[SalesForce] How to check empty value in a string

I have array with list of class.

public class filterField {
    public String label {get;set;}
    public String searchFieldName {get;set;}
    public String searchValue {get;set;}

    public filterField(String a,String b,String  c) {
        this.label=a;
        this.searchFieldName =b;
        this.searchValue  =c;
    }

}  

public filterField [] filterArray {get;set;}
filterArray = new filterField[]{};

FilterArray is list of class. I try to get the value of class string values. I tried below.

apex:

for(integer i=0;i<filterArray.size();i++) {
    system.debug('value insude for:::::'+filterArray.get(i).searchValue);

    string s=filterArray.get(i).searchValue;

    if(filterArray.get(i).searchValue!=null || filterArray.get(i).searchValue!='') {

        system.debug('value ins:::::'+filterArray.get(i).searchValue);
        String strField=filterArray.get(i).searchFieldName +':'+'"'+filterArray.get(i).searchValue+'"';
        strFilterField+=strField;
    }
}

My array values are :

filterField:[label=AccountName, searchFieldName=FULL_NAME, searchValue=], 
filterField:[label=City, searchFieldName=PRIM_CITY, searchValue=test], 
filterField:[label=Country, searchFieldName=PRIM_COUNTRY_NM, searchValue=], 
filterField:[label=Street Address, searchFieldName=PRIM_ADDR_LN_1, searchValue=], 
filterField:[label=State/Province, searchFieldName=PRIM_STATE, searchValue=test], 
filterField:[label=Zip/PostalCode, searchFieldName=PRIM_POSTAL_CD, searchValue=]

Best Answer

Use String.isBlank(yourString) to check if it's null or '' or ' '. This method detects whether string has null or blank space or just quotes.

Example:

String str = 'searchValue';
System.assertEquals(false,String.isBlank(str));   // returns false since string is not blank

Related Solutions

[SalesForce] Simple Apex class to return a list of strings

You can't instantiate a List like that using an integer. You don't need to explicitly specify how much items are going into the list when it is created. Instead, just remove the integer:

//Instantiate the list
String[] myArray = new List<String>();

You're logic in your loop seems to be incorrect as well. Specifically, myArray's size will always be 0 when you instantiate it. Change your loop logic to:

for(Integer i=0;i<length;i++) {
   // code
}

You want to generate a List of strings based on the i variable. You will want to change your internal logic to:

//Populate the array
myArray.add('Test ' + i);

// Write value to the debug log
System.debug(myArray[i]);

Finally, you want to return that Array. You need to change your method so the return type is no longer void by changing its signature:

public static String[] generateStringArray(Integer length)

then it is just a matter of returning that array at the end of your method:

return myArray;

This would bring it all together as:

public class StringArrayTest {
    //Public Method
    public static String[] generateStringArray(Integer length) {
        //Instantiate the list
        String[] myArray = new List<String>();

        //Iterate throught the list
        for(Integer i=0;i<length;i++) {
            //Populate the array
            myArray.add('Test ' + i);

            // Write value to the debug log
            System.debug(myArray[i]);
        } //end loop

        return myArray;
    }//end method       
}// end class

Some more info on Arrays and Lists, Loops, and Class methods for future reference.

[SalesForce] Filter and search is not working

I see that the code where you find actual accounts is not returned in wrapper format

    public pagereference Search()
    {
        String finalSearchValue = '%' + fullname + '%';
        Accounts = [Select Id, Name, Active__c FROM Account
                    where Name like :finalSearchValue];
        wraplist = new list<wrapData>();  
        for(Account a: Accounts)
        {
            wrapList.add(new wrapData(a));
        }
       return null;
   }

Same way apply for filter method as well.

Best Answer

Related Solutions

[SalesForce] Simple Apex class to return a list of strings

[SalesForce] Filter and search is not working

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