tableadapter will not return null values
I am trying to change the NullValue property of a field to return a null if the field is null. Of course, this causes the followng error msg even though the underlying table allows null values: "For...
View ArticleInsert/Update NULL dates using TableAdapter
Using VS 2017, I've got a TableAdapter, in which I'm trying to insert NULL dates--using its INSERT command.I'm being stopped when it encounters a DATE field, which is NULL. (Allowable on the DB...
View ArticleHow to show my List of data in Pivot format
I have list of information with following fields:Project State Title ABC Resolved Title1 ABC Pending Title2 DEF Archived Title3 DEF Resolved Title4 DEF Committed Title5 DEF Active Title6I want output...
View ArticleNeed Help I would like to ask why my text box can't read the barcode scanned...
I am writing a barcode scanner program i face the issue is when user the 2d barcode scanner Scan the barcode. my textbox can not read the data. can someone help me take a look. Thanks.below is my...
View ArticleNeed Help can someone told me why i am no success show my error message when...
Good Day, i am wring one program. The program purpose is when the textbox detect textbox word is out of limit it can't to continue writing and it will pop out a error message. Below is my code can...
View ArticleSpeeding up setting of DataGridView.RowCount
I'm having an issue with a datagridview running in virtual mode. The DataGridView itself runs in VirtualMode has 6 set columns. The ammount of data returned could be very large (250k rows). The slow...
View ArticleHow to persist cookie on auto redirect URLs ?
I am using .NET 3.5 Winforms Web Browser control where I am trying to implement SSO for my app. I am getting authenticated successful and receiving all the cookies from the SSO service. When the...
View Articlehow to get value from datagridview using row header mouse double click
here i got error when i click on grid row{"Index was out of range. Must be non-negative and less than the size of the collection.\r\nParameter name: index"}here the code private void...
View ArticleWhat is the usage of let keyword in LINQ
I like to know why and when people use let keyword in linq? Please come with some scenarios which can describe the situation to use let keyword in linq.
View ArticleMay i ask how can i solve this error message (System.Windows.Forms.TextBox,...
I face the issue is after i scan my barcoede i will get this error message on my textbox1 can someone pls tell me how can i solve.is i missing something.Public Class Form1 Private dataIn As String...
View ArticleI get this error message on my program Conversion from string "" to type...
I get this error message on my program Conversion from string "" to type 'Double' is not valid. what is i missing can someone help me Private Sub txtPrice_TextChanged(ByVal sender As System.Object,...
View ArticleAccessing array of child objects in c#
I am having a scenario like the following in datagridView - CellPaintingEventobject cellValue = e.FormattedValue; through the above sequence i am getting array of values sometimes i.e:cellValue =...
View ArticleA problem with datagridview combobox
Hi, friends.. I have a problem relating to datagridview combobox.. I have a datagridview binded with a customer datatable, one of datagridview columns is combobox which uses student datatable as a...
View ArticleMay i ask how to use the same serial port in different forms can help me take...
in current situation my form 1 textbox can receive the data after scan but form 2 can't not below is my coding can someone help me take a lookform 1Private Sub Form1_Load(ByVal sender As System.Object,...
View ArticleHow to Display Sum Total in the Footer of the DatagridView
hi alli have windows application in which a form containing datagridview is there.in that datagridview i want to show total of values of one column at last row . How can i do that
View Articlehow to use DataTable to populate a ListBox?
I am trying to retrieve data from SQL Server to a DataTable object://It doesn't really relevant to the question, so you can skip reading this function public static DataTable FillByMail(string Email) {...
View ArticleHow to open multiselected files in datagridview in C#
Hi I have alot of excel files I want to selecte Three files and show them in datagridview, I tried with code but my code show only the last one, e.g I have 1,2,3 excel files, datagridview show only...
View ArticleDataGridView row automatically selected
This seems to be a really simple issue, but for some reason I've failed to find an answer. I have a DataGridView with MultiSelect = true and SelectionMode = FullRowSelect.I'm binding a business entity...
View ArticleMultiple timers that are triggered each specifically C# WPF
Section name | Time (min) | ---------------------------| Warehouse | 04:10 | ---------------------------| Shipping | Not started| ---------------------------| Receiving | 15:70 |...
View ArticleDGVprinter
Hello guys, In the application I'm currently working, I use datagridview. And for printing data from datagridviewI use DGVprinter. Do you know how I can put my footer only on the last page of my...
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