DataGridView 单元格编辑和更新数据库 (C#)

Question

我有一个功能可以编辑我的 dgv 中的单元格。这就是问题所在。我只能编辑一个单元格。

到目前为止，这是我的代码：

        private void datagridview1_CellEndEdit(object sender, DataGridViewCellEventArgs e)
        {
        Connection();
        sqlconnection.Open();

        this.datagridview1.Rows[e.RowIndex].Selected = true;
        this.rowIndex1 = e.RowIndex;
        this.datagridview1.CurrentCell = this.datagridview1.Rows[e.RowIndex].Cells[1]; //1 = only quantity can be edited, 0 = only item can be edited

        sqlcmd = new SqlCommand("UPDATE inventory_table SET item = @item, quantity = @quantity WHERE id= " + this.datagridview1.Rows[this.rowIndex1].Cells["id"].Value, sqlconnection);
        sqlcmd.Parameters.AddWithValue("@item", this.datagridview1.Rows[this.rowIndex1].Cells["item1"].Value);
        sqlcmd.Parameters.AddWithValue("@quantity", this.datagridview1.Rows[this.rowIndex1].Cells["quantity1"].Value);
        sqlcmd.ExecuteNonQuery();

        sqlconnection.Close();
        }

我错过了什么？我该怎么做才能编辑多个 dgv 单元格并让它们在数据库中更新？

Answer 1

我认为问题是由于使用了错误的事件。您似乎想要在用户完成对行的编辑时执行更新。

但是您的代码存在于任何单元格完成编辑后触发的事件中。我不能确定你想要什么事件。这取决于您的规格。

但我敢打赌 RowValidated event will meet your needs. If not, check out the RowStateChanged 事件。（并尝试该事件的示例代码。它应该可以帮助您了解事件何时触发。）

Answer 2

you can't update or delete multiple rows in gridview using gridview editing or deleting method, i believe there are no default events in gridview to update or delete multiple records.

but you can achieve this by using another procedure:

1>you can take a button in gridview footer or outside the grid view,after putting all updated value to the grid cell write code on footer_button click to update all records in the gridview. 2>you can use jQuery/ajax control on grid to update grid record on textbox_leave event.

您可以寻找解决方案的一些示例

DataGridView 单元格编辑和更新数据库 (C#)

DataGridView Cell Editing and Updating DB (C#)

c#

sql-server

datagridview

winforms