Index does not have a value datagridview
Add one more condition which is gridMappings.Rows.Count>0. Hide Expand Copy Code. private void gridMappings_RowsAdded(object� Gets the relative position of the band within the DataGridView control. The value of this property does not necessarily correspond to the current visual position� The row has been added to a DataGridView control, but the rowIndex value is not The row is not a shared row, but the rowIndex value does not match the row's Shared rows have Index values of -1, which prevents you from using the State� Hi all, I have one stock exchange API that returns data every second and Refresh() cell value not update. Now I need a solution to bind data in datagridview without write grid.Refresh(). In short update cell value, every second so what I need to do. Index, then after bind, set that value with DataGridView. 10 Dec 2014 dll Additional information: Index -1 does not have a value. Make sure that the maximum index on a list is less than the list size. Make sure the� 2 Dec 2008 after all, the Windows Forms DataGridView has CellClicked and ColumnHeaderMouseClick events (among many others). However, sadly this is not the case. The problem is that while we have access to the lement which was that's left to do is extract the cell's row and column indices, and cell value. I have discovered that if you add in . DataGridView.DataSource = Nothing DataGridView.Refresh() before resetting the grid to the collection (with the deleted item removed) DataGridView.DataSource = MyCollection It works like a charm. Still interested as to why you have to do this.
The row has been added to a DataGridView control, but the rowIndex value is not The row is not a shared row, but the rowIndex value does not match the row's Shared rows have Index values of -1, which prevents you from using the State�
I have a tab control which has 3 tab pages. On Second Tab Page I have ListView Control which has checkbox item list. Lets say its rooms list with check box. In third tab Page I have a datagridview control I want to display all the checked/selected rooms no and 0 value on price column. My task is to define rate of selected rooms from the list. My goal is to use it in a multithreaded environment. The datagridview is in a form in a separate thread, the table is in the main thread as is the data source. I am doing it this way so I can close or open the display window at any time and it is does not slow down the main application when running. As far as I understand, you don't have to populate BindingSource, you just have to populate the list it's bound to. That's the whole idea of binding. You bind your control to the data using bindingsource. And then. myBindingSource.DataSource = listItem; will do it. However, if I start without an initial xml, adding items is not a problem. But when I delete the last remaining item in the dgv, I get the following exception at the last line of Main() Index out of range Exception: {"Index -1 does not have a value."} Stack Trace Find answers to How to fix that stupid error - DataGridView System.IndexOutOfRangeException Index does not have a value ? from the expert community at Experts Exchange If Not DataGridView1.SelectedCells(counter).ColumnIndex = _ DataGridView1.Columns("Description").Index Then If Not value.Length = 0 Then SelectedCellTotal += Integer.Parse(value) End If End If End If End If Next ' Set the labels to reflect the current state of the DataGridView.
IndexOutOfRangeException: Index 0 does not have a value � c# datagridview bindingsource indexoutofboundsexception. I am getting one error�
However, if I start without an initial xml, adding items is not a problem. But when I delete the last remaining item in the dgv, I get the following exception at the last line of Main() Index out of range Exception: {"Index -1 does not have a value."} Stack Trace Find answers to How to fix that stupid error - DataGridView System.IndexOutOfRangeException Index does not have a value ? from the expert community at Experts Exchange If Not DataGridView1.SelectedCells(counter).ColumnIndex = _ DataGridView1.Columns("Description").Index Then If Not value.Length = 0 Then SelectedCellTotal += Integer.Parse(value) End If End If End If End If Next ' Set the labels to reflect the current state of the DataGridView. .Net DataGridView "Index 0 does not have a value." I am having trouble with a DataGridView. I have a collection of 3 Items bound to the grid, when trying to delete one of the items and reload the grid. Great explanation of the events. Just what I needed to understand. I come from a language where you had 1 event for this kind of thing and here we have 8, so, that's granular, maybe too granular for my simple app but I needed to know which event to code for and now I have an understanding of the vents so I can now decide what to do (PS, it's gonna be OnCellValidating).
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Index -1 does not have a value - DataGridView. .NET Framework Forums on Bytes. .Net DataGridView "Index 0 does not have a value." Click to share on: facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print After I clicked the Close button in the Controlbox (Top right on the form) the DataGridView gets cleared of data row by row and when all the rows have been cleared the following message appears: "Index 0 does not have a value". This exception is thrown even if I do not make any changes to the data that is bound to the DataGridView.
As far as I understand, you don't have to populate BindingSource, you just have to populate the list it's bound to. That's the whole idea of binding. You bind your control to the data using bindingsource. And then. myBindingSource.DataSource = listItem; will do it.
My goal is to use it in a multithreaded environment. The datagridview is in a form in a separate thread, the table is in the main thread as is the data source. I am doing it this way so I can close or open the display window at any time and it is does not slow down the main application when running.
2 Dec 2008 after all, the Windows Forms DataGridView has CellClicked and ColumnHeaderMouseClick events (among many others). However, sadly this is not the case. The problem is that while we have access to the lement which was that's left to do is extract the cell's row and column indices, and cell value. I have discovered that if you add in . DataGridView.DataSource = Nothing DataGridView.Refresh() before resetting the grid to the collection (with the deleted item removed) DataGridView.DataSource = MyCollection It works like a charm. Still interested as to why you have to do this. dgv.DataSource = myList; Everything is working fine except when I click on a row in DataGridView I'm getting following exception: Index -1 does not have a value. Here is stack trace (you can see that it happens in some internal DataGridView code): System.IndexOutOfRangeException: Index -1 does not have a value. I have a tab control which has 3 tab pages. On Second Tab Page I have ListView Control which has checkbox item list. Lets say its rooms list with check box. In third tab Page I have a datagridview control I want to display all the checked/selected rooms no and 0 value on price column. My task is to define rate of selected rooms from the list. My goal is to use it in a multithreaded environment. The datagridview is in a form in a separate thread, the table is in the main thread as is the data source. I am doing it this way so I can close or open the display window at any time and it is does not slow down the main application when running. As far as I understand, you don't have to populate BindingSource, you just have to populate the list it's bound to. That's the whole idea of binding. You bind your control to the data using bindingsource. And then. myBindingSource.DataSource = listItem; will do it.