I met some problem with the below code, it seems the gridview can not be updated automatically unless I press the fress botton of the web brower,
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try out by clicking a button a new textbox and label will auto created at the next row?
View 3 Repliesthe following is the Markup of my page based on a master page. its a log in page with a default login control.
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I have an ASP.NET GridView that has four columns. The first three are typical BoundField elements bound to a DataTable. The forth is a TemplateField element that I create a DropDownList in on the OnRowCreated event for the GridView.
What I'm attempting to do is walk down the data source for the GridView when a button is pressed. I really just need to get the values for columns one and four of each row. The first three columns have data as expected but the forth is displaying as empty. Is this because it wasn't a part of the DataTable originally? Is there any way to get the value for each drop down as I've described it, or will I need to rework this so each drop down list is a part of the DataTable?
I have 2 (.ascx) controls on my page, first is shopping items status and the second is a product list. How can i Update items from the first control when I press addToCart button from the second. Here is my code.
first .ascx
[Code]....
Second .ascx
[Code]....
I am using Ajax authentication service to login/logout users.And have 2 boxes one for logged users,another for any user.When user logged in he get loged in box,then go to another page,then press back,i have unlogged box.In Page_Load i check if (Reques.IsAuthenticated) then i change box on corresponding,in this case on Logged in box.But Page_Load is not called when i press button back(in browser) or backspace.
View 1 RepliesI have a page with lots of panels on it. Some of the panels are user controls and some are just on the page. I have a form on the page where you can add users and a gridview which is a user control showing a list of users.When a new user is added on the form I want to do gridview.databind() for the gridview in the user control. Does anyone know how to do this?
View 3 RepliesI have a gridview with Edit buttons, which turn into Update buttons when pressed:
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It worked fine before I added DBInterfaceGridView_RowEditing handler:
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Now it seems to be working in Debug mode, but in Release when I press Edit, the gridview just disappears.
My previous impression of RequiredFieldValidator and similar have been that they show you an error label and set Page.IsValid false and that is it. Meaning they leave the rest of the task (preventing the use of wrong input data) to you. But today I have realised say if you use a DetailsView to insert a new record to a database, and you use validators to check the TextBoxes inside the DetailsView, they automatically prevent the database from being updated.
I would like to know how this is implemented behind the scene. I'm guessing it aborted the Page Lifecycle at Validator.PreRender event, so that database connections at later stage could not be reached? I'm probably wrong. I'm trying to use Reflector to get inside the RequiredFieldValidator to see how it is implemented, but I don't really know where to look.
have a Gridview which repopulates itself when I click on a button outside the grid.This works fine, except that when I click on a button on the grid after repopulation, it gives the old values rather than the updated ones. I notice that querying GridView1 gives the grid when it was first populated.Anywhere I could have gone wrong?is already true.
View 5 RepliesI have a Data Grid View which display values from a SQL Query, and inside the data grid view I have two template fields one is Quantity and it is a text box and the other is Total Price and it is a label.
What I want to do is to insert a button called update and when I press this button the price Column should be multiplied by the quantity Column and the result should be displayed in the total Column.
I need to do calculation of different no as shown in fig..right now i am doing addition in the normal way...adding all the values of the textboxes and thenn showig the result in the last textbox..what i want is whenever i change any value in the any textboxes it should automatically reflect the changes in the final calculation(final textbox) without using calculate button.
Below is my .aspx code
<asp:Panel ID="Panel2" runat="server" Height="387px" Width="83%">
<table style="width:108%; height: 390px;">
<tr>
<td>
<asp:Panel ID="Panel1" runat="server" Width="718px">
<table style="width:100%;">
[Code] .....
Lets take an example of online ticket booking system. Many users could be booking the tickets at any point of time. a GridView displays the list of Allotted and Free seats If a seat gets booked, this information must get updated in all the opened pages in user's browser. User need not require to refresh the page to see if a seat is booked or not Should i put GridView in update panel and keep looking into the databse constantly ??? This could turn out to be a heavy work if databse is too large any other alternative?? or should i stick with the above approach....?
View 10 RepliesI have the following code snippet :
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With code behind :[Code]....
Why do I have to press the "Enable" button twice to enable a disabled ComboBox ?
I have combobox & button in my webpage, if i select a value from the combobox, then i click the button the page is refreshing, combobox value is changing.For Example Combobox value: 1, 2, 3, 4 .....If i selected 2 then i press the button, webpage is refreshing, combobox values is display from: 1, 2, 3, 4....Combobox should display 2Why combobox is displaying a selected value when i press the button.
Table Name: user
Name username
Raja 1
Ravi 2
Ram 3
kumar 4
...,
Button click event code
cmd1 = new OdbcCommand("Select name from users where username = '" + combobox1.Items[combobox1.SelectedIndex].Text + "' ", dbcon);
dr1 = cmd1.ExecuteReader();
[code]...
The Above code is working, but if i select the value 2 from the combobox, then i press the button textbox should display ravi, but textbox is displaying Raja, and also combobox also refreshing, combobox is not displaying 1 instead of 2.
Have a form with a button and some text fields on it.When I hit enter after filling a field the event for the button fires up event onClick.How can I get around this since on one of the fields I have a textchangeEvent I to fire up.
View 5 RepliesI have a page to display user's photo and when user press either left or right, it will evoke direct user to the previous or next photo of his/her.By and large, it is akin to facebook feature (when we view our photo and press left or right, we can jump to our previous or next photo).
View 6 RepliesI have an AJAX PopupExtender that popsup a panel with submit button. I want to recognise the enter key press as the click event for the submit buttNeed to set the form property called "AcceptButton" to this button to achieve this functionality. I have two popups with a submit button on each of them. How to set this behaviour ?
View 3 RepliesWhat is the best solution for adding Textbox controls dynamically to a page when a button is pressed?
The secnario is: "The page initially loads with 3-4 textboxes already displayed but the user needs another textbox added. They click add textbox and another textbox control appears."
I would hope to be able to do this within a updatepanel and use AJAX async postback.
- I'm using a RequiredFieldValidator to check whether the text box is empty. I only wanted this validation to run when I press one specific button.
- I dont want the validation to be done on every button control within a page. For example, i have 2 buttons, one is showing a list of data and another will be checking for an empty text boxes. So, when I click the show list button, I dont want the validation to be run, what I want is the validation to be run on the check empty text boxes button.
If I'm on a searchable site (example.com for example) and search some data then get a dropdown list, when I click on one of the items, then try to use the browser's back button to go back, I get the error "the page cannot be displayed". Does this have something to do with cookies or history settings?
I don't have this problem with mozilla, but I prefer to use IE for other reasons.
how can I retrieve data from a database when I press a button?
'Response.Write "<script type='text/javascript'>"
'Response.Write "$function btClick2(sql)"
'Response.Write "{"
'Response.Write "String sql = 'SELECT ID,CreateDate, UnitType, StationName FROM MyTable'"
'Response.Write "return sql;"
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This is just the part that is not working and I don't know if is correct!
I have to set enter key event to text box, it work fine in IE, but not in firefox.
Here my code:
function DoClickToButton() {
var keycode = (event.keyCode ? event.keyCode : (event.which ? event.which : event.charCode));
alert(keycode);
if (keycode == 13) {
document.getElementById('<%=Button1.ClientID %>').click(); return false;
}
else {
return true
};
}
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View 8 RepliesHow can one fire a button click event when someone presses Enter in Textbox. I had a master page on which Search button & a Textbox for writing Search text is there. When one clicks on "Search" button, it works fine. But when one presses Enter, no search results are displayed.
View 3 Replies