Blazor Textfield Oninput User Typing Delay

Blazor Textfield Oninput User Typing Delay

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Blazor Textfield Oninput User Typing Delay
Tag : chash , By : user118656
Date : January 11 2021, 05:14 PM

I wish this help you Solution:
There is no single solution to your question. The following code is just one approach. Take a look and adapt it to your requirements. The code resets a timer on each keyup, only last timer raises the OnUserFinish event.
@using System.Timers;
<input type="text" @bind-value="Data" @bind-value:event="oninput" 

@code {
    public string Data { get; set; }   
    public string Data2 { get; set; }  
    private System.Timers.Timer aTimer;

    protected override void OnInitialized()
        aTimer = new System.Timers.Timer(1000);
        aTimer.Elapsed += OnUserFinish;
        aTimer.AutoReset = false;

    void HandleKeyUp(KeyboardEventArgs e)
        // remove previous one

        // new timer

    private void OnUserFinish(Object source, ElapsedEventArgs e)
        InvokeAsync( () =>
            Data2 = $"User has finished: {Data}";

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How do you check a checkbox once user starts typing in a textfield? And also uncheck the checkbox if textfield is empty

Tag : javascript , By : Comfly
Date : March 29 2020, 07:55 AM
will be helpful for those in need false and true are booleans, not strings, and as such just checking the values length compared against zero will give the same result, a boolean.
You should also be using the onkeyup event for this :
 <script type="text/javascript">
    function checkvalue(val) {
        document.getElementById('productCB').checked = val.value.trim().length > 0;
  <input type="checkBox" id="productCB" value="searchProduct" /> Product:
  <input type="text" id="productID" placeholder="Enter product here..." onkeyup="checkvalue(this)" />

Delay in occurring secured key while typing password in textfield

Tag : ios , By : mhedberg
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further In my project I have the password as textfield, I have made the textfield as secured, Still while typing the text, the user can see the text for few second, I have to restrict it, I have also tried with textfield.isSecureTextEntry its not working please give some suggestions , I might consider setting up a GCD in textFieldDidEndEditing.
-(void)textFieldDidEndEditing:(UITextField *)textField  
     double delayInSeconds = 2.0;    

     dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds 
       * NSEC_PER_SEC);   

     dispatch_after(popTime, dispatch_get_main_queue(), ^(void){ 
          textField.isSecureTextEntry = YES;  



Blazor server side oninput event causing error

Tag : chash , By : evegter
Date : March 29 2020, 07:55 AM
this will help Note you're binding value by @bind-Value="card.Number" instead of by @bind-value:oninput. The @bind-Value directive binds value when value changes (i.e. the onchange event). And the oninput event fires before onchange: when the first keystroke event fires, the card.Number is null because the @onchange event has not arrived yet.
In order to fix that issue, you need prevent card.Number is null when checking card.Number.Length == 4 otherwise it will throw a System.NullReferenceException when the first keystroke event fires:
private void FormatCreditCardNumber()
    if (card.Number.Length == 4)
    if (card.Number?.Length == 4)
        numberFormat = String.Empty;
        numberFormat = card.Number + "-";

formatting textfield while user is typing

Tag : objective-c , By : mtnmuncher
Date : March 29 2020, 07:55 AM

Blazor bind-value:event oninput

Tag : chash , By : Malikul
Date : January 02 2021, 06:48 AM
will help you If you need this for validation, see the answer for this:
How to make an EditForm Input that binds using oninput rather than onchange
@inherits MyInputTextCode;

<input type="text" id="@Id" class="@Class" @bind-value="CurrentValueAsString" @bind-value:event="oninput" />
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