datagridview

How to disable the last blank line in DatagridView?

For C# Window Form, there is a tool called DataGridView. If we use that to display data, it shows an extra line. If we have 3 rows of data, it shows 4 rows. the 4th row is a blank row. I wanna know how to disable it.. or hide it? ...

How to make the particular row get selected in datagridview based on treeview selection

I will have a treenode with some nodes. I will have a datagridview on my form. Initially i will load some data in to the gridview. Now if i select a node at my trreview i would like to make a particular row as selected one. Suppose my treeview is as follows Root |-> Child |->Child1 If i select child i would like to make a correspondi...

DataGridView and DataBinding with custom columns

My requirement is as follows, I am calling a procedure and I'm populating a DataTable. Assume that the procedure is returning emp_id, emp_name, designation and status. When I use DataGridView1.DataSource = <Name of the DataTable>, I get all the columns populated into the DataGridView. How can I display only selected columns in the DataGr...

DataGridView Current Cell border Highlight

I am using a datagridview with the selectionmode as full row select I am not able to find how to darken the border of the current cell. Can any body please help? Thanks ...

What should I write for vb.net datagridview if I want to get same result?

I have used mshflexgrid for my vb.net program. But it shows error when I try to build because vb.net doesnt support mshflexgrid. Please check my code & tell me what should I do to do same thing there in datagridview? Datagridview doesnt support same code. So would you please tell me what should I write for it? Please check my code. Publ...

DataGridView binding problem: "Index -1 does not have a value."

I have a datagridview bound to a binding source and a couple buttons on a form. One button adds an item to the binding source, the other removes the currently selected item. There's also an event handler that listens to the CurrentChanged event and updates the Enabled status of the Remove button. Everything is hunky dory until I go to ...

What Causes this NullReferenceException when Accessing a Cell of a DataGridView?

I have a DataGridView control and I'm checking if I'm getting the correct value of column 0 But when I click my button to echo the value, I always get this error... Are there errors in my code? Or what? ...

Problem with the DataTable and DataGridView objects

Hello everyone, I have the following problem In my aplication I doing some calculations and after it put them into DataTable object (6 columns, data in the latest one is most important). To view the results I put them into DataGridView object and there is my problem. Depending on the data contained in the last column I want to mark the...

DataGridView blocks the UI Thread

I am working on application which uses a DataGridView control. Since there is a lot of data I use the VirtualMode to use paging, but even with this feature this take a while to update DataGridView. So I created a control which spins and entertain an user. Unfortunately there are some issues with this solution, namely when the entertainme...

In vb.net Display data in Datagridview

I need to display my table in datagrid view.... But not full table contents ...... display if "Name = aaa " in vb.net EG : "select * from table where name as 'aaa'" Output for this query display in data gridview If anybody know answer help me..... Thank you...... ...

OnLostFocus is called after dispose is called in a dataGridView

I Have a control inheriting the dataGridView control. I have the onLostFocus method overrided. Lately I encountereda weird behavior. if trying to close the form while a cell is in teh middle of being edited. the dispose method will be called and then teh onLostFocus is called that results in a nullReferenceException protected overr...

Monetary symbol (not $) in DataGridView field values

I'm building an application that is for a non-profit in Guatemala. Everything in the system is in Quetzales, which is denoted with a Q (i.e. Q100.00) is 100 Quetzales. I need to be able to modify the monetary values in any DataGridView column, but I've been unable to figure out an easy way to do it with formatting like you can with a d...

How to handle KeyEvents in a DataGridViewCell?

Is there a Keydown Event of a DataGridViewCell? What I'm trying to do is when a user is typing in a particular cell, he can press F1 for help of that particular column. And some Form will popup... What event it is? ...

Datagridview doesnt work!

Possible Duplicate: Datagridview doesnt work! I have written code to show records in a datagridview but it shows nothing. I have tried to debug & when it step into GetData function following codes Catch ex As Exception returnData = Nothing If connection.State = ConnectionState.Open Then con...

add datagridviewcolumn property designtime

hi all! I have this problem, I created my own datagridviewcolumn and I wish add some properties that you can change in designtime editing... here is my code: private int nMaxLength; [Description("Fondoscala valore"), Category("Sea")] public int MaxLength { get { return nMaxLength; } set { nMaxLength = value; } } and in fact is...

ConstraintException when filling a DataGridView from a SQL Server view

Hi all, I have a SQL Server view which does a simple join of two tables and returns some of the columns. Running this view in Management Studio does not cause any problems, the expected data (two rows) is returned. When I use this view as data source for my TableAdapter in Visual Studio, I get a ConstraintException saying "Failed to en...

Effectively highlighting column and row on a DataGridView as mouse moves

I am trying to highlight the row and column which the mouse is on. Essentially this means to change the background color of all the appropriate cells. Currently I am trying to do this in the MouseMove event. However, this is causing slow performance. I was suggested to use WPF for better performance, however I do not wish to go that rou...

Large data in a cell of DataGridView

Hi everyone, i want to display a large data in a cell of DataGridView as multiplelines to avoid the horizontalscroll. ...

Designer-editing DataSource property of a DataGridView within a UserControl

I have a custom UserControl that contains several child controls, amongst which is a DataGridView. I don't want to EnableDesignMode for any of the child controls, but instead have exposed and serialized their properties as needed. I'm stuck on DataGridView's DataSource property. Do I need to make a custom UITypeEditor and use reflection...

How do i save altered datagrid value into a datatable?

I have a dataset, and 2 datatables. Datatable1 = Combobox source (This will display a list of options) Datatable2 = DataGrid (This will display data relevant to the options in combo box) Submit Button (populate datagrid based on combo box selected value) When i select an item in combo box and click submit, it load up the relevant reco...