlDept_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ddlDept.SelectedIndexChanged
Line 16: Dim ComDropDownList As DropDownList = CType(FormView1.FindControl("ddlCommune"), DropDownList)
Line 17:

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[code]...

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I have a checkbox, textbox and requiredfieldvalidator inside the updatepanel. Once user checks selects
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I have one more textbox, requiredfieldvalidator, validationgroup and Linkbutton outside updatepanel.

Strange thing is Checkbox checked event not firing in some cases,

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[Code]....

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protected void GV3_RowDataBound(object sender, GridViewRowEventArgs e)
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[Code]...

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i have two nested gridview inside an update panel. there is a button called btnPhoneEdit inside the child grid view. when the button gets clicked, it do cause partial post back as expected but it fails to invoke btnPhoneEdit_Click.

here is how my grid view looks like and how i add my custom data source to both parent and child grid view.
[Code]....

[Code]....

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Mar 2, 2011

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[Code]....

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below is code:

<asp:GridView ID="GridView1" runat="server" CssClass="DGridView1"
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I have a gridview that is inside a column of another gridview and I want to modalpopup a window when selectindexchanged in the nested gridview. I am having troubles getting the datakeyname of the selected row in the nested grid; here is the HTML:

[Code]....

and I am not sure how do I get the row value in this function:

[Code]....

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I have a checkbox placed inside a gridview:

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like ddl.items.insert(0,'xyz');

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I'm trying to load a gridview based on selection from dropdownlist. When i run the program, it displays empty gridview. How to solve this?

Name of dropdownlist: CatCode

Code behind:

Private Sub BindProdGrid()
Dim conString As String = ConfigurationManager.ConnectionStrings("SY_InventoryConnectionString").ConnectionString
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[Code] ....

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[code]....

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Actually I'm working on someone else code so I can't really change the structure of his page excepted if it's really necessary.

The code of the page is heavy, so I've summarized the problem in a small project and the page behaves the same way too.

Basically I have a GridView which I bind to a DataSet. According to those data, I sometimes need to add, at the end of a row, a "Details" button (a LinkButton).

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Let's add to this that the columns number of the first GridView is variable, those LinkButton need to be added dynamically.

The first GridView is generated without any problem and when my mouse is over one of the LinkButton, I can see that the link is something like "javascript:__doPostBack('dataGridView$ctl02$lnkDetail','')". When I click on this link and debug step by step : Page_Init, Page_Load, OnPrerender, RowDataBound but no RowCommand, and I don't know why!

In the exemple, I've explicitly set the EnableViewState to true from what I've read here and there, but nothing's changed.

[code]...

And the code of my .aspx :

[Code]....

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AJAX :: Handling SelectedIndexChanged From DataList Inside UpdatePanel...

Feb 26, 2010

i ahve a DataList inside an UpdatePanel like this

[Code]....

Nothing is fired?Is this Possible

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Forms Data Controls :: Populating DropDownList Inside A ListView Inside A FormView

Jan 16, 2010

I have the following (abbreviated) code:

<asp:FormView ID="FormView1" runat="server" DataKeyNames="ItemID" DataSourceID="LinqDataSource1">
<EditItemTemplate>
<asp:DropDownList ID="ddlCategory" runat="server" SelectedValue='<%# Eval("Category") %>'
DataSource="<%# GetCategories() %>" DataTextField="Text" DataValueField="Value" />
</EditItemTemplate>
<ItemTemplate>
<asp:ListView ID="lvParticipants" runat="server" DataSource='<%# Eval("Participants") %>' >
<InsertItemTemplate>
<asp:DropDownList ID="ddlCountry" runat="server" SelectedValue='<%# Eval("Country") %>'
DataSource="<%# GetCountries() %>" DataTextField="Text" DataValueField="Value" />
</InsertItemTemplate>
</asp:ListView>
<ItemTemplate>
</asp:FormView>

When the FormView is in Edit mode, ddlCategory is populated as expected by calling GetCategories(), which returns a List of categories. However, when the ListView is in Insert mode, ddlCountry is empty. I put a break point in GetCountries(), but it never gets called. If I change the name of the method, I get an error. So it recognizes the method at compile time, but does not call it at run time. I'm guessing this is an embedded binding issue of some kind, but I'm hoping someone can save me a lot of time by pointing out the solution.

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Forms Data Controls :: Showing Linq Result Values Inside Dropdownlist Inside Listview

Jun 22, 2010

I have a listview that is showing its result by using a linq query. The linq query goes like this.

[Code]....

* db.Varer: Varer is a table that contains basic product information like proudct name, product nr. etc. ** a.fk_kategori_id == CatParamId : I'm just saying limit the result according to the Category ID (a.fk_kategori_id). The category id is coming from a dropdownlist (CatParamID) *** Join: Besides the Varer (Product) table I also have another table, Sizes. This Sizes table contains 6 columns (ID_Sizes (int) primary key and the columns: OneSize, S, M, L, XL, XXL all are bit (true or false)). There is a relationship between Varer table and Sizes table. It says that I can only insert a value into the "fk_sizes_id - column" of varer table if that value already exists as primary key within the Sizes table. **** I'm starting by picking basic product values like productId, ProductName etc from the Varer (a) table ***** Then I'm picking the corresponding Sizes values (onesize, s, m, ...) from the Sizes table. Now within my ListView I'm showing the above result by using Eval, like this.

[Code]....

And this works perfectly, but now comes the thing that is causing me trouble. I have the below drop down list (still within the ListView ItemTemplate):

[Code]....

I want this drop down list to be populated with only those of the "linq query's Sizes table result" that are true. By "Sizes table result" I mean these

[Code]....

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Oct 15, 2012

i have a gridview in which i have a 3 column serial no, particular , amount .in particular column i have a feild tution fees . and its shows it amount any integer value( like 5000). now i have a dropdown list outside the grid n if i selct any value from that dropdown list . the tution fees will be change on the event of selecting value of drop down list.( say if i select the value 10 then it tution fee will be 4500 , means 10% discount on tution fees) how it will be done?

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