Traverse all textbox on the page and assign the value to string. Empty (ASP. NET and winform)

1. Traverse Form Controls

 
1. the common page traverses the Textbox Control clearing method. Other controls are similar to the foreach (control C in this. controls) {If (C is textbox) {textbox TB = (textbox) C; TB. TEXT = string. empty;} // or foreach (control Col in this. controls) {If (Col. getType (). name. equals ("textbox") {(textbox) COL ). TEXT = string. empty ;}}
 

 

Ii. traverse the Asp.net page

 
// The foreach (system. web. UI. control txtobj in this. page. controls) {If (txtobj. getType (). name. equals ("textbox") {// (textbox) txtobj ). TEXT = string. empty; // This is the first method to assign values. The second method is textbox TB = new Textbox (); TB = (textbox) This. findcontrol (txtobj. ID); TB. TEXT = string. empty ;}}
 

 

Includes dashboard page

// Use the page of the master page to traverse the Textbox Control. Other controls are similar to foreach (control CP in page. controls) {foreach (system. web. UI. control CT in CP. controls) {If (CT is htmlform) {foreach (control con in CT. controls) {foreach (control C in con. controls) {If (C is textbox) {(C as textbox ). TEXT = string. empty ;}}}}}}
 

3. Clear control content

 // clear all the controls on the specified page // public static void clearallcontent () // clear all the controls on the specified page // includes Textbox, checkbox, checkboxlist, radiobutton, and radiobuttonlist. But it is not clear // except ListBox and dropdownlist, because such control values can be used for the current page. Generally, these controls contain stored Dictionary data. //  specified page  Public static void clearallcontent (system. web. UI. control page) {int npagecontrols = page. controls. count; For (INT I = 0; I