用於更新和刪除網格視圖中的行的代碼

Question

什么是直接在網絡表單中更新和保存網格視圖數據的代碼。這是我的代碼。幫我刪除記錄和更新記錄。

   protected void CancelRecord(object sender, GridViewCancelEditEventArgs e)
{
    gridRegistrationTableDetails.EditIndex = -1;
    BindData();
}
protected void EditRecord(object sender, GridViewEditEventArgs e)
{
    gridRegistrationTableDetails.EditIndex = e.NewEditIndex;
    BindData();
}
protected void UpdateRecord(object sender, GridViewUpdateEventArgs e)
{

}
protected void DeleteRecord(object sender, GridViewDeleteEventArgs e)
{}

我需要編輯四列Emp名稱，Emp地址，emp dept，emp mail.emp ID是主鍵.pls幫我這個..

Answer 1

如果您正在使用數據庫，則為Update和Delete創建函數例如：Public void Update（DataClass dataclass）{...} public void Delete（int Id）{...}

在apsx頁面中寫下以下代碼

                <Columns>
                    <asp:CommandField ShowDeleteButton="True" ShowEditButton="True" />
                </Columns>

            </asp:GridView>
            <asp:ObjectDataSource ID="ObjectDataSource1" runat="server" 
                DataObjectTypeName="DataClass" DeleteMethod="Delete" 
                TypeName="YourServiceClass" UpdateMethod="Update">
                <DeleteParameters>
                    <asp:Parameter Name="id" Type="Int32" />
                </DeleteParameters>
            </asp:ObjectDataSource>

Answer 2

將此代碼放在gridview Rowdeleting事件中

GridViewRow row = (GridViewRow)gv_Type.Rows[e.RowIndex];
d.con_Open();
SqlCommand cmd = new SqlCommand("Delete from tbl_Category where Catno=" + Convert.ToInt32(gv_Type.Rows[e.RowIndex].Cells[1].Text) + "", d.con);
cmd.ExecuteNonQuery();
d.con_Close();