problem about DataGridView-Collection of common programming errors

2 years ago
admin
4 minutes

  • cell-in
    C# SQL-Server DataGridView
    Hi,   I have a DataGridView on form of my project. First step; I can transfer from .csv files to DataGridView. I choose .csv file with openFileDialog. And data transfer from .csv files to dataGridViw. And It is okay. I can do first step.   Second step; i want to create a new table on my Database according to data on my datagridview in C#.   So, I want to import my data from DataGridView to Sql Server.   I wrote something but i have an error.   Error message is:   o

  • RadethDart
    VB10 database VB.NET DataGridView
    Alright, I am having the hardest time figuring this out. I have done research on fixing this for a couple days and I am stuck. It is time to ask for help.   In my project I am trying to delete a row out of the database and I read how to do that from many different sources telling me to use Ole objects and all that. I have something that works in a way: the row deletes, but when I run the program it doesn’t save when I do it this way.  Public Function ForceDelete()ForceDelete = Nothing

  • coommark
    C# DataGridView
    I have a DatagridView in a Windows forms application which is used for account transactions.   I want that whenever user enters a number in the Debit Column, it gets converted to a negetive number (eg 500 to -500) immediately and display the negetive number.   Please, how do I do that? I have tried all day without success.   I am using VS 2008, SQL Server 2008, Typed DataSets, and WinForms UI.   Thank you.

  • joshrduncan2012
    SQL-CE C# DataGridView Forms
    Hi everyone!   I am trying to implement in a datagridview the ability to tab to the next cell within a row. I currently have a combobox (not part of the datagridview) laying over the text box cells. We needed that based on the fact that what we were looking for was not possible with the datagridview combobox cells.   Here is what I have so far to accomplish the tabbing from one cell to another:  private void dataGridView1_CellEnter(object sender, DataGridViewCellEventArgs e) {if

  • Member 7791974
    C# Visual-Studio DataGridView
    Hey guys, i have a data grid view that i would like to grab an item from and then use it as a selection. I do this because in the form i only want to save data that is already in the database as my business rules are very strict, so to save people having to type it in perfectly, they just have to select it from the data grid view and their selection will be saved into the database. So in previous cases i have implemented it like this to grab the person ID and it works fine. the code i used for p

  • adityavishnu
    Access VB.NET DataGridView
    I have datagridview & database my aim is to save data in database and view it on datagridview. my problems is i have managed to add data into database and view it on datagridview but when closed ,it automatically gets deleted,when i add data in database file manually in debug folder[where actually i didn’t save it] it is seen in datagrid view i tried changing the Copy to Output Directory to do not copy which resulted in an oledbexception unhandled “Could not find file …” error.

  • lester555
    C# SQL-Server DataGridView
    when i use this code vs shows following error : Specified cast is not valid. with title : InvalidCastExeption was unhandledprivate void TradeLog_Load_1(object sender, EventArgs e){ sqlDataAdapter1.Fill(dataSet11); decimal allwin;decimal win = 0;decimal self;  for (int i = 0; i < DgvLog.Rows.Count; i++){self = (decimal)DgvLog.Rows[i].Cells[“selfPriceDataGridViewTextBoxColumn”].Value;win += self;}  allwin = sum – win;label7.Text = win.ToString();}   what is incorrect i think it m

Originally posted 2013-11-27 12:02:12.