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One Button is for deleting the selected row and other one is for updating or inserting new row. When i click update button i got this exception can u tell me why??? i am using form1 obj=new form1(); obj.refresh(); but it is not work…. Now, when you close the add data form, open the datagrid form again automatically. Regards, Arpan To add a reference in Visual C# # In Solution Explorer, right-click the project node and click Add Reference. However, for Button Click (on client click) write client confirmation javascript code. All your insertions, updates, and deletions will be effected by the single button.Data Grid View control is one of the coolest features of Dot Net Framework. # In the Add Reference dialog box, select the tab indicating the type of component you want to reference. Hello Rahim, Thanks for your code for update from Grid view to database…. Because i use a formula value Of Quantity In Database - value Of Quantity In System, it update properly and successful Here is my problem goes: Let's say i got a Data Grid View with Quantity column and the value of it is 50 (This make a Quantity value in Database become 950) and let's say customer want to add his Quantity from 50 to 150, so i change the value of Quantity in Data Grid View to 150 from 50, the Database should update based on the formula value Of Quantity In Database - value Of Quantity In System, and the Quantity in Database should have 850 in Quantity value (Because 1000 - 150), the Quantity value in database is 800 (Because first time i add is 50, so the Quantity in database is 950, next i add another 150 and the Quantity in database is 800), so it is like first entered value second entered value. I know my command is missing the "WHERE" clause, but i don't know what to put in the "WHERE" clause.Here is what i want: Whenever user edit the Quantity in Data Grid View, it should goes to this formula value Of Quantity In Database - value Of Quantity In System ------ (So, whenever user change the Quantity value in Data Grid View, let's say it change to 150 from 50, the Quantity in Database should recognized it and minus with current value of Quantity in Data Grid View (150), not the older one (50) Here is the of datagridview (photo) when i run the program: Here is the photo of my GUI in program: I want when the user select "ID 9" and click the "delete" button, it will delete the selected row also delete it at database. Here is the code that i have been doing right now (the following code is delete row in a single click) but why when i clicking the "delete" button, it is delete all records in the datagridview, but it does not updating to the database?

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If the values for the control come from user input, be sure to validate the values to reduce security vulnerabilities.You can use this control in Windows Form using Wizard or programmatically. Select the components you want to reference, and then click OK. But unfortunately when i debugging this code an error is coming ” System. Data Table’ is a ‘type’ but is used like a ‘variable’ ” can you please suggest that how can i improve that……. Add a Data Grid View control and two Buttons on a Form. This will be something like…(please check out code syntax) Integer i = Data Grid View1. Dynamic SQL generation for the Update Command is not supported against a Select Command that does not return any key column information………. my first form is datagridview …side buttons is.,edit, delete,and close…now i want add some details then click add button then open another form….insert the data from add form…add form close after inserted data…..i want automatic refresh the form1…… When you click add button , close the datagrid form, open up the add data form. Introduction A Data Grid View control can be used to display data from a database.A table can be displayed from a database in a Data Grid View, using the Data Adapter class and data logic.