Data Controls :: Unable To Find CheckBox In DataList On Button Click Event
Dec 5, 2012
i have datalist and on button click event i check the checkbox is checked or notfor this my code is
<asp:DataList runat="server" ID="dlstproductsize">
<ItemTemplate>
<input type="checkbox" value="<%#eval("size_id")%>" id="chksize" runat="server" /> Â Â <%#Eval("name")%>
</ItemTemplate>
</asp:DataList>
If chkallowsize.Checked = True Then
For Each item In dlstproductsize.Items
If (CType(item.FindControl("chksize"), HtmlInputCheckBox)).Checked = True Then
ocommon.ProductMapingInsert(uniq_id.Text, CType(item.FindControl("chksize"), HtmlInputCheckBox).Value)
End If
Next
End If
i get the error like object reference not set to the object
Protected Sub DataList1_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DataListItemEventArgs) Handles DataList1.ItemDataBound lblshippingoutside.Visible = Dim lblshippingoutside As Label = CType(e.Item.FindControl("lblshippingoutside"), Label)False End Sub
Throws an exception .
Object reference not set to an instance of an object.
I am adding some dynamic image buttons to a form in my code behind (vb.net) and added a click event handler, but it never fires. Also when I click on a button the page posts back and everything below my update panel disappears.
I have few textboxes on a page which are loaded dynamically on change of text in dropdownlist. The user enters values in these textboxes and clicks on a addnewitem button. In the code behind I want to capture the values entered in these textboxes. But I get the value as empty.
On Pageload mthd there is nothing which is referencing to createdynamiccontrols method.Then I have
[Code]....
Firstly i am getting object reference not set to an instance of an object when the createchildcontrols method is called the second time and also if I dont have the createdynamiccontrols method in additem click event, controls are no longer tehre...
i am developing an ASP.NET website, i have a datalist that contains an item template with hyperlink in it, i want to access the hyperlink clicked i tried "SelectedIndexChanged" event, i don't know what to do. here is the code <asp:DataList ID="DataList1" runat="server" DataKeyField="album_id"
I've got a multiline textbox inside the ItemTemplate of my Datalist, which is set to visible=false.I've got a button right above it, with the click of that button, all I want to do is make it visibleI've tried xtNewNote.visible=truethe ID of the textbox has a blue squiggly under it and I'm told that 'txtNewNote is not declared'and I've tried Dim txtNote As TextBox = CType(dlProject.FindControl("txtNewNote"), TextBox) txtNote.visible=trueHere, I just get an object not found when it gets to the second line
i place the onClick event in asp buttons. but it is showing error like
Too many characters in character literal
my code is
<asp:Button ID="Button1" runat="server" Text="Button" onClick="alert('The button was clicked.');" />
actually my requirement is when i click on the button i want to display some message and when we press ok then it is redirect to another page is it possible
I am unable to find any control in row editing event of gridview that i have put in edit template. I have to populate the dropdown control so that in editing the user can select value from the control.
How ever i can access the controls in row updating .But i need it in row editing event.
I am developing a web site to display some data that is inside a database. To do this I've created an ASPX web page that opens a connection to a database and retrieves the desired data. After that it populates an asp:table object dynamically.
The problem is that some of the fields that are retrieved from the database are too large to be displayed on the web page, so I decided to make a popup that would be able to display just the desired field.
To do this I've added a button to the asp:table so that when the user clicks it the popup would appear with the contents of the field. However what is happening is that when the user clicks on the button, the page just gets reloaded and the Click event handler is never called.
Below is the code in which I add the button to a TableCell, and the TableCell to the TableRow collection:
[Code]....
note that the popupHandler is a delegate to the function below. I am using it as a the Click event handler for testing purposes.
[Code]....
Also you should be aware that the table is only populated when the user clicks on a "Query" button inside the main ASPX web page, this means that I only populate the table after the PageLoad event has occurred.
I've constructed a simple horizontal DataList that will contain 'N' number of items. I'm now trying to wire it up so that when the user clicks on any item a server-side event is fired. To accomplish this I'm following this article: [URL]
We have a Datalist in which we have some data. Out of the 6 columns present in the datalist one of them is the primary key. Each row in the datalist has a "plus" button that will expand in the same window and display other data related to the primary key(in the same row)other than the 6 columns data that is displayed.
What I want to achieve is that on the button click, the primary key related to that particular row of Datalist should be fetched into a variable(whose button control is clicked). How to accomplish this? I am not able to find a solution as to when I click one of the buttons in a row, the particular primary key for that specific row should be attained so that I can call another function and hence retrieve the other data needed.
All these columns are in datalist in one single row as one record.name address phone are textboxes and photo is image control.outside datalist there are 2 buttons add and second is save.How to save these TextBox values in some variable and fire update query.
As we use datalist it will shown all the data which is on my data base. But I want to show only 5 row and rest of my data will be show on the button click so how can i do it...
I am posting this in the webforms section as I don't think I was clear on my last post. I am trying toinsert a gridview checkbox value to a database when I click the submit button. I have looked at dozens of examples but can't seem to put it together and I know this must be pretty simple.
I have One DataList in their three columns ID, FirstName and LastName, when I select ID then I want to access the value of ID how to get the value of selected ID.
I have a datalist control which uses repeatcolunm. I want to make Datalist items clickable and get the clicked item value into a textbox outside the datalist. I did this and it works only when I set "RepeatLayout="flow"" which cancels the "repeatcolunm" which is very necessary in my case. Below is code:
