Vf page selecting batch class .That class name is passing as a string. one method will call Database.ExecuteBatch using the string as the name of the class . Here i want to pass one parameter from apex class to batch class.which i was selected in VF.

Here how shall I send parameter from apex class to batch class In this scenario. I have highligted code.where i want to send as a param.
public class DynamicBatchClass {
public string selectedclass{get;set;}
public string classname{get;set;}
public string inputquery{get;set;}
public DynamicBatchClass(){

}
public list<selectoption> getclassnameslist ()
{
map<string,sobject> instanceMap=new map<string,sobject>();
list<selectoption> options=new list<selectoption>();
system.debug('---->>>>-');
list<ApexClass> ClassNames=new list<ApexClass>();
options.add(new selectoption('--None--','--None--'));
ClassNames=[select Id,name,body from ApexClass];
for(ApexClass ac:ClassNames)
{
if(ac.body.contains('batch')){
system.debug('-----'+ac.name);
options.add(new selectoption(ac.Id,ac.name));
instanceMap.put(ac.name, ac);
system.debug('--instanceMap--'+instanceMap);
}
}

return options;
}

public void run(){
system.debug('--selectedclasses--'+selectedclass);
system.debug('--query-->'+inputquery);
Type classType = Type.forName(selectedclass);
    Database.Batchable<sobject> instance = (Database.Batchable<sobject>)classType.newInstance();
    Database.executeBatch((Database.Batchable<sObject>)instance, 100);
}
}

Any one help me to pass the classname

VF :- <apex:page controller="DynamicBatchClass" showHeader="false" standardStylesheets="false" sidebar="false" docType="html-5.0" applyBodyTag="False" applyHtmlTag="False">
<html xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" lang="en" >
<apex:stylesheet value="{!URLFOR($Resource.SLDS24, 'assets/styles/salesforce-lightning-design-system-vf.min.css')}" />
<apex:form>

<div class="slds" role="banner">
<div class="slds-grid">
<div class="slds-form-element">
<label class="slds-form-element__label" for="text-input-01">Input Label</label>
<div class="slds-form-element__control">
<input type="text" id="text-input-01" class="slds-input" placeholder="Placeholder Text" />
</div>
</div>
<div class="slds-text-heading--large">Select Batch Class</div>
<apex:selectList value="{!selectedclasses}" multiselect="false" size="1" label="Select Batch Class">
<apex:selectOptions value="{!classnameslist}"></apex:selectOptions>
</apex:selectList>
</div>
</div>
<apex:pageblock >

<apex:pageBlockSection >
<apex:inputTextArea label="Query"></apex:inputTextArea>
</apex:pageBlockSection>
</apex:pageblock>
</apex:form>
</html>
</apex:page>

April 25, 2017
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Vf page selecting batch class .That class name is passing as a string. one method will call Database.ExecuteBatch using the string as the name of the class . Here i want to pass one parameter from apex class to batch class.which i was selected in VF.

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