如何使用包含验证控件的asp.net创建Web服务器控件 [英] how to create web server control using asp.net that contain validation control
本文介绍了如何使用包含验证控件的asp.net创建Web服务器控件的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
亲爱的所有人，
我想使用包含带有RequiredFieldValidator控件的TextBox的asp.net进行Web服务器控制。我试过但验证控制不起作用。
请提前帮助我。
Dear All ,
I want to web server control using asp.net that contain TextBox with RequiredFieldValidator controls. i have tried but validation control not work.
please help me thanks in advance.
protected override void RenderContents(HtmlTextWriter output)
{
Panel mypanel = new Panel();
TextBox txtName = new TextBox();
txtName.ID = "txtNameVal";
txtName.EnableViewState = true;
RequiredFieldValidator myrqv = new RequiredFieldValidator();
myrqv.ErrorMessage = "Please enter the value";
myrqv.EnableViewState = true;
myrqv.EnableTheming = true;
myrqv.ClientIDMode = System.Web.UI.ClientIDMode.Inherit;
myrqv.Display = ValidatorDisplay.Dynamic;
myrqv.ValidateRequestMode = System.Web.UI.ValidateRequestMode.Inherit;
myrqv.ViewStateMode = System.Web.UI.ViewStateMode.Inherit;
myrqv.ControlToValidate = txtName.ID;
//myrqv.Text = "*";
txtName.AutoPostBack = false;
mypanel.Controls.Add(txtName);
mypanel.Controls.Add(myrqv);
mypanel.RenderControl(output);
output.Write("<br /><br />");
string mytxt = "<br />";
output.Write(mytxt);
//output.Write(Text);
}
vilas jadhav
vilas jadhav
推荐答案
试试这篇文章，因为这可以帮助你解决问题：
构建ASP.NET自定义Web控件：a一个文本框和验证器 [ ^ ]
Try this article as this might help you solving the problem:
Building an ASP.NET custom web control: a textbox and validator in one[^]
我已经解决了这个问题问题，它与Rangevalidation，RegularExpressionValidator和RequiredFieldValidator等验证控件正常工作
使用System;
使用System.Collections.Generic;
使用System.ComponentModel;
使用System.IO;
使用System.Linq;
u使用System.Threading.Tasks演唱System.Text;
;使用System.Web获得
;使用System.Web.UI获取
;
使用System.Web.UI.WebControls;
命名空间IFS2.BackOffice.Web.Common
{
[DefaultProperty（Text）]
[ToolboxData（< {0}：RequiredTextBox1 runat = server>）]
公共类RequiredTextBox1：TextBox
{
private RequiredFieldValidator req;
private RegularExpressionValidator reqExpress;
private RangeValidator RangeVldtr;
公共字符串InvalidMessage;
公共字符串ClientScript =true;
[Bindable（true）]
[类别（外观）]
[DefaultValue（）]
[Localizable（true）]
公共字符串RequiredErrMsg
{
get
{
String s =（String）ViewState [RequiredErrMsg];
return（（s == null）？ 这个领域是强制性的：s）;
}
set
{
ViewState [RequiredErrMsg] = value;
}
}
public enum YesNo： int
{
True = 0，
False = 1
}
[Bindable（true）]
[类别（外观）]
[DefaultValue（）]
[Localizable（true）]
[EditorBrowsable（EditorBrowsableState.Always）]
public bool RequiredField
{
get
{
object o = ViewState [RequiredField];
if（o == null）
返回false;
返回（bool）o;
}
设置
{
ViewState [RequiredField] = value;
}
}
[Bindable（true）]
[类别（外观）]
[ DefaultValue（）]
[Localizable（true）]
[EditorBrowsable（EditorBrowsableState.Always）]
public bool RangevalidationField
{
get
{
object o = ViewState [RangevalidationField];
if（o == null）
返回false;
return（bool）o;
}
set
{
ViewState [RangevalidationField] = value;
}
}
[Bindable（true）]
[类别（ 外观）]
[DefaultValue（）]
[Localizable（true）]
[EditorBrowsable（EditorBrowsableState.Always）]
公共字符串RangevalidationMaxVal
{
get
{
string o =（ string）ViewState [RangevalidationMaxVal];
if（o == null）
return string.Empty;
return o;
}
set
{
ViewState [RangevalidationMaxVal] = value;
}
}
[Bindable（true）]
[类别（外观）]
[DefaultValue（）]
[Localizable（true）]
[EditorBrowsable（EditorBrowsableState.Always） ]
公共字符串RangevalidationMinVal
{
get
{
string o =（string）ViewState [RangevalidationMinVal];
如果（o == null）
返回string.Empty;
返回o;
}
set
{
ViewState [RangevalidationMinVal] = value;
}
}
[Bindable（true）]
[类别（外观）]
[DefaultValue（）]
[Localizable（true）]
[EditorBrowsable（EditorBrowsableState.Always）]
公共字符串FieldLength
{
get
{
string o =（string）ViewState [FieldLength];
if（o == null）
返回字符串。空;
返回o;
}
设定
{
ViewState [FieldLength] =值;
}
}
< br $> b $ b
[Bindable（true）]
[类别（外观）]
[DefaultValue（ ）]
[Localizable（true）]
[EditorBrowsable（EditorBrowsableState.Always）]
公共字符串RangevalidationType
{
get
{
