в 15:31, 26 мая 2010

2010-05-26T15:31:35Z

Admin: 1 версия

2010-05-26T12:09:33Z

1 версия

Новая страница

==ErrorProvider.GetError==

<source lang="csharp">

using System;
using System.Windows.Forms;
using System.Text.RegularExpressions;
public class TextBoxValidationRegex : Form
{
public TextBoxValidationRegex()
{
this.ruponents = new System.ruponentModel.Container();
this.Button1 = new System.Windows.Forms.Button();
this.errProvider = new System.Windows.Forms.ErrorProvider(this.ruponents);
this.Label3 = new System.Windows.Forms.Label();
this.txtEmail = new System.Windows.Forms.TextBox();
((System.ruponentModel.ISupportInitialize)(this.errProvider)).BeginInit();
this.SuspendLayout();
this.Button1.Location = new System.Drawing.Point(212, 80);
this.Button1.Name = "Button1";
this.Button1.Size = new System.Drawing.Size(76, 24);
this.Button1.TabIndex = 12;
this.Button1.Text = "OK";
this.Button1.Click += new System.EventHandler(this.Button1_Click);
this.errProvider.ContainerControl = this;
this.errProvider.DataMember = "";
this.Label3.Location = new System.Drawing.Point(24, 24);
this.Label3.Size = new System.Drawing.Size(40, 16);
this.Label3.Text = "Email:";
this.txtEmail.Location = new System.Drawing.Point(68, 20);
this.txtEmail.Size = new System.Drawing.Size(220, 21);
this.txtEmail.Leave += new System.EventHandler(this.txtEmail_Leave);
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(328, 126);
this.Controls.Add(this.Label3);
this.Controls.Add(this.txtEmail);
this.Controls.Add(this.Button1);
this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
((System.ruponentModel.ISupportInitialize)(this.errProvider)).EndInit();
this.ResumeLayout(false);
this.PerformLayout();
}
private void Button1_Click(object sender, EventArgs e)
{
string errorText = "";
foreach (Control ctrl in this.Controls)
{
if (errProvider.GetError(ctrl) != "")
{
errorText += " * " + errProvider.GetError(ctrl) + "\n";

}
MessageBox.Show("Errors:" +errorText, "Invalid Input", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
private void txtEmail_Leave(object sender, EventArgs e)
{
Regex regex;
regex = new Regex(@"^[\w-]+@([\w-]+\.)+[\w-]+$");
Control ctrl = (Control)sender;
if (regex.IsMatch(ctrl.Text) || ctrl.Text == "")
{
errProvider.SetError(ctrl, "");
}
else
{
errProvider.SetError(ctrl, "This is not a valid email address.");
}
}
[STAThread]
public static void Main(string[] args)
{
Application.Run(new TextBoxValidationRegex());
}
private System.Windows.