var inputs=document.getElementByTagName("input"); for(var i in inputs){ if(i.type=='textbox') i.value="web"; }
方法一:foreach (Control aa in this.表单名称.Controls) { if (aa.GetType().Name == "TextBox") ((TextBox)aa).Text = "";//赋值为空 }方法二:先找出你的Form的ID protected HtmlForm yourformID;
foreach (object obj in yourformID.Controls) { if (obj is TextBox) { TextBox tb = (TextBox)obj; if (tb.Text = string.Empty) { Response.Write("<script>alert(?" + tb.ID + "的值为空。?);</script>;") } } }
C#遍历所有的Textbox控件并赋值为String.Emptyforeach (Control ctl in this.form1.Controls))-----B/S时候//foreach (Control ctl in this.Controls)//-----C/S时候 { if (ctl is TextBox) { TextBox t = (TextBox)ctl; t.Text = string.Empty; } }
服务器端C#代码: 服务器端C#代码:private void ClearTextBox() { foreach (System.Web.UI.Control control in this.Controls) { for (int i = 0; i < control.Controls.Count; i++) { if (control.Controls[i] is System.Web.UI.WebControls.TextBox) { System.Web.UI.WebControls.TextBox tbx = (System.Web.UI.WebControls.TextBox)control.Controls[i]; tbx.Text = ""; } } } } 客户端JavaScript代码: function ClearAllTextBox() { var obj = window.document.forms[0]; for (i = 0; i < obj.elements.length; i++) { var elem = obj.elements[i]; if (elem) { if (elem.type == "text") { elem.value = ""; } } } } 我的博客里有排版好些的
$("input>textbox").each(n,i){
n.val("");
}
for(var i in inputs){
if(i.type=='textbox')
i.value="web";
}
if (aa.GetType().Name == "TextBox")
((TextBox)aa).Text = "";//赋值为空 }方法二:先找出你的Form的ID
protected HtmlForm yourformID;
foreach (object obj in yourformID.Controls)
{
if (obj is TextBox)
{
TextBox tb = (TextBox)obj;
if (tb.Text = string.Empty)
{
Response.Write("<script>alert(?" + tb.ID + "的值为空。?);</script>;")
}
}
}
{
if (ctl is TextBox)
{
TextBox t = (TextBox)ctl;
t.Text = string.Empty;
}
}
服务器端C#代码:private void ClearTextBox() { foreach (System.Web.UI.Control control in this.Controls) { for (int i = 0; i < control.Controls.Count; i++) { if (control.Controls[i] is System.Web.UI.WebControls.TextBox) { System.Web.UI.WebControls.TextBox tbx = (System.Web.UI.WebControls.TextBox)control.Controls[i]; tbx.Text = ""; } } } }
客户端JavaScript代码:
function ClearAllTextBox() {
var obj = window.document.forms[0];
for (i = 0; i < obj.elements.length; i++) {
var elem = obj.elements[i];
if (elem) {
if (elem.type == "text") {
elem.value = "";
}
}
}
}
我的博客里有排版好些的
{
if (control is System.Windows.Forms.TextBox)
{
System.Windows.Forms.TextBox tb = (System.Windows.Forms.TextBox)control ;
tb.Text = String.Empty ;
}
} 放心用哈没问题