.net - Disable A Button Based On Three Textbox Fields?
Dec 13, 2010
I'm quite new to VB.net (and VS 2008), so I'm afraid my question might be basic, but I'm not sure how to solve it.I have a winform with three textbox fields and a button. All textbox fields must be filled before the user can click the button to continue. To this end I would like to disable the button as long as there is at least one empty textbox.
If I had only one textbox field, it would be easy for me to do. In the Textbox1_Leave event I would check if Textbox1.Text is not empty and if so, set Button1.Enabled = True.But what should I do if I have three textboxes? Have three event handlers, one for each textbox? Or is there a way I'm not familiar with?
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Apr 8, 2012
I have a table which contains a list of products for a company. They input data about how much stock they have and also the level at which they want to be reminded that they need to order new stock.
[Code]...
I want to list all the true results in a form which the user is then able to navigate through. What would be the best way to go about doing this?
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May 16, 2009
to disable right click and to disable the start button and task bar?
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Jun 19, 2009
I want to allow the user to enable or disable a textbox by clicking either a button (enable) or the reverse. (disable) if the user clicks the enable button the textbox should receive the focus.
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Feb 4, 2011
I want the user to be able to click on the "search" button, and for a diaglog box to open, with two options. "ID" or "Postcode".
How would i do this, and then how could i intergrate my line of code into that?
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Nov 15, 2010
how i can implement below requirement using asp.net and vb.net.I have three fields in a form which are filled by users. Based on these three values, i need to auto-populate the 4th field.I have planned to implement this in the following way.Write a separate class file with a function to calculate the possible values for the 4th fields based on 1st 3 inputs. This function can return some where between 1-10 values. So I've decided to use drop-down for 4th field, and allow users to select the appropriate value.Call the above function in onchange function of 3rd field and take and use the return values to populate the 4th field. I'm planning to get the return values in array field.(Does this need a post back?)
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Nov 7, 2011
I apologize if it is not. I am trying to write a script in Visual Studio 2008 (using a VB project) that will, upon the clicking of a button:
- A file object will be created.
-Said file object will read in a number of files from a specified file path.
-A dataset will be created and populated with fields from two columns within a database table; app_id and company_name.
-The script will read through the file names and fields recorded in the dataset, renaming the file to the app_id if the original file name contained the company_name.
The code I have so far to do this:
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click
'Create the file object
Dim objFSO
The problem is that currently this code will only rename the file if the file name and company_name match exactly, ideally I'd need to include a clause to make it rename if the file name is "LIKE" or "contains" the company_name.
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Jun 4, 2011
I am required to send MS-Access table to SQL Server Database, based on fields Selected in Listview.
1)Till now i am able to get Access table names and their field in List view.
2)I am able to check whether database exists and Whether table exists in SQL Server with same name from VB.Net.Now i don't know how to insert Access Tables based in Fields Selected in ListView to SQL Server.
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Apr 9, 2009
i saw jim example in the codebank and i added the percent progress parameter to report progress method (to change the progress bar value)this is jim example:-
vb.net
Private Sub BackgroundWorker1_DoWork(ByVal sender As Object, _
ByVal e As DoWorkEventArgs) Handles BackgroundWorker1.DoWork
[code]....
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Feb 27, 2009
My datagridview consists of Three columns.
1st column is Datagridviewcolumn
2nd column is datagridviewcheckboxcolumn
3st column is Datagridviewcolumn
so 3rd column i made as readonly.so i need to enable the 3rd column cell based on the checkbox check properry
so i am generating datagridview column dynamically and populating values in the datagridview dynamically.so my need is after populating the value if i check the check box the current row of the 3rd column cell has to be enabled. so how to do this. please show me some sample code if there any. please
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Jan 18, 2011
I am trying to put in scripts for google analytics in my code. But I want it to run only if the environment is production and not in dev or qa. This javascript runs at page load itself and I am confused how to make it run conditionally. My app is an asp.net app.
Javascript is always confusing to me. There are many other javascripts in the page and I just need to disable this one. Had it been a .net code/function I would check for the environment and conditionally run the function. But I am confused about how to accomplish this type of functionality with javascript
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Jul 16, 2011
I have a database with a table that is a child to many other tables. I am using this child table as a datasource for a datagridview. I am using comboboxes to display specific fields in any parent tables, instead of the user seeing the foreign key. Everything is fine. However, I would like to filter the BindingSource based on text matches between any of the fields in the child table and the corresponding fields of the parent tables.
[Code]...
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May 18, 2010
Currently working on a project to automate the input based on the Summary file (xls format)
1. I want to be able to do the following: update, append, delete and populate the records to the various files based on two distinct fields, column A & F (see attached file).
