See the following table to select the correct download
| OS | Development Environment | .NET Core SDK |
|---|---|---|
| Windows | Visual Studio 2019 version 16.6 | 3.1.302 |
| Windows | Visual Studio 2019 version 16.4 | 3.1.106 |
| MacOS | Visual Studio for Mac | Visual Studio for Mac .NET Core Support |
As we’ve been moving forward on the Outdated Answers project, one of the things that’s been clear is that on questions with multiple answers, we need a way to surface newer answers that may be more current, while reducing the visibility of older answers that may no longer be correct or relevant
A .NET guideline specifies that an application should never throw a NullReferenceException. However, many applications and libraries do. The NullReferenceException is the most common exception happening. That’s why C# 8 tries to get rid of it. With C# 8, reference types are not null be default. This is a big change, and a great feature. However, what about all the legacy code? Can old libraries be used with C# 8 applications, and can C# 7 applications make use of C# 8 libraries?
This article demonstrates how C# 8 allows mixing old and new assemblies.
Manage events entities is pretty easy. You define few informations like a subject, a content, and maybe the most important, dates (a start and a end date of course).
You’re ready to create calendar or timeline features. Baooom! Now you need to be able to create recurrent event ! And everything is going to break.
I’ve work on this kind of feature, and here are my small advices
Windows 10 has something called Windows Subsystem for Linux and this something enables us to run Linux applications on Windows 10 using Linux without need for Hyper-V or other virtual machines. When building multi-platform applications like my open-source TemperatureStation solution then having Linux right there for testing comes very handy. This blog post shows how to get Linux running on Windows, how to install .NET Core and how to run web applications on Linux.
PdfReport pdfrpt = new PdfReport();
pdfrpt.DocumentPreferences(doc =>
{
doc.RunDirection(PdfRunDirection.RightToLeft);
doc.Orientation(PageOrientation.Landscape);
doc.PageSize(PdfPageSize.A4);
doc.DocumentMetadata(new DocumentMetadata { Author = "Hovze", Application = "PdfRpt", Keywords = "Report", Subject = "Test Rpt", Title = "Report" });
doc.PrintingPreferences(new PrintingPreferences
{
ShowPrintDialogAutomatically = true
});
})
.DefaultFonts(fonts =>
{
fonts.Path(fontPath + "\\BNAZANIN.ttf", fontPath + "\\BNAZNNBD.ttf");
fonts.Size(13);
})
.PagesFooter(footer =>
{
footer.DefaultFooter(PersianDate.ToPersianDateTime(DateTime.Now, "/", false, false));
})
.PagesHeader(header =>
{
header.CustomHeader(new CustomHeader { Name=Studentdt.Rows[0][1].ToString(),Family= Studentdt.Rows[0][2].ToString(),parvande= Studentdt.Rows[0][3].ToString(),tavalod= Studentdt.Rows[0][5].ToString(),shsh= Studentdt.Rows[0][6].ToString(),sodor= Studentdt.Rows[0][7].ToString(),codeMelli= Studentdt.Rows[0][8].ToString(),codeTahsili= Studentdt.Rows[0][0].ToString(),taahol=Studentdt.Rows[0][22].ToString(), PdfRptFont = header.PdfFont ,_imagePath=imgPath,_imageStud=stdImage});
})
.MainTableTemplate(template =>
{
template.BasicTemplate(BasicTemplate.SilverTemplate);
})
.MainTablePreferences(table =>
{
table.ColumnsWidthsType(TableColumnWidthType.Relative);
table.NumberOfDataRowsPerPage(0);
table.GroupsPreferences(new GroupsPreferences
{
GroupType = GroupType.HideGroupingColumns,
RepeatHeaderRowPerGroup = true,
ShowOneGroupPerPage = true,
SpacingBeforeAllGroupsSummary = 5f
});
})
.MainTableDataSource(dataSource =>
{
dataSource.DataTable(dt);
})
.MainTableSummarySettings(summarySettings =>
{
summarySettings.PreviousPageSummarySettings("نقل از صفحه قبل");
})
.MainTableColumns(columns =>
{
columns.AddColumn(column =>
{
column.PropertyName("سال");
column.CellsHorizontalAlignment(PdfRpt.Core.Contracts.HorizontalAlignment.Center);
column.IsVisible(true);
column.Order(0);
column.Width(2);
column.HeaderCell("سال تحصیلی");
});
columns.AddColumn(column =>
{
column.PropertyName("نیم سال");
column.CellsHorizontalAlignment(PdfRpt.Core.Contracts.HorizontalAlignment.Left);
column.IsVisible(true);
column.Order(1);
column.Width(1);
column.HeaderCell("نیم سال");
});
columns.AddColumn(column =>
{
column.PropertyName("پایه");
column.CellsHorizontalAlignment(PdfRpt.Core.Contracts.HorizontalAlignment.Left);
column.IsVisible(true);
column.Order(2);
column.Width(1);
column.HeaderCell("پایه");
});
columns.AddColumn(column =>
{
column.PropertyName("درس");
column.CellsHorizontalAlignment(PdfRpt.Core.Contracts.HorizontalAlignment.Left);
column.IsVisible(true);
column.Order(3);
column.Width(1);
column.HeaderCell("درس");
});
for (int i = 6; i < countScore + 6; i++)
{
columns.AddColumn(column =>
{
column.PropertyName(dt.Columns[i].ToString());
column.CellsHorizontalAlignment(PdfRpt.Core.Contracts.HorizontalAlignment.Left);
column.IsVisible(true);
column.Order(i - 2);
column.Width(1);
column.HeaderCell(dtTitle.Rows[0][i - 5].ToString());
column.CalculatedField(
list =>
{
nimsal = list.GetValueOf("نیم سال").ToString();
if (nimsal == "دوم")
{
if (k == 13 + countScore)
k = 13;
//return list[i+8].
