I have web page and My web page is left without any reaction after the website is launched and the page is locked. Codes are as bellow:

@attribute [Authorize]
@inject IReciption _Reception;

<section >
    <div >
        <div >
            <div >
                <div >
                    <div >
                        <h3>Reception</h3>
                        @*<h3>RegReception<InfoBoxComponent StrMessage="@Message1"></InfoBoxComponent></h3>*@
                    </div>
                    <div >
                        <div >
                            <ul>
                                <li>
                                    <div>
                                        <input type="text" @bind-value="@StrSerialNumber" placeholder="SerialNumber">
                                    </div>
                                </li>
                                <li>
                                    @if (!IsSaveLoading)
                                    {
                                        <button  @onclick="(() => CheckTheSerial())" style="margin-top:15px;">Testing</button>
                                    }
                                    else
                                    {
                                        <button  style="margin-top:15px;">
                                            <i ></i> Searching
                                        </button>
                                    }

                                </li>
                                @if (prodSrCls.Responses.Statue != LosacoWeb.Shared.Enumes.StatueResponse.NoStatus)
                                {
                                    @if (prodSrCls.Responses.Statue == LosacoWeb.Shared.Enumes.StatueResponse.Success)
                                    {
                                        <br />
                                        <li><h4><b >Group:</b> @prodSrCls.GoodsGroupItem_Name</h4></li>
                                        <br />
                                        <li><h4><b >Model:</b> @prodSrCls.Goods_GoodsName </h4></li>
                                    }
                                    @if (prodSrCls.Responses.Statue == LosacoWeb.Shared.Enumes.StatueResponse.Failed)
                                    {
                                        <br />
                                        <li>
                                            <h3>
                                                <span ></span><b >
                                                    Serial Is not Correct
                                                </b>
                                            </h3>
                                        </li>
                                    }
                                }
                            </ul>
                        </div>
                    </div>
                </div>
            </div>
            <!-- end .col-md-6 -->
        </div>
        <!-- end .row -->
    </div>
    <!-- end .container -->
</section>

And C# Programming Code Part Is As Bellow:

public bool IsSaveLoading = false;
    private string serial;
    public String StrSerialNumber
    {
        get
        {
            return serial;
        }
        set
        {

            serial = value;
             TextChangedEvetFotCleaning();
        }
    }
ProdSerialClasses prodSrCls
            = new ProdSerialClasses();
    [Parameter]
    public EventCallback<ProdSerialClasses> OnFindSerial { get; set; }
    protected override async Task OnInitializedAsync()
    {
        IsSaveLoading = false;
    }

My answer is that how I can resolve my problem. I have to use this code in a online shop project. My other pages work fine. but this page become lock after run.

CodePudding user response：

Hi. Change second part to :

public bool IsSaveLoading = false;
public String StrSerialNumber = "0";
ProdSerialClasses prodSrCls = new ProdSerialClasses();
[Parameter]
public EventCallback<ProdSerialClasses> OnFindSerial { get; set; }
protected override async Task OnInitializedAsync()
{
    IsSaveLoading = false;
}

you must add value to you variable StrSerialNumber = "0" because in can cause of error with null value. I hope your code problem is solved this way. You should also check for prolapse before using prodSrCls. If it is not null, you can use it. If you do not bet, you may still get the error.

@if(prodSrCls != null)
{
   // your codes . . .
}

Please do not forget to confirm the answer.