datagridview

Hiding Row in DataGridView Very Slow

I have a DataGridView in a Winforms app that has about 1000 rows (unbound) and 50 columns. Hiding a column takes a full 2 seconds. When I want to hide about half the rows, this becomes a problem. private void ShowRows(string match) { this.SuspendLayout(); foreach (DataGridViewRow row in uxMainList.Rows) {...

Filter the datagridview column based on the current row of another column in C#

I have a datagridview that is populating columns from different table. I want to filter the column based on another column of the current row. I tried to use the cell enter event of the datagridview and then filtered the column by filtering the binding source on the column of the current row. private void lINKDataGridView_CellEnter(obj...

DataGridView Winform Auto Insert Ordinal Column (Trick)

I want to get some trick for this problem. I have my table like this Product (uuid, Name) and one datagridview to display this information ( dataGridView.DataSouce = Products which is assign on runtime) My problem is that I want to have "No" column on dataGridView which will show like below No | Name 1 | ...

.NET DataGridView rows' default alignment all set to left

DataGridView gets bound to DataTable. I then try to set some columns' DefaultCellStyle.Alignment to right. It doesn't work. After a bunch of tinkering, it turns out that every single row's DefaultCellStyle.Alignment is set to left and overrides it. DataGridView.DefaultCellStyle or RowsDefaultCellStyle doesn't do anything. Makes sense sin...

C#: BackgroundWorker cloning resources?

The problem I've been struggling with this partiular problem for two days now and just run out of ideas. A little... background: we have a WinForms app that needs to access a database, construct a list of related in-memory objects from that data, and then display on a DataGridView. Important point is that we first populate an app-wide c...

What are the alternatives to DataGridView?

We're looking to replace DataGridView in our Winforms app. What are the alternatives - commercial or otherwise - that we ought to evaluate? ...

Editing a row in a gridview

I have a two text boxes named region id and region name..and a button control I enter some values into those text boxes and click the button to insert those values into the "gridview"and a "data table" associated with the gridview. The gridview has the "enable editing" set to true..but when i click the "edit" button of a particular row...

How to scroll vertically in DataGridView in pixel increment

I am using the DataGridView control in my application, Some of the rows in the grid having height more than DataGridView height, for scrolling I have set the ScrollBars property to ScrollBars.Both. vertical scroll bar is coming properly but on clicking on scrollbar buttons it scroll by one row. Is there any way (or windows API call or pr...

How to disable edit mode on cells but checkbox column?

My checkbox column doesn't respond when ticked, apparently it was set to read only, so changing state back to false again will make it possible to tick. However, that will turn the whole edit mode to true. I tried to set edit mode to programatically while setting ReadOnly mode to false, but that will disable the checkbox back again. How...

Disable Copy from DataGridView

Hi All, I think this is a simple question. How do I disable copy from a DataGridView. It's a silly security feature. Thanks, ...

What the name of the row caret in a DataGridView.CurrentRow

What is the official DataGridView nomenclature description of the little black triangle in the first column? It seems to mark the position of DataGridView.CurrentRow, but it's a get property only, and I'd like to set it. ...

inserting from datagrid to dataset

hi i m a newbee to c sharp .net i ve to add values from the datagrid to a table.. any way s ok. sample code or link s fine for me.. pls help me out thanx in advance.. ...

Reset the focus to Grid item

Hi I am currently working on setting tab order for my appliction. When I click some item inside grid view or datagrid it display pop up, How can access the client id of the particular item (cell) which caused the pop up to appear.. ?? And also how can reset the focus back top that item in grid view.. can anyone help?? ...

Building a DataTable in C# with one column at a time

I am trying to build a Retirement Calculator as a chance to make something useful and learn C# better. Currently, I am trying to build a DataTable with a dynamic amount of rows/columns. For context, I ask the user for some inputs regarding salary, % of salary being invested, and expected ROI. I have some other stuff too, but it isn't r...

Operation can only be performed on rows that belong to a DataGridView control?

it happens when i change the DataSource. i have checked everything(stack traces, all exception information, datasources, grids, all the threads, etc) i have also write lots of diagnostic code(+3000 line) it seems to be a virus, it is going to destroy everything in my app. all grids are going to have the very same error.(while i have not...

How can you determine when the user scrolls to the bottom of a DataGridView?

I am writing a C# Windows Forms Application in Visual Studio 2008. I have a DataGridView with a lot of data in it. I would like to initially only populate 10,000 rows and add more only when the user scrolls to the bottom. I am handling the DataGridView's Scroll event, but it never seems to raise with the ScrollEventArgs.Type property set...

InvalidCastException in DataGridView

(Using VS 2010 Beta 2 - .Net 4.0 B2 Rel) I have a class, MyTable, derived from BindingList where S is a struct. S is made up of several other structs, for example: public class MyTable<S>:BindingList<S> where S: struct { ... } public struct MyStruct { public MyReal r1; public MyReal r2; public MyReal R1 {get{...} set...

.NET 3.5 DataGridView Control Display values

Hi, Having a problem with the dataGridView control being populated with Display members: Code: private string settingsFile = @"Data\IntelliSched.xml"; private void loadDataFromXML() { dataSetXML.ReadXml(settingsFile); } DataSet contents: Table -> zone id name ---- Table -> postcode name code zone active ---- Pic...

Problem with dynamic create tabPages in Winforms TabControl

I want to create dynamic tabPages in TabControl. In each tabPage I create dataGridView and i want to fill the entire space of each tabPage with this dataGrid. Here is code, where i do this: private void tabControlMutants_SelectedIndexChanged(object sender, EventArgs e) { DataGridView dgw = new DataGridView(); D...

How to bind a List of a DataObject to a Grid with BindingSources?

In an assembly I created a class like the following: [DataObject(true)] public class A { public int Foo{get;set;} [DataObjectMethod[DataObjectMethodType.Select)] public static List<A> GetAllA(string ConnectionString) { // return filled List<A> } } Now I want to display this List with a Gridcontrol under Winforms. I though of...