k++;
return list[k].PropertyValue.ToString();
}
else
{
if (m == 5 + countScore)
m = 5;
m++;
return list[m].PropertyValue.ToString(); ;
}
});
});
}
columns.AddColumn(column =>
{
column.PropertyName("FinalScore1");
column.CellsHorizontalAlignment(PdfRpt.Core.Contracts.HorizontalAlignment.Left);
column.IsVisible(true);
column.Order(countScore + 4);
column.Width(1);
column.HeaderCell("نمره نهایی نیم سال 1");
});
columns.AddColumn(column =>
{
column.PropertyName("t_term1");
column.CellsHorizontalAlignment(PdfRpt.Core.Contracts.HorizontalAlignment.Left);
column.IsVisible(true);
column.Order(countScore+5);
column.Width(1);
column.HeaderCell("نمره تجدیدی نیم سال 1");
});
columns.AddColumn(column =>
{
column.PropertyName("t_term11");
column.CellsHorizontalAlignment(PdfRpt.Core.Contracts.HorizontalAlignment.Left);
column.IsVisible(true);
column.Order(countScore + 6);
column.Width(1);
column.HeaderCell("نمره استادیاری ترم 1");
});
columns.AddColumn(column =>
{
column.PropertyName("FinalScore2");
column.CellsHorizontalAlignment(PdfRpt.Core.Contracts.HorizontalAlignment.Left);
column.IsVisible(true);
column.Order(countScore + 7);
column.Width(1);
column.HeaderCell("نمره نهایی نیم سال 2");
});
columns.AddColumn(column =>
{
column.PropertyName("t_term2");
column.CellsHorizontalAlignment(PdfRpt.Core.Contracts.HorizontalAlignment.Left);
column.IsVisible(true);
column.Order(countScore + 8);
column.Width(1);
column.HeaderCell("نمره تجدیدی نیم سال 2");
});
columns.AddColumn(column =>
{
column.PropertyName("t_term22");
column.CellsHorizontalAlignment(PdfRpt.Core.Contracts.HorizontalAlignment.Left);
column.IsVisible(true);
column.Order(countScore + 9);
column.Width(1);
column.HeaderCell("نمره استادیاری نیم سال 2");
});
columns.AddColumn(column =>
{
column.PropertyName("tabestan");
column.CellsHorizontalAlignment(PdfRpt.Core.Contracts.HorizontalAlignment.Left);
column.IsVisible(true);
column.Order(countScore + 10);
column.Width(1);
column.HeaderCell("نمره تابستان");
});
columns.AddColumn(column =>
{
column.PropertyName("Ghabol");
column.CellsHorizontalAlignment(PdfRpt.Core.Contracts.HorizontalAlignment.Left);
column.IsVisible(true);
column.Order(countScore + 11);
column.Width(1);
column.HeaderCell("قبول");
});
});
return pdfrpt.MainTableEvents(events =>
{
events.DataSourceIsEmpty(message: "داده ای برای نمایش وجو د ندارد");
events.MainTableAdded(args =>
{
var taxTable = new PdfPTable(1); // Create a clone of the MainTable's structure
taxTable.RunDirection = 3;
//taxTable.SetWidths(new float[] { 3, 3, 3 });
taxTable.WidthPercentage = 100f;
taxTable.SpacingBefore = 10f;
taxTable.AddSimpleRow(
(data, cellProperties) =>
{
data.Value = "مهر و امضای مدیر";
cellProperties.ShowBorder = false;
cellProperties.HorizontalAlignment = HorizontalAlignment.Left;
cellProperties.PdfFont = args.PdfFont;
});
args.PdfDoc.Add(taxTable);
});
})
.Export(export =>
{
})
.Generate(data => data.AsPdfFile(fo.Name/*string.Format("{0}\\RptCalculatedFieldsSample-{1}.pdf", Application.StartupPath, Guid.NewGuid().ToString("N")))*/));
} Web application development has evolved with the rise of new technologies and frameworks. Two of the most popular technologies for building interactive web applications are Blazor and React. In this article, we will compare Blazor and React and highlight their differences with examples.
NativeScript یک فریمورک متن باز برای ساخت برنامه‌های نیتیو موبایل با جاوا اسکریپت است.
Ionic فریمورک مبتنی بر Angular، به صورت متن باز برای توسعه نرم افزار تلفن همراه بکار می‌رود که باعث می‌شود برنامه‌های نیتیو و پیشرفته وب با تکنولوژی‌های بالا ساخته شود.
React Native یک فریمورک جاوا اسکریپت برای ساخت برنامه‌های تلفن همراه نیتیو است که از فریمورک React استفاده می‌کند.
انتخاب یکی از این 3 گزینه در دنیای صنعت رو به رشد امروز دشوار است.
<?xml version="1.0"?>
<configuration>
<system.webServer>
<rewrite>
<rules>
<rule name="React Routes" stopProcessing="true">
<match url=".*" />
<conditions logicalGrouping="MatchAll">
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
</conditions>
<action type="Rewrite" url="/index.html" />
</rule>
</rules>
</rewrite>
</system.webServer>
</configuration>