Microsoft.Net Developer

React Native - Call API on Button Click

import React from 'react';
import { View, Text, Button, TouchableOpacity,Alert }from 'react-native';
const App = () => {
 
 const handleLogin = async() => {
  let resp= await fetch('https://api.demo.com/api/Data/GetDestination');
  let respjson = await resp.json();
  console.log(respjson);
  Alert.alert("msg", "123");
}
   
    return(
      <View>
        <Text style={{fontSize:70}}>
       Call Api
        </Text>    
        <Button onPress={handleLogin}
          title="Learn More"
          color="#841584"
          accessibilityLabel="Learn more about this purple button"
        />

      <TouchableOpacity>
        <Text onPress={handleLogin}>Login</Text>
      </TouchableOpacity>

      </View>
    )
  }

export default App

docker build sh: react-scripts: not found

Issue

docker build sh: react-scripts: not found

Solution

Deleting package-lock.json and re-installing packages with npm install before building the container solved the issue for me.

Hope this will help you and save your time.

Enjoy !!!

Data is Null. This method or property cannot be called on Null values

Issue:

Data is Null. This method or property cannot be called on Null values

Solution:

For columns that are nullable in your DB tables:

Wrong

public string Memo { get; set; }

Correct:

public string? Memo { get; set; }

Hope this will help you and save your time.

Enjoy !!!

The term 'New-AzResourceGroup' is not recognized as the name of a cmdlet, function, script fiel or operable program.

Issue:

New-AzResourceGroup : The term 'New-AzResourceGroup' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and

try again.

At line:1 char:1

+ New-AzResourceGroup

+ ~~~~~~~~~~~~~~~~~~~

+ CategoryInfo : ObjectNotFound: (New-AzResourceGroup:String) [], CommandNotFoundException

+ FullyQualifiedErrorId : CommandNotFoundException

Solution:

You need to install the Azure Powershell module:

You can look for just the one for this command:

Install-Module -Name Az.Resources -AllowClobber -Scope CurrentUser

Or all of them:

Install-Module -Name Az -AllowClobber -Scope CurrentUser

Hope this will help you and save your time.

Enjoy !!!

SQL : Search text from all Tables of a database in SQL Server

Here is the store procedure which will search text from all the tables of a current database in microsoft sql server.

Store Procedure


CREATE PROC SearchAllTables ( @SearchStr nvarchar(100) ) AS 
BEGIN 
    
CREATE TABLE #Results (ColumnName nvarchar(370), ColumnValue nvarchar(3630)) 

SET NOCOUNT ON 

DECLARE @TableName nvarchar(256), 
        @ColumnName nvarchar(128), 
        @SearchStr2 nvarchar(110) 
        
SET @TableName = '' 
SET @SearchStr2 = QUOTENAME('%' + @SearchStr + '%','''') 

WHILE @TableName IS NOT NULL 
BEGIN 
     SET @ColumnName = '' 
     SET @TableName = ( SELECT MIN(QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME)) 
                        FROM INFORMATION_SCHEMA.TABLES 
                        WHERE TABLE_TYPE = 'BASE TABLE' 
                              AND QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME) > @TableName 
                              AND OBJECTPROPERTY( OBJECT_ID( QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME) ), 'IsMSShipped' ) = 0 
                      ) 
                              
 WHILE (@TableName IS NOT NULL) AND (@ColumnName IS NOT NULL) 
 BEGIN 
      SET @ColumnName = ( SELECT MIN(QUOTENAME(COLUMN_NAME)) 
                          FROM INFORMATION_SCHEMA.COLUMNS 
                          WHERE TABLE_SCHEMA = PARSENAME(@TableName, 2) 
                                AND TABLE_NAME = PARSENAME(@TableName, 1) 
                                AND DATA_TYPE IN ('char', 'varchar', 'nchar', 'nvarchar') 
                                AND QUOTENAME(COLUMN_NAME) > @ColumnName ) 
       IF @ColumnName IS NOT NULL 
       BEGIN 
             INSERT INTO #Results 
             EXEC ( 'SELECT ''' + @TableName + '.' + @ColumnName + ''', LEFT(' + @ColumnName + ', 3630) FROM ' + @TableName + ' (NOLOCK) ' + ' WHERE ' + @ColumnName + ' LIKE ' + @SearchStr2 ) 
       END 
 END 
 END 
 
 SELECT ColumnName, ColumnValue FROM #Results 
 
 END

How to use SP

exec SearchAllTables 'myserchtext'

Hope this will help you and save your time.

Enjoy !!!

Error : Could not find a part of the path 'bin\roslyn\csc.exe'

Error


[error]C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\MSBuild\

Microsoft\VisualStudio\v16.0\Web\Microsoft.Web.Publishing.targets(2601,5): 

Error : Copying file bin\roslyn\csc.exe to 

obj\Release\Package\PackageTmp\bin\roslyn\csc.exe failed. 

Could not find a part of the path 'bin\roslyn\csc.exe'.

Solution


run this in the Package Manager Console:

Update-Package Microsoft.CodeDom.Providers.DotNetCompilerPlatform -r

Hope this will help you and save your time.

Enjoy !!!

Angular 6 : API Get and Post Method

Get


import { Injectable } from '@angular/core';
import { environment } from 'src/environments/environment';
import { ProductSearch } from '../Model/CountrySearch'; 
import { TokenParams } from '../Model/TokenParams';
import { Http, Headers } from '@angular/http';
import { Observable } from 'rxjs';

@Injectable()
export class CountrySearchService {
  user = new TokenParams();
 

  constructor(private http: Http) {
    this.user = JSON.parse(localStorage.getItem('loggedInUser'));
  }
  
   getCountryDetail() : Observable<CountrySearch[]>
   {
    
    var headersAPI = new Headers();
    headersAPI.append('Authorization' , 'Bearer ' + this.user.access_token);

    return this.http.get(environment.apiUrl +  environment.countrysearch, 
         
      {headers : headersAPI}).map(res => res.json()); 
  }
  
}

POST


import { Injectable } from '@angular/core';
import { environment } from 'src/environments/environment';
import { ProductSearch } from '../Model/CountrySearch'; 
import { TokenParams } from '../Model/TokenParams';
import { Http, Headers } from '@angular/http';
import { Observable } from 'rxjs';

@Injectable()
export class CountrySearchService {
  user = new TokenParams();
 

  constructor(private http: Http) {
    this.user = JSON.parse(localStorage.getItem('loggedInUser'));
  }
   
 getCountryDetail22(searchText: string, pageNumber : number ) { 
  var httpOptions = {
  headers: new HttpHeaders({
    'Content-Type': 'application/json; charset=utf-8',
    'Authorization' : 'Bearer ' + this.user.access_token
  }),
   };
    return this.http.post(environment.apiUrl +  environment.countrysearch, 
      {  
          PageSize:10,
          PageNumber:pageNumber,
          Search: searchText
      }, 
      this.httpOptions); 
  }
}

Hope this will help you and save your time.

Enjoy !!!