Table of Contents 1. Display data in the DataGridView control 1. Direct programmatic access to SQL (1) Source code (2) Generate effect 2. Access SQL through EF entity model (1) Source code (2) Generate effect 2. Get the current cell in the DataGridView control 1. Direct programmatic access to SQL (1) Source code (2) Generating […]
Tag: datagrid
[Transfer] [C#] Hosting controls in Windows Forms DataGridView cells
using System; using System.Windows.Forms; public class CalendarColumn : DataGridViewColumn { public CalendarColumn() : base(new CalendarCell()) { } public override DataGridViewCell CellTemplate { get { return base.CellTemplate; } set { // Ensure that the cell used for the template is a CalendarCell. if (value != null & amp; & amp; !value.GetType().IsAssignableFrom(typeof(CalendarCell))) { throw new InvalidCastException(“Must be […]
Saving the datagrid after converting rows to columns
After rows and columns, the stored procedure of the query is 1 USE [APS_Future_FT] 2GO 3 /****** Object: StoredProcedure [dbo].[P_APS_H_InternalStandardCrudePrice] Script Date: 2013/11/7 21:27:23 ******/ 4 SET ANSI_NULLS ON 5GO 6 SET QUOTED_IDENTIFIER ON 7GO 8 — ============================================= 9 — Author: <Author,,Name> 10 — Create date: <Create Date,,> 11 — Description: <Description,,> 12 — ============================================= […]
EasyUI datagrid dynamically loads json data
I recently worked on a project where the requirement was that two tables could find more than 10 different result sets. If you want to use only one table to display all the results differently, then you must use fixed field names. If you want to dynamically load the data returned from the background to […]
C# implements saving data in DataGridView to CSV and Excel
1. Save to CSV public static bool dataGridViewToCSV(DataGridView dataGridView) { if (dataGridView.Rows.Count == 0) { MessageBox.Show(“No data to export!”, “Prompt”, MessageBoxButtons.OK, MessageBoxIcon.Information); return false; } SaveFileDialog saveFileDialog = new SaveFileDialog(); saveFileDialog.Filter = “CSV files (*.csv)|*.csv”; saveFileDialog.FilterIndex = 0; saveFileDialog.RestoreDirectory = true; saveFileDialog.CreatePrompt = true; saveFileDialog.FileName = null; saveFileDialog.Title = “save”; if (saveFileDialog.ShowDialog() == DialogResult.OK) { […]
The datagrid in Easyui embeds the select drop-down box
Question: I want to embed a select drop-down box in datagrid and obtain the selected value of each drop-down box in each row of data selected by datagrid when submitting the form. Solution: Among them, economicIssuesSelect uses the drop-down box, focusing on initEconomicIssues(row) method. The method here needs to pass row $(‘#queryPcpTable’).datagrid({<!– –> title: ‘pcp […]
DataGridView bound data update
1. Create data class using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace DataGridViewTest {<!– –> internal class UserData {<!– –> public string Name {<!– –> get; set; } public int Weight {<!– –> get; set; } public int Height {<!– –> get; set; } } } 2. DataGridView data operations using System; […]
C# – DataGridView control for table development
1. Summary Using the DataGridView control, you can display and edit tabular data from many different types of data sources. The DataGridView control provides a customizable table for displaying data. The DataGridView class allows customization of cells, rows, columns, and borders by using properties such as DefaultCellStyle, ColumnHeadersDefaultCellStyle, CellBorderStyle, and GridColor. With or without data […]
WPF DataGrid freezes right column
We know that it is very simple to freeze the left column in WPF. Microsoft provides us with the FrozenColumnCount attribute. Its value represents how many columns you want to freeze from left to right, as shown in the following figure: But this is often not what we want. We are used to freezing the […]
Halcon HSmartWindow+WPF implements template matching and uses DataGrid control for data display
For example: Use HSmartWindow to draw ROI and train and find templates Use WPF’s DataGrid for simple data display (dependency properties) Foreground code: <Window xmlns=”http://schemas.microsoft.com/winfx/2006/xaml/presentation” xmlns:x=”http://schemas.microsoft.com/winfx/2006/xaml” xmlns:d=”http://schemas.microsoft.com/expression/blend/2008″ xmlns:mc=”http://schemas.openxmlformats.org/markup-compatibility/2006″ xmlns:local=”clr-namespace:DepwndencyProp” xmlns:HalconDotNet=”clr-namespace:HalconDotNet;assembly=halcondotnet” x:Class=”DepwndencyProp.MainWindow” mc:Ignorable=”d” Title=”MainWindow” Height=”450″ Width=”800″> <Grid> <Grid. RowDefinitions> <RowDefinition Height=”5*”/> <RowDefinition Height=”*”/> </Grid. RowDefinitions> <Grid Grid. Row=”0″> <Grid. ColumnDefinitions> <ColumnDefinition Width=”*”/> <ColumnDefinition Width=”2*”/> </Grid. ColumnDefinitions> […]