I'm a complete novice in .NET. I am trying to implement a multi textbox / dropdowns / checkboxes search for a website using vb.net. How do I pass the values of my form fields to my griedview and display the search result on the same page?
I've written a stored procedure and specified it as data source for my gridview and defined parameter source as my CONTROLS (textboxes, checkboxes n dropdowns) on the form. What I want is when a user fills out one or multiple fields on the form, how do I display data in the gridview on the click of SEARCH button? Also is it necessary to write a codebehind for my search button or we can achieve the desired result in some other way?
I've got a bit of a problem UpdatePanelAnimationExtenders. Here's an example of the code structure I have:
[Code]....
Now here's my problem. When dd1 triggers the postback both dd1 and dd2 get disabled (instead of just dd1) and after the request is complete only dd1 gets enabled back. The behaviour is also true the other way around (if dd2 triggers the postback both dropdowns get disabled but only dd2 gets enabled back). I'm not really sure what to make of this.
I have three cascading dropdowns on my web page and they work fine. The issue I am facing is that there are other controls on the page which cause a postback and with each postback the cascading drop downs are being re-populated (service methods are called) which is becoming a performnace issue.
I am using panel to hide and display certain controls on a page, On one of my panel i have three drop down, all i want is to make sure that user has selected something from the dropdowns otherwise they cant proceed, i am using the requiredfield validator but its just not working
I have 45 dropdown lists in my asp page. There are some methods that I can apply to all of these dropdowns. Is it possible to convert them into an array of dropdowns for ease of use?
why when I create a checkbox using HTML.CheckboxFor the values remain after postback where as if I just create a simple HTML checkbox in HTML after postback the value is no longer there?
What is the difference between HTML.Checkbox vs. an HTML checkbox? Why does one retain the values after postback and one does not?
In the code behind for the aspx page, i have this (e.g. I build HTML for the checkboxes):
[code]....
Not my proudest moment, but whatever. The problem is that when this page posts back via some event on the page, I never get these tags in the Request.Form collection.
Is this simply how ASP.NET works (e.g. only server-side control post back) or am I missing something simple.
I am working on a datagrid that has a column with checkboxes... the checkboxes should be checked when the page loaded. The problem is that whenever I trigger a postback, all the checkboxes will be unchecked!!
I don't know what is causing this or what should I do to prevent it from unchecking the checkboxes.
Now i am having two dropdown one is asp dropdownlist and 2ND is MultiSelect-DropDownList-with-CheckBoxes. 2nd dropdown is populating on selected value of first.On page load it works fine. Now, on change of value in dropdown, selected index change 2nd dropdown (MultiSelect-DropDownList-with-CheckBoxes) fills but i see a list box instead of dropdown.
I am using the captcha from recaptcha.net in my asp.net webform. The webform has a checkbox list which does an auto-postback. Now when I select any of the checkboxes, the pages is posting back and the captcha is refreshing too and gives me a new image and also throws the validation error,"Incorrect word, please enter".how to avoid the refrshing of the image(or captcha) on every postback of the page.I tried using other capctha controls from code project but I need an audio control for my captcha and have tried to use .net speech libraries to produce the audio, but could not succeed.So I am working with the recaptcha instead.
I have set of questions named as 1,a,b,c,d,2,3question '1' has radio button list like below. (a,b,c,d) and '3' are enabled only when user selects something apart rom "Never"number 2 is enabled only if user answers something from question 'd' (which is a checkboxlist)My problem is when user selects "A few times a year from 1 question" and some answer(for example second option as "Frequently" from number 3 which is a radio button list and now user selected differnt answer for question 1 (let say Montly) now answer to 3rd question autoamtically changed to first option in radio button list")
I have placed two radiobutton's on simple .aspx page. I didn't used any Update Panel or any javascript on that page also set both radiobutton's AutoPostback="True", But it's not responding as I want.
I'm inserting controls dynamicaly on my page on pre-init, thease controls are inserting based on a dropDownList that load its values from a database. These values are diferent to all clients.
If I insert my controls on pre-init then I have access to the value of radiobuttons, but this insert only 1 controls cause in pre render I don't have the selected value of dropDown.
If I insert my controls on on-load event then I have the value of my dropDownList control so I can be able to inser the correct number o controls but I don't have the value of my auto-postback radioButtons.
I make a project to solve this and I share the code of it here. (VB.Net 4.0)
I have a dropdown listbox whose datasource is a dictionary.
When I have added items to the list and try to select an item from the list, the item I selected does not get the focus. And this comes when I changed the property autopostback to true.
Here are some of the codes which are relevant to it.
I'm having a pretty nasty problem with an auto-completing textbox. I want to initiate an asynchronous PostBack whenever a user selects an item from the auto-completed field and retain the value of the item, rather than the text inputted. This works perfectly when enter is pressed rather than a mouse click.
An example of my issue:
Someone goes to the page, and types 1000 into the textbox. The autocomplete displays 10002, 1000B, and 10000. The user clicks on 1000B and an asynchronous PostBack initiates. Instead of 1000B, the TextBox.Text value is still 1000. My assumption is that the textbox is initiating the PostBack before the value is actually getting assigned to it.
I presume only the Button server control in ASP.NET has AUTO POST BACK set to TRUE by default. All others need explicit setting of this property on need basis.
How to delay the Auto postback for 10sec in textbox of asp.net.
I am filling the textbox by using autofill. I'm calling textchanged method in code behind, So I need to delay the Textbox for 10sec. Problem is when I entered single letter it is going for textchanged. so i need to delay the Autopost back
I have an asp.net listbox with 15 rows and auto postback when the selected item is changed. This works as expected but, when the form is re-loaded, IE scrolls the list so that the last selected item is now the top visible item in the list. This produces a confusing/jumpy effect for the users and makes the listbox more difficult to use than it needs to be.
Is there any way to get the list scroll position to stay as it was before the postback? i.e, if I select an item from the middle of the listbox, the listbox is scrolled to the same point after postback.
I have a simple page that displays a gridview once 3 criteria are inputed. I would like to add an submit button so that the date just not auto populate the gridview.
When I select the Search By dropdown, an additional gridview is created on auto-postback.I will ad a visual and code as soon as this is accepted for review.
I have a "database explorer" page that is desgined to be pointed to an unknown database and allow users to browse the data, so it basically uses the SQL system tables to develop its queries and pull in data to tables using auto-generate columns.The problem that I have is that I would like certain types of columns to have certain formats and I'm wondering the best way to go about it. I could format the column in code in the RowDataBound event I assume, but I'm wondering if there some better standard way to do this? Is there a setting of any kind that I can use? For example I want all of the datetime fields to be formated for short date, like {0:d}, I want decimal fields to have 4 decimal places, etc.
