IPictureElement的使用方法

      

 

　　  string bmpPath = "";
        private void axPageLayoutControl1_OnMouseDown(object sender, ESRI.ArcGIS.Controls.IPageLayoutControlEvents_OnMouseDownEvent e)
        {
            IPageLayout pPageLayout=axPageLayoutControl1.PageLayout;
            IGraphicsContainer pGraphicsContainer = pPageLayout as IGraphicsContainer;
            IActiveView pActiveView = pPageLayout as IActiveView;      
            IPictureElement pBmpPicEle = new BmpPictureElementClass();
            if (bmpPath != "")
            {
                pBmpPicEle.ImportPictureFromFile(bmpPath);
                pBmpPicEle.MaintainAspectRatio = true;
                IEnvelope pEnv;
                pEnv = axPageLayoutControl1.TrackRectangle();
                IElement pEle;
                pEle = pBmpPicEle as IElement;
                pEle.Geometry = pEnv;
                pGraphicsContainer.AddElement(pEle, 0);
                pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            OpenFileDialog dlg = new OpenFileDialog();
            dlg.AddExtension = true;
            dlg.CheckFileExists = true;
            dlg.CheckPathExists = true;
            dlg.Multiselect = false;
            dlg.RestoreDirectory = true;
            dlg.ShowReadOnly = true;
            dlg.Filter = "bmp （*.bmp）|*.bmp";
            dlg.Title = "打开BMP文件";
            dlg.InitialDirectory = "D:\\";
            if(dlg.ShowDialog() ==DialogResult.OK)
            {
                bmpPath = dlg.FileName;
            }