input

问题 Hello i have 2 variables of type int that i would like to bind to the min and max values of an input of type time . How can i do this? I do not know what to place in the bind field since there are 2 different variables. Also there is the min and max attributes. <input type="time" min="@model.min" max="@model.max" bind=?/> What should i put in the bind ? Update On a more thoroughly analysis i decided i will need 2 variables of type Timespan and i will bind these to 2 inputs of type time . 回答1:

问题 Is it possible to have 2 different font sizes in one input placeholder in CSS? something like this design: In regular html you can make it with span,:before,&:after and etc. but in input you cant make all this things so i want to understand if its possible... thanks 回答1: To apply different styles in the same placeholder is not possible. What you can do however is either use pseudo elements or a div which behaves as a placeholder and hide/show it when the input is focussed. This might help: $(

问题 Is it possible to have 2 different font sizes in one input placeholder in CSS? something like this design: In regular html you can make it with span,:before,&:after and etc. but in input you cant make all this things so i want to understand if its possible... thanks 回答1: To apply different styles in the same placeholder is not possible. What you can do however is either use pseudo elements or a div which behaves as a placeholder and hide/show it when the input is focussed. This might help: $(

问题 I'm pretty sure it's not possible to do this but I'm still asking for it. Is there a way for a user to insert a null (or an undefined) value into an html text input? I need to distinguish between a null value and an empty string and I would like to allow the user to set this value into a single input. For what I can see across the web, the standard solution to this problem is to match the text input with a checkbox that tell if the value is null or not. From my understanding, the limitation

问题 I'm pretty sure it's not possible to do this but I'm still asking for it. Is there a way for a user to insert a null (or an undefined) value into an html text input? I need to distinguish between a null value and an empty string and I would like to allow the user to set this value into a single input. For what I can see across the web, the standard solution to this problem is to match the text input with a checkbox that tell if the value is null or not. From my understanding, the limitation

问题 I'm pretty sure it's not possible to do this but I'm still asking for it. Is there a way for a user to insert a null (or an undefined) value into an html text input? I need to distinguish between a null value and an empty string and I would like to allow the user to set this value into a single input. For what I can see across the web, the standard solution to this problem is to match the text input with a checkbox that tell if the value is null or not. From my understanding, the limitation

问题 I am building a form using a model form with Django and to override the actual design for the input file, I set the input to hidden and used the label instead as a button to upload the image for the field avatar in my code, this was working fine (used this solution: https://youtu.be/4p2gTDZKS9Y) but the problem that I have faced is the field avatar is required, as the input is hidden, the validation error is not appearing as it is also hidden with the input is there any way to show the

问题 I'm working on sensor data acquisition in Android (Jelly Bean on Samsung Galaxy S3). I'm new to Android/Linux internals. I'm trying to read Android sources on how the sensor samples rise from the drivers to userspace. As a reference take a look here. I can go all the way from the SensorManager down to the SensorService. I can see the kernel module loading infrastructure, the registration of the event input device and the input_report_rel() function calls in the drivers (e.g. the open-sourced

问题 I'm working on sensor data acquisition in Android (Jelly Bean on Samsung Galaxy S3). I'm new to Android/Linux internals. I'm trying to read Android sources on how the sensor samples rise from the drivers to userspace. As a reference take a look here. I can go all the way from the SensorManager down to the SensorService. I can see the kernel module loading infrastructure, the registration of the event input device and the input_report_rel() function calls in the drivers (e.g. the open-sourced

问题 I have 2 applications, A & B. A calls B within a Process. B do some stuffs like Console.WriteLine and Console.ReadLine Thanks to this MSDN Article, I manage somehow to redirect the output of B and to feed its input as well. What I don't manage to do , is to have the Console.ReadKey function in B work. I made a try catch block arround this function and I got this error message: Cannot read keys when either application does not have a console, or when console input has been redirected from a