在Master母版页中通过FindControl()方法获取服务器控件

在Master母版页中路程经过过程FindControl()要领获取办事器控件 1、办事器控件与代码都位于母版页

  Response.Write("<script language=javascript>window.alert('" + TextBox1.Text + "')</script>");

  TextBox tb1 = (TextBox)FindControl("TextBox1");

  Response.Write("<script language=javascript>window.alert('FindControl()获取:" + tb1.Text + "')</script>");

  /*以下用处纰缪:

  *TextBox tb2 = (TextBox)Master.FindControl("TextBox1");

  *Response.Write("<script language=javascript>window.alert('" + tb2.Text + "')</script>");

  */

  2、办事器控件与代码都位于内部实质意义页

  Response.Write("<script language=javascript>window.alert('" + TextBox1.Text + "')</script>");

  ContentPlaceHolder cpl1 = (ContentPlaceHolder)Master.FindControl("ContentPla ceHolder1");

  TextBox tb1 = (TextBox)cpl1.FindControl("TextBox1");

  Response.Write("<script language=javascript>window.alert('Master.FindContro l()获取:" + tb1.Text + "')</script>");

  //或:

  ContentPlaceHolder cpl2 = (ContentPlaceHolder)FindControl("ContentPlaceHolde r1");

  //在此FindControl()代表Master.FindControl(),在Master母版页中查寻控件

  TextBox tb2= (TextBox)cpl1.FindControl("TextBox1");

  Response.Write("<script language=javascript>window.alert('FindControl()获取:" + tb2.Text + "')</script>");

  /*以下用处纰缪:

  *TextBox tb1 = (TextBox)FindControl("TextBox1");

  //在此FindControl()代表Master.FindControl(),在Master母版页中查寻控件,而TextBox1在Content内部实质意义页中,以是找不到TextBox1控件

  *Response.Write("<script language=javascript>window.alert('" + tb1.Text + "')</script>");

  */

  3、办事器控件位于母版页,代码位于内部实质意义页

  TextBox tb1 = (TextBox)Master.FindControl("TextBox1");

  Response.Write("<script language=javascript>window.alert('" + tb1.Text + "')</script>");

  4、办事器控件位于内部实质意义页,代码位于母版页

  TextBox tb = (TextBox)ContentPlaceHolder1.FindControl("TextBox1 ");

  Response.Write("<script language=javascript>window.alert('" + tb.Text + "')</script>");

  /*纰缪的用处:

  * Response.Write("<script language=javascript>window.alert('" + TextBox1.Text + "')</script>");

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