表单加载时检查DataGridview复选框

Question

我打开表单，但是数据视图，第一个单元格，无法检查。 我的代码在下面，我想要检查所有的checkboxcell是否默认。这个代码在form_load中。谁有好主意。我已经测试了很多方法。

DataGridView1.Refresh（）;  int count = Convert.ToInt32（DataGridView1.RowCount.ToString（））;

package com.company.myApp;

import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.util.Log;
import android.view.GestureDetector;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;

public class Fragment_ProgressBar extends Fragment {
    final static String TAG = "Fragment_ProgressBar";
    final static String FRAGMENT_TAG_SUMMARY     = "Fragment_Summary";
    final static String FRAGMENT_TAG_PROGRESSBAR = "Fragment_ProgressBar";
    final static String FRAGMENT_TAG_TIME  = "Fragment_Time";
    final static String DIRECTION_LEFT  = "DIRECTION_LEFT";
    final static String DIRECTION_RIGHT = "DIRECTION_RIGHT";
    public final static String CURRENT_FRAGMENT = FRAGMENT_TAG_PROGRESSBAR;
    final Fragment thisFragment = this;

    public Fragment_ProgressBar(){}

    @Override
    public View onCreateView(LayoutInflater inflater,
                             ViewGroup container,
                             Bundle savedInstanceState) {

        final GestureDetector gesture = new GestureDetector(getActivity(),
                new GestureDetector.SimpleOnGestureListener() {

                    @Override
                    public boolean onDown(MotionEvent e) {
                        return true;
                    }

                    @Override
                    public boolean onFling(MotionEvent event1,
                                           MotionEvent event2,
                                           float velocityX,
                                           float velocityY) {
                        final int SWIPE_MIN_DISTANCE = 120;
                        final int SWIPE_MAX_OFF_PATH = 250;
                        final int SWIPE_THRESHOLD_VELOCITY = 200;
                        try {
                            if (Math.abs(event1.getY() - event2.getY()) > SWIPE_MAX_OFF_PATH)
                                return false;
                            if (event1.getX() - event2.getX() > SWIPE_MIN_DISTANCE
                                    && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
                                Log.i(TAG, "Right to Left");
                                showFragment_RightToLeft(FRAGMENT_TAG_TIMECIRCLE);
                            } else if (event2.getX() - event1.getX() > SWIPE_MIN_DISTANCE
                                    && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
                                Log.i(TAG, "Left to Right");
                                showFragment_LeftToRight(FRAGMENT_TAG_SUMMARY);
                            }
                        } catch (Exception e) {
                            // nothing
                        }
                        return super.onFling(event1, event2, velocityX, velocityY);
                    }
                });

        View view = inflater.inflate(R.layout.fragment_progress_bar, container, false);
        view.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                return gesture.onTouchEvent(event);
            }
        });
        // Inflate the layout for this fragment
        return view;
    }

    private Fragment getNewFragment(String name){
        Log.i(TAG,String.format("Fragment (%s) not found; creating new instance.", name));
        switch (name) {
            case FRAGMENT_TAG_SUMMARY:
                return new Fragment_Summary();
            case FRAGMENT_TAG_PROGRESSBAR:
                return new Fragment_ProgressBar();
            case FRAGMENT_TAG_TIME:
                return new Fragment_Time();
        }
        return null;
    }

    private void showFragment_LeftToRight(String nextFragmentNameTag)
    {

        Fragment nextFragment = getChildFragmentManager().findFragmentByTag(nextFragmentNameTag);
        if (nextFragment == null)
            nextFragment = getNewFragment(nextFragmentNameTag);
        if (nextFragment == null)
            return;

        FragmentTransaction ft = getFragmentManager().beginTransaction();
        ft.setCustomAnimations(R.animator.slide_in_left, R.animator.slide_out_right);
        ft.remove(thisFragment);
        ft.add(R.id.overview_fragment_container, nextFragment, nextFragmentNameTag);
        ft.addToBackStack(null);
        ft.commit();
        getFragmentManager().executePendingTransactions();

    }
    private void showFragment_RightToLeft(String nextFragmentNameTag)
    {
        Fragment nextFragment = getChildFragmentManager().findFragmentByTag(nextFragmentNameTag);
        if (nextFragment == null)
            nextFragment = getNewFragment(nextFragmentNameTag);
        if (nextFragment == null)
            return;

        FragmentTransaction ft = getFragmentManager().beginTransaction();
        ft.setCustomAnimations(R.animator.slide_in_right, R.animator.slide_out_left);
        ft.replace(R.id.overview_fragment_container, nextFragment, nextFragmentNameTag);
        ft.addToBackStack(null);
        ft.commit();
        getFragmentManager().executePendingTransactions();

    }

}

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