Some tips commonly used in Asp.net

Mikecat)

From: old cat ghost ideal

Here we provide you with some solutions that are often easy to use. I encapsulated some effects in a class library file.

Warning window

/// <Summary>

/// The alert dialog box is displayed on the server.

/// </Summary>

/// <Param name = "str_message"> message. For example, "cannot be blank! "</Param>

/// <Param name = "page"> page class </param>

Public void alert (string str_message, page)

{

Page. registerstartupscript ("", "<SCRIPT> alert ('" + str_message + "'); </SCRIPT> ");

}

Reload this warning window to make a control focus

/// <Summary>

/// The alert dialog box pops up on the server side, and the control gets focus

/// </Summary>

/// <Param name = "str_ctl_name"> obtain the focus Control ID value, for example, txt_name </param>

/// <Param name = "str_message"> message. For example, enter your name! "</Param>

/// <Param name = "page"> page class </param>

Public void alert (string str_ctl_name, string str_message, page)

{

Page. registerstartupscript ("", "<SCRIPT> alert ('" + str_message + "'); document. forms (0 ). "+ str_ctl_name + ". focus (); document. forms (0 ). "+ str_ctl_name + ". select (); </SCRIPT> ");

}

Confirmation dialog box

/// <Summary>

/// The confirm dialog box is displayed on the server.

/// </Summary>

/// <Param name = "str_message"> message, for example, "Are you sure you want to delete it! "</Param>

/// <Param name = "BTN"> hide the id value of the botton button, for example, btn_flow </param>

/// <Param name = "page"> page class </param>

Public void confirm (string str_message, string BTN, page)

{

Page. registerstartupscript ("", "<SCRIPT> If (confirm ('" + str_message + "') = true) {document. forms (0 ). "+ Btn + ". click () ;}</SCRIPT> ");

}

Reload confirmation dialog box, click OK to trigger a hidden button event, and click Cancel to trigger a hidden button event

/// <Summary>

/// The confirm dialog box pops up on the server, asking the user about the operations to be switched to, including the operations for "OK" and "cancel"

/// </Summary>

/// <Param name = "str_message"> A message is displayed. For example, if "data is added successfully, click \" OK \ "to enter the process, click \ "cancel \" modify data "</param>

/// <Param name = "btn_redirect_flow"> "OK" button id value </param>

/// <Param name = "btn_redirect_self"> "cancel" button id value </param>

/// <Param name = "page"> page class </param>

Public void confirm (string str_message, string btn_redirect_flow, string btn_redirect_self, page)

{

Page. registerstartupscript ("", "<SCRIPT> If (confirm ('" + str_message + "') = true) {document. forms (0 ). "+ btn_redirect_flow + ". click ();} else {document. forms (0 ). "+ btn_redirect_self + ". click () ;}</SCRIPT> ");

}

Focus

/// <Summary>

/// Make the control focus

/// </Summary>

/// <Param name = "str_ctl_name"> obtain the focus Control ID value, for example, txt_name </param>

/// <Param name = "page"> page class </param>

Public void getfocus (string str_ctl_name, page)

{

Page. registerstartupscript ("", "<SCRIPT> document. forms (0 ). "+ str_ctl_name + ". focus (); document. forms (0 ). "+ str_ctl_name + ". select (); </SCRIPT> ");

}

The subform returns the primary form.

/// <Summary>

/// Name: Redirect

/// Function: The subform returns the primary form.

/// Parameter: URL

/// Return value: NULL

/// </Summary>

Public void redirect (string URL, page)

{

If (session ["ifdefault"]! = (Object) "default ")

{

Page. registerstartupscript ("", "<SCRIPT> Publish topics .doc ument. Location. href = '" + URL + "'; </SCRIPT> ");

}

}

Determines whether it is a number.

/// <Summary>

/// Name: isnumberic

/// Function: determines whether the input is a number.

/// Parameter: String otext: Source Text

/// Return value: bool true: false: No

/// </Summary>



Public bool isnumberic (string otext)

{

Try

{

Int var1 = convert. toint32 (otext );

Return true;

}

Catch

{

Return false;

}

}

Obtain the actual length of a string (including Chinese characters)

// Obtain the actual length of the string ostring

Public int stringlength (string ostring)

{

Byte [] strarray = system. Text. encoding. Default. getbytes (ostring );

Int res = strarray. length;

Return res;

}

Convert carriage return to Tab

// When you press enter on a control with a keydown event, it becomes a tab.

Public void tab (system. Web. UI. webcontrols. webcontrol)

{

Webcontrol. Attributes. Add ("onkeydown", "If (event. keycode = 13) event. keycode = 9 ");

}

If the index is exceeded during the deletion in the DataGrid page

Public void jumppage (system. Web. UI. webcontrols. DataGrid DG)

{

Int int_pageless; // defines the number of page jumps

// If the current page is the last page

If (DG. currentpageindex = DG. The PageCount-1)

{

// If there is only one page

If (DG. currentpageindex = 0)

{

// After deletion, the page is displayed on the current page.

DG. currentpageindex = DG. The PageCount-1;

}

Else

{

// If the last page contains only one record

If (DG. Items. Count % DG. pagesize = 1) | DG. pagesize = 1)

{

// After deleting the last record of the last page, the page should jump to the previous page

Int_pageless = 2;

}

Else // if the number of records on the last page is greater than 1, the records are still on the current page after the last page is deleted.

{

Int_pageless = 1;

}

DG. currentpageindex = DG. pagecount-int_pageless;

}

}

}

Frequently UsedCodeIf my level is limited, please point out any omissions!

Thank you hereYanhui and Hao (hbzxf)Fully supported!