string o =（string）ViewState [RangevalidationType];
if （o == null）
返回string.Empty;
返回o;
}
set
{
ViewState [RangevalidationType] = value;
}
}
// [Bindable（true）]
// [类别（外观）]
// [DefaultValue（）]
// [Localizable（true）]
//公共字符串ID {
//获取
// {
// String s =（String）ViewState [ID];
//返回（（s == null）？ ClientID.ToString（）：s）;
//}
//设置
// {
// ViewState [ID] =值;
//}
//}
protected override void OnInit（EventArgs e）
{
if（Context！= null）
{
req = new RequiredFieldValidator（）;
if（this.ID == null）
{
this.ID =RequiredTextBox1+ GetNumbers（ClientID）.ToString（）;
}
RangeVldtr = new RangeValidator（）;
reqExpress = new RegularExpressionValidator（）;
//reqExpress.ValidationExpression=^ [0-9] *
Hi,
I have solve this problem and it is working properly with validation controls like Rangevalidation, RegularExpressionValidator and RequiredFieldValidator
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace IFS2.BackOffice.Web.Common
{
[DefaultProperty("Text")]
[ToolboxData("<{0}:RequiredTextBox1 runat=server>")]
public class RequiredTextBox1 : TextBox
{
private RequiredFieldValidator req;
private RegularExpressionValidator reqExpress;
private RangeValidator RangeVldtr;
public string InvalidMessage;
public string ClientScript = "true";
[Bindable(true)]
[Category("Appearance")]
[DefaultValue("")]
[Localizable(true)]
public string RequiredErrMsg
{
get
{
String s = (String)ViewState["RequiredErrMsg"];
return ((s == null) ? "This Field is Mandatory " : s);
}
set
{
ViewState["RequiredErrMsg"] = value;
}
}
public enum YesNo : int
{
True=0,
False=1
}
[Bindable(true)]
[Category("Appearance")]
[DefaultValue("")]
[Localizable(true)]
public bool RequiredField
{
get
{
object o = ViewState["RequiredField"];
if (o == null)
return false;
return (bool)o;
}
set
{
ViewState["RequiredField"] = value;
}
}
[Bindable(true)]
[Category("Appearance")]
[DefaultValue("")]
[Localizable(true)]
public bool RangevalidationField
{
get
{
object o = ViewState["RangevalidationField"];
if (o == null)
return false;
return (bool)o;
}
set
{
ViewState["RangevalidationField"] = value;
}
}
[Bindable(true)]
[Category("Appearance")]
[DefaultValue("")]
[Localizable(true)]
public string RangevalidationMaxVal
{
get
{
string o = (string) ViewState["RangevalidationMaxVal"];
if (o == null)
return string.Empty;
return o;
}
set
{
ViewState["RangevalidationMaxVal"] = value;
}
}
[Bindable(true)]
[Category("Appearance")]
[DefaultValue("")]
[Localizable(true)]
public string RangevalidationMinVal
{
get
{
string o = (string)ViewState["RangevalidationMinVal"];
if (o == null)
return string.Empty;
return o;
}
set
{
ViewState["RangevalidationMinVal"] = value;
}
}
[Bindable(true)]
[Category("Appearance")]
[DefaultValue("")]
[Localizable(true)]
public string FieldLength
{
get
{
string o = (string)ViewState["FieldLength"];
if (o == null)
return string.Empty;
return o;
}
set
{
ViewState["FieldLength"] = value;
}
}
[Bindable(true)]
[Category("Appearance")]
[DefaultValue("")]
[Localizable(true)]
public string RangevalidationType
{
get
{
string o = (string)ViewState["RangevalidationType"];
if (o == null)
return string.Empty;
return o;
}
set
{
ViewState["RangevalidationType"] = value;
}
}
//[Bindable(true)]
//[Category("Appearance")]
//[DefaultValue("")]
//[Localizable(true)]
//public String ID {
// get
// {
// String s = (String)ViewState["ID"];
// return ((s == null) ? ClientID.ToString() : s);
// }
// set
// {
// ViewState["ID"] = value;
// }
//}
protected override void OnInit(EventArgs e)
{
if (Context != null)
{
req = new RequiredFieldValidator();
if (this.ID == null)
{
this.ID = "RequiredTextBox1" + GetNumbers(ClientID).ToString();
}
RangeVldtr = new RangeValidator();
reqExpress = new RegularExpressionValidator();
//reqExpress.ValidationExpression= "^[0-9]*
; //仅适用于数字而不是字母和空格
//reqExpress.ValidationExpression =^ [a-zA-Z'' - '\\\\] {1,40}
"; //only for Number not letter and space
//reqExpress.ValidationExpression = "^[a-zA-Z''-'\\s]{1,40}
这篇关于如何使用包含验证控件的asp.net创建Web服务器控件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