2. Researched the process, requires knowing VB codes, are you familiar with this language? If so, how can I simplify the process? Please advise.
3. The files will reside on the SPP.
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Apr 27, 2012
In VB.NET, I have a LinkButton that, when clicked, creates a report. We want to disable this functionality based on whom is logged into the system. I have a session variable to indicate whether this should be visible or not but when I set idLinkButton.visible = False, it has no effect. Any ideas on what I need to do to be able to turn this on and off?
CODE:
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Mar 8, 2012
What i am trying to is create a function were by a user when he logs in, based on the rights given to them they can either use certain buttons . I no i have to use the enable and disable function.[code]if username is true and user_name is Sales then enable x y z buttons. i been trying looking around and reading and found the following which i cannot get to work with my system but they follow a similiar patten to what i want to achieve.[code]
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Feb 15, 2011
each of the ToolStripMenuItems has more than 20 ChildItems and each of these ChildItems have more than 30 ChildItems.In my form I havea login form and each user must log in.I want to know that how can I check my UserAccess Table with these MenuItems and ChildItems names and if the user does not have the MenuItem or ChildItem name in UserAccess Table, the MenuItem or ChildItem must be disabled.
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Nov 23, 2009
How to enable / disable menu items based on allowed security roles specified for an item.
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Oct 1, 2011
I am trying to put the value in the textbox fields. I do have a working query for it.
here is my code:
[Code].....
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Mar 23, 2011
How do I disable a submit button until all controls are filled? Is there a way to do this without adding conditional statements to each controls?
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Jan 6, 2011
i have a form issue and return form. where Issuer_ID is the primary key, this form uses for boht emp and for student issuing book. at run time the user has to select a radio button for student or for employe. if he select student so after entering the full information when he press submit button so student query is execute and data stored in database, keeping the Employee field null, and when user select the employee radio button and after pressing the submit button, so employee querry executes and stores data in employee field, keep the student filed null. remmber and Student ID and Employee ID or foreign keys in isuee and return table and radiobuttons are not the part of database, its just on form.
now i want that when a user gives his issuer ID and at the lost focus event of issuer id, it is checked that if the record exists so the data is bind on the form, if does not exist so the user has to make entry, but if the data loads on form so how user will find out that this data is of student or of employee?
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Mar 4, 2009
I'm unsure as to how to take two pieces of information from a table and display them into a textbox. The textbox should display the 'Balance' and the total money available for withdrawl (balance + overdraft limit). I believe I need to use the data bindings command e.g. TextBoxDetails.DataBinding.Add?
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Feb 22, 2010
First off, let me apologize for my wording. I'm a student programmer and code primarily in JAVA so my my lingo may be a little skewed.I have created a method to create text boxes in my program that all have the same properties (ie certain text, size, font, fore color, backcolor,etc.) that looks like this:
[Code]...
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Aug 4, 2009
I have a button called "btnContinue". then, i have a textbox beside it for the user to enter a name. If the user has not entered anything, i want the button to be disabled from being clicked. But once the user entered a character into the textbox, the btnContinue will be enabled for clicking.
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Jul 4, 2011
I have developed a Windows application using C# 4 and SQL Server 2008,
My application works very well.This application is using by six users at the same time.
I want that, whoever click button first from these six users, the button on other 5 user's PC must be disable till the user finishes adding data.. then it must be enabled...
something..
btn.disable = true;
data saved
btn.disable = false;
so, it cant be duplicated..
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Jun 20, 2011
I'm facing a problem with my current member card reader development.
I'm reading the card number (just a serial number of 4 digits) with a card reader. this seems to work fine (even converting the text string to integers).
This number is then put in a query to find the exact record that corresponds with this number
Me.JSM_LedenTableAdapter.GetDataByKaartnummer(IntCardNr)
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Mar 15, 2010
Have anyone developed a textbox where it is possible to display 2 fields in the textbox. We want to be able to show ID + description in the same textbox. (When user enter the textbox description may go away and the user can enter an ID)
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Jan 23, 2012
I have a vb.net based windows application, where when "GO" button is clicked a bunch of data is loaded into DB. So in my application as soon as "GO" button is clicked I want to just disable it and would like to enable it back when the uploading has completed.Now in my specific method for btnGo_Click() I have:
btnGo.Enabled = False
as first line and
btnGo.Enabled = True
[code]....
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Jun 6, 2011
How can i disable a button after i click it and shows another form, and enable it after i close the form that was opened.
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Feb 11, 2009
Yes is There AnyWay To Disable The Start Up Button Like This:
Yea like IS there A Source Code To Disable It? _-THxxxxx
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Aug 27, 2009
Ok Im making a webbrowser and I need transparent buttons and they are kinda transparent its just they still have a backcolor. Is there any way I can disable the button backcolor?
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