ASP.NET - Persist A GridView's Dynamically Chosen DataSourceID Over Multiple Button Clicks?
Nov 11, 2009
I have an app where I need to dynamically choose an SQLDataSource for a GridView so I can use 1 of 2 stored procedures, depending on who is logged into the system. My problem is that I am using logic like this, in the button click...
If Session("SiteType") = "Type1" Then
GridView1.DataSourceID = "SqlDataSource2"
Else
[code]....
This happens when you click the button that reveals the panel with the gridview in it. The user then makes changes (basically adjusting a text box on one or more liens of the grid) and then clicks "save". However, the gridview no longer knows its DataSourceID once this happens, so when I try to go through the gridview's rows - there are none.
If, in the save button's click, I put the same code, it (of course) blanks out any of the data changes I made in the form. So, simply put - how do I dynamically choose the SqlDataSource, but only one time, so that the program then keeps that SqlDataSourceID associated with the gridview until the end of the cycle? Is this a ViewState thing? I don't totally understand ViewState...
I'm trying to create a page dynamically, but I falling at the first herdle. I have create the below after reading may blogs/post/articles. The problem I have is when I click the first buttons I created nothing happend, if I then click it again it works.Can any one tell me where I'm going wrong?
To prevent multiple clicks on button in VB6 I have add button.enabled=false in start procedure and button.enabled=true in end. But in Vb.Net all clicks are stored in memory and wher procedure is over - then it started again. You can see it in this example:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Button1.Enabled = False
I have been trying to figure out how to do this program for a few days. Here is the question.Write a Windows application that allows the user to enter a seven-letter combination corresponding to that number in a multiple line TextBox when the user clicks the Generate Words button.Avoid phone numbers with the digits 0&1.
I got some help from my instructor but I can't get anything in the listbox?
I have a modal popup that contains a gridview. On the click of a button inside of a grid i reload the gridview with the data that depends on the id of the row clicked in the gridview. I would have like to reload the gridview onclientclick but I couldn't find a way to do that. Is it possible to reload a gridview client-side without the user even knowing the page partially loaded?
I have a class with a textblock and button control using silverlight.When I click on a button I cant set the textblock to anything? why? I take it I cant handle events in classes this way?
Public Class ClassQuestion Dim _txt1 As New TextBlock Dim _but1, _but2 As New Button Public Sub New(ByVal canvas1 As Canvas) AddHandler _but1.Click, AddressOf but1_click
Private Sub but1_click(ByVal sender As System.Object, ByVal e As RoutedEventArgs)_txt1.Text = "dasd" 'no error but doesnt work End Sub
i am building vb.net web application with vs2010 i have in the form two buttons, accept and reject What i want is when i click on accept or reject, it stays disable for clicking until the code on his click event is fully executed now when i run the application, i can click several times on the button before the code on the click event is executed?
I'm working on an ASP.Net page containing a GridView, which is populated with customer orders returned by a stored procedure. What I'd like to do is dynamically change the backcolor of the GridView rows to indicate priority.
The stored procedure returns an integer indicating the records priority, I think I just need to translate the integer to a color, then make the GridView row display it.
Im creating a noughts and crosses game, what I want to happen is for the user to choose either an X or a O from a combo box then click the button to try and win the game, now the game is just about finished, ive finished the design work and all the code is written.HoweverThere is one problem, the buttons are not behaving correctly, when I first load the game the first two button select a character and they shouldnt until a character is selected, also when I choose a character only the first two buttons work, if I press the new game button which resets all the fields then everything works fine.Below is the code I wrote for my combo box - human player is a form level variable as a string data type
I'm using devexpress aspxbutton, and I was wondering how can I prevent the user from clicking the button more then once..? basically it does an update/insert statement.
I need to visually moves the cursor using keyboard keys.
1) I need to get the mouse to where the button is
2) Simulate the mouse movement to the button from wherever it is
3) and simulate a button click.
Only after i select a button i can start drawing on my form. I have a code here, when i hold the Ctrl key and press the arrow keys, the mouse will start drawing straight lines. But what happen when i need to use controls like buttons, comboboxes etc.?
I want to be able to hit enter or return on the keyboard and then for the next button to automatically click. Once you're done typing in the value to a textbox you hit return and the next button clicks.
I am dynamically adding a link button to every cell in a gridview. Adding the button works however the firing of the even handler doesn't. i need the linkbutton to call a function and pass some data for processing. My code is below. I have found solutions from the site that have gotten me this far.At the moment the gridview loads the cells with buttons in blue. when you click them they go back to plain text and no function is called.
I have a Gridview that I create a dynamic footer wired up to the RowDataBound event.
However there is a 50/50 chance that 3 of the columns will have no data.
I want to be able to dynamically hide the columns with no data if possible.
I have tried doing this in the RowDatabound event by checking if the value is = 0 but that does not work because I think the event is called to early?
Is there anyway to refer to the values in the Footer row after ALL the data has been bound?
Ideally in VB
`Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound If e.Row.RowType = DataControlRowType.DataRow Then
I am stuck at a task. What I want is, I am creating a table in the database on the fly in the code behind using the below code(in VB).Now my main problem is I want to display this table which is created in step 2 of a wizard, in step 3 using a GRIDVIEW. But as we all know a GridView needs a sqldatasource for values to be displayed, however what I need for achieving this is dynamically assign a datasource to the GridView, but I am not figuring out HOW?
Dim NewTable As String Dim FullName2 As String = "Dynamic" + "_" + lblCompanyName.Text + "_" + tbCustomerFileName.Text 'Get Row Headers and map to Fields readerXML.ReadHeaders()
I have a vb.net website with a gridview that currently has exam questions displaying vertically in each row like this:
Name question answer ----------------------- Joe question1 answer1 Joe question2 answer2
[code]....
But I would like to change it, so that each question is a header, like this:
Name question1 question2 question3 ---------------------------------- Joe answer1 answer2 answer3 Jill answer1 answer2 answer3
This makes it more readable since each user is only listed once.I would like to stick with a gridview instead of rewriting all my code.I am actually binding my data to the gridview via some other programmers class. I am using LINQ like this:
I am currently trying to create a log in form that requires a user to click buttons in a specific sequence (other than the traditional username/login format) in order to open another form. I am new to Visual Basic 2008.
I have a GRIDVIEW with columns, one of which contains a CSV of possible values for the dropdown that must appear on each row.
Private Sub GridViewParameters_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridViewParameters.RowDataBound If e.Row.RowType = DataControlRowType.DataRow Then[code].....
Depending on whether the type of control is a dropdown, textbox, or check box (feined in the table) it hides or shows the relevant control type. If it is a dropdown it needs to get its values from a CSV in a corresponding column. I have a SP that returns a these in table form if passed the id of the relevant row.How do I get that is from the gridview to pass to the drop down and load it correctly?
I have created a Stored Procedure in SQL which produces a pivot table. I've successfully created a GridView in ASP.NET to display this data.
However, some of my column headings are dynamically generated from the data (AutoGenerateColumns=True), and those column headings are just dates, so they will look different almost every time the table is generated.
This all works fine, except that the date format of the column headings is wrong. I know I could change the way SQL produces the dates in its output, but I don't want to do it that way. I want to control it from the web page.
I didn't think this would be difficult - I thought I could just do something along the lines of finding the cells in the header row and changing the datastringformat. The problem is that whether I put my code in the GridView's DataBound or RowDataBound event, the cells in the header row seem to be empty, so I can't reformat them. It's as if the headers get populate some time AFTER the DataBound event, but I don't know when or how to trap it.
