FredGrit

2024年9月14日

WPF ListBox ListBox.ItemTemplate DataTemplate use Customize Control ImgUrl="{Binding DataContext.ImageUrl,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type ListBoxItem}}}

摘要： <ListBox ItemsSource="{Binding BooksCollection,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"> <ListBox.ItemTemplate> <DataTemplate> <Viewbox> <loc 阅读全文

posted @ 2024-09-14 00:00 FredGrit 阅读(49) 评论(0) 推荐(0)

2024年9月13日

WPF Datagrid DataGridTemplateColumn.CellTemplate local:ImageTextblock ImgUrl="{Binding DataContext.ImageUrl,RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type DataGridRow}}}

摘要： DataGridTemplate.CellTemplate contains one datatemplae will display the customoized control,the key located at the custom control's dependency propert 阅读全文

posted @ 2024-09-13 23:52 FredGrit 阅读(44) 评论(0) 推荐(0)

C# mysql Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.

摘要： add default command timeout=0 as below string connStr = "Server=localhost;database=mydb;username=root;pwd=root;default command timeout=0"; 阅读全文

posted @ 2024-09-13 14:29 FredGrit 阅读(76) 评论(0) 推荐(0)

2024年9月12日

Mysql Non cluster combined fields select where order by field different time cost

摘要： use mydb; drop table if exists t1; create table t1 (id int auto_increment primary key, firstname varchar(100) not null default '', lastname varchar(10 阅读全文

posted @ 2024-09-12 11:49 FredGrit 阅读(44) 评论(0) 推荐(0)

2024年9月11日

WPF Application.Current.Properties[key]=value

摘要： using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows; using System 阅读全文

posted @ 2024-09-11 14:52 FredGrit 阅读(60) 评论(0) 推荐(0)

2024年9月10日

C# Console application start wpf window via Application, Encapsulates a Windows Presentation Foundation (WPF) application

摘要： using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows; using System 阅读全文

posted @ 2024-09-10 21:44 FredGrit 阅读(54) 评论(0) 推荐(0)

C# console application main method new and start wpf window application

摘要： 1.New Console application; 2.Add reference,PresentationCore and WindowsBase 3. using System; using System.Collections.Generic; using System.Linq; usin 阅读全文

posted @ 2024-09-10 21:36 FredGrit 阅读(34) 评论(0) 推荐(0)

WPF datagrid datagridtemplatecolumn image mouseenter show the image in big window

摘要： <DataGridTemplateColumn> <DataGridTemplateColumn.CellTemplate> <DataTemplate> <Image Source="{Binding ImgUrl}" Width="200" Height="500"> <behavior:Int 阅读全文

posted @ 2024-09-10 20:32 FredGrit 阅读(50) 评论(0) 推荐(0)

C# stop thread after specified timespan

摘要： using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading; using System.Threading.Tasks; namespace 阅读全文

posted @ 2024-09-10 18:51 FredGrit 阅读(41) 评论(0) 推荐(0)

2024年9月9日

C# process =An error occurred trying to start process with working directory The specified executable is not a valid application for this OS platform.

摘要： using System.Diagnostics; // See https://aka.ms/new-console-template for more information Console.WriteLine("Hello, World!"); string path= @"..\..\..\ 阅读全文

posted @ 2024-09-09 22:13 FredGrit 阅读(557) 评论(0) 推荐(0)

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