Web parts

// Gets the root category of the web part tree
WebPartCategoryInfo root = WebPartCategoryInfoProvider.GetWebPartCategoryInfoByCodeName("/");

if (root != null)
{
    // Creates a new web part category object
    WebPartCategoryInfo newCategory = new WebPartCategoryInfo();

    // Sets web part category properties
    newCategory.CategoryDisplayName = "New category";
    newCategory.CategoryName = "NewCategory";
    newCategory.CategoryParentID = root.CategoryID;

    // Saves the web part category to the database
    WebPartCategoryInfoProvider.SetWebPartCategoryInfo(newCategory);
}

// Gets the web part category
WebPartCategoryInfo updateCategory = WebPartCategoryInfoProvider.GetWebPartCategoryInfoByCodeName("NewCategory");             
if (updateCategory != null)
{
    // Updates the web part category properties
    updateCategory.CategoryDisplayName = updateCategory.CategoryDisplayName.ToLower();

    // Saves the changes to the database
    WebPartCategoryInfoProvider.SetWebPartCategoryInfo(updateCategory);
}

// Gets all Web part categories whose display name starts with 'New category'
var categories = WebPartCategoryInfoProvider.GetCategories().WhereStartsWith("CategoryDisplayName", "New category");

// Loops through the web part category objects
foreach (WebPartCategoryInfo modifyCategory in categories)
{
    // Updates the properties
    modifyCategory.CategoryDisplayName = modifyCategory.CategoryDisplayName.ToUpper();

    // Saves the changes to the database
    WebPartCategoryInfoProvider.SetWebPartCategoryInfo(modifyCategory);
}

// Gets the web part category
WebPartCategoryInfo deleteCategory = WebPartCategoryInfoProvider.GetWebPartCategoryInfoByCodeName("NewCategory");

// Deletes the web part category
WebPartCategoryInfoProvider.DeleteCategoryInfo(deleteCategory);

// Gets a parent category for the new web part
WebPartCategoryInfo category = WebPartCategoryInfoProvider.GetWebPartCategoryInfoByCodeName("NewCategory");

if (category != null)
{
    // Creates a new web part object
    WebPartInfo newWebpart = new WebPartInfo();

    // Sets the web part properties
    newWebpart.WebPartDisplayName = "New web part";
    newWebpart.WebPartName = "NewWebpart";
    newWebpart.WebPartDescription = "This is a new web part.";
    newWebpart.WebPartFileName = "FileName";
    newWebpart.WebPartProperties = "<form></form>";
    newWebpart.WebPartCategoryID = category.CategoryID;

    // Saves the web part to the database
    WebPartInfoProvider.SetWebPartInfo(newWebpart);                 
}

// Gets the web part
WebPartInfo updateWebpart = WebPartInfoProvider.GetWebPartInfo("NewWebpart");
if (updateWebpart != null)
{
    // Updates the web part properties
    updateWebpart.WebPartDisplayName = updateWebpart.WebPartDisplayName.ToLower();

    // Saves the changes to the database
    WebPartInfoProvider.SetWebPartInfo(updateWebpart);                  
}

// Gets all web parts whose name starts with 'NewWebpart'
var webparts = WebPartInfoProvider.GetWebParts().WhereStartsWith("WebPartName", "NewWebpart");

// Loop through individual web parts
foreach (WebPartInfo webPart in webparts)
{                   
    // Updates the web part properties
    webPart.WebPartDisplayName = webPart.WebPartDisplayName.ToUpper();

    // Saves the changes to the database
    WebPartInfoProvider.SetWebPartInfo(webPart);
}

// Gets the web part
WebPartInfo deleteWebpart = WebPartInfoProvider.GetWebPartInfo("NewWebpart");

// Deletes the web part
WebPartInfoProvider.DeleteWebPartInfo(deleteWebpart);

// Gets the web part
WebPartInfo webpart = WebPartInfoProvider.GetWebPartInfo("NewWebpart");
if (webpart != null)
{
    // Creates a new web part layout object
    WebPartLayoutInfo newLayout = new WebPartLayoutInfo();

    // Sets the web part layout properties
    newLayout.WebPartLayoutDisplayName = "New layout";
    newLayout.WebPartLayoutCodeName = "NewLayout";
    newLayout.WebPartLayoutWebPartID = webpart.WebPartID;
    newLayout.WebPartLayoutCode = "This is the new layout of the NewWebpart web part.";

    // Saves the web part layout to the database
    WebPartLayoutInfoProvider.SetWebPartLayoutInfo(newLayout);
}

// Gets the web part layout
WebPartLayoutInfo updateLayout = WebPartLayoutInfoProvider.GetWebPartLayoutInfo("NewWebpart", "NewLayout");
if (updateLayout != null)
{
    // Updates the web part layout properties
    updateLayout.WebPartLayoutDisplayName = updateLayout.WebPartLayoutDisplayName.ToLower();

    // Saves the changes to the database
    WebPartLayoutInfoProvider.SetWebPartLayoutInfo(updateLayout);
}

// Gets all web part layouts whose code name starts with 'NewLayout'
var layouts = WebPartLayoutInfoProvider.GetWebPartLayouts().WhereStartsWith("WebPartLayoutCodeName", "NewLayout");

// Loops through individual web part layouts
foreach (WebPartLayoutInfo layout in layouts)
{                   
    // Updates the web part layout properties
    layout.WebPartLayoutDisplayName = layout.WebPartLayoutDisplayName.ToUpper();

    // Saves the changes to the database
    WebPartLayoutInfoProvider.SetWebPartLayoutInfo(layout);
}

// Gets the web part layout
WebPartLayoutInfo deleteLayout = WebPartLayoutInfoProvider.GetWebPartLayoutInfo("NewWebpart", "NewLayout");

// Deletes the web part layout
WebPartLayoutInfoProvider.DeleteWebPartLayoutInfo(deleteLayout);