你可能感興趣的試題

You are implementing a read-only page that includes the following controls.
You disable view state to improve performance. You need to ensure that the page is updated to display the latest data when the user clicks the refresh button. Which code segment should you use?（）

A.protected void Page_PreInit（object sender， EventArgs e） { if （!IsPostBack） { gvCustomers.DataSource = GetCustomers（）； gvCustomers.DataBind（）； } }
B.protected void Page_Load（object sender， EventArgs e） { gvCustomers.DataSource = GetCustomers（）； gvCustomers.DataBind（）； }
C.protected void gvCustomers_DataBinding（object sender， EventArgs e） { gvCustomers.DataSource = GetCustomers（）； gvCustomers.DataBind（）； }
D.protected void Page_PreRender（object sender， EventArgs e） { if （!IsPostBack） { gvCustomers.DataSource = GetCustomers（）； gvCustomers.DataBind（）； } }

單項選擇題

You are implementing an ASP.NET page in an e-commerce application. Code in abtnAddToCart_Click event handler adds a product to the shopping cart. The page should check the status of the shopping cart and always show a cart icon when one or more items are in the shopping cart. The page should hide the icon when the shopping cart has no items. You need to add an event handler to implement this requirement. Which event handler should you add？（）

A.btnAddToCart_Click
B.Page_Load
C.Page_PreRender
D.Page_PreInit

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You create an ASP.NET page named TestPage.aspx that contains validation controls. You need to verify that all input values submitted by the user have been validated by testing the Page.IsValid property. Which page event should add an event handler to？（）

你可能感興趣的試題

You are implementing a read-only page that includes the following controls. You disable view state to improve performance. You need to ensure that the page is updated to display the latest data when the user clicks the refresh button. Which code segment should you use?（）

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You create an ASP.NET page named TestPage.aspx that contains validation controls. You need to verify that all input values submitted by the user have been validated by testing the Page.IsValid property. Which page event should add an event handler to？（）

You are implementing a read-only page that includes the following controls.
You disable view state to improve performance. You need to ensure that the page is updated to display the latest data when the user clicks the refresh button. Which code segment should you use?（）