converters

How to convert BASE64 string into Image with Flutter?

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There’s a simpler way using ‘dart:convert’ package Image.memory(base64Decode(base64String)); Implementation and some useful methods : import ‘dart:convert’; import ‘dart:typed_data’; import ‘package:flutter/widgets.dart’; Image imageFromBase64String(String base64String) { return Image.memory(base64Decode(base64String)); } Uint8List dataFromBase64String(String base64String) { return base64Decode(base64String); } String base64String(Uint8List data) { return base64Encode(data); }

How can doc/docx files be converted to markdown or structured text?

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Pandoc supports conversion from docx to markdown directly: pandoc -f docx -t markdown foo.docx -o foo.markdown Several markdown formats are supported: -t gfm (GitHub-Flavored Markdown) -t markdown_mmd (MultiMarkdown) -t markdown (pandoc’s extended Markdown) -t markdown_strict (original unextended Markdown) -t markdown_phpextra (PHP Markdown Extra) -t commonmark (CommonMark Markdown)

Conversion Error setting value for ‘null Converter’ – Why do I need a Converter in JSF?

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Introduction JSF generates HTML. HTML is in Java terms basically one large String. To represent Java objects in HTML, they have to be converted to String. Also, when a HTML form is submitted, the submitted values are treated as String in the HTTP request parameters. Under the covers, JSF extracts them from the HttpServletRequest#getParameter() which … Read more

How to boolean && two visibility converters

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You could use a MultiBinding together with a short, hand made IMultiValueConverter. Example: <StackPanel> <StackPanel.Resources> <local:MultiBooleanToVisibilityConverter x:Key=”Converter” /> </StackPanel.Resources> <CheckBox x:Name=”Box1″ /> <CheckBox x:Name=”Box2″ /> <TextBlock Text=”Hidden Text”> <TextBlock.Visibility> <MultiBinding Converter=”{StaticResource Converter}”> <Binding ElementName=”Box1″ Path=”IsChecked” /> <Binding ElementName=”Box2″ Path=”IsChecked” /> </MultiBinding> </TextBlock.Visibility> </TextBlock> </StackPanel> … and the converter … class MultiBooleanToVisibilityConverter : IMultiValueConverter { public … Read more

How to convert String List to String in flutter?

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if you know you have List<String> then you can use join() function provided by a flutter. var list = [‘one’, ‘two’, ‘three’]; var stringList = list.join(“”); print(stringList); //Prints “onetwothree” Simple and short. 😉 And you can use it like this: List<String> servicesList = [“one”, “Two”, “Thee”]; print(servicesList.join(“”));

How can I check if a string has a numeric value in it in Python? [duplicate]

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Use the .isdigit() method: >>> ‘123’.isdigit() True >>> ‘1a23′.isdigit() False Quoting the documentation: Return true if all characters in the string are digits and there is at least one character, false otherwise. For unicode strings or Python 3 strings, you’ll need to use a more precise definition and use the unicode.isdecimal() / str.isdecimal() instead; not … Read more

Using enum in ConverterParameter

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ArsenMkrt’s answer is correct, Another way of doing this is to use the x:Static syntax in the ConverterParameter <Button … Visibility=”{Binding Path=CurrentAuthenticationLevel, Converter={StaticResource AuthenticationToVisibility}, ConverterParameter={x:Static local:AuthenticationEnum.Administrator}}”/> And in the converter public class AuthenticationToVisibility : IValueConverter { public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { AuthenticationEnum authenticationEnum = (AuthenticationEnum)parameter; //… } }

How to save enum field in the database room?

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You can make a convert to each enum, like this: class Converters { @TypeConverter fun toHealth(value: String) = enumValueOf<Health>(value) @TypeConverter fun fromHealth(value: Health) = value.name } Or if you prefer store it as SQL integer, you can use ordinal too: class Converters { @TypeConverter fun toHealth(value: Int) = enumValues<Health>()[value] @TypeConverter fun fromHealth(value: Health) = value.ordinal … Read more

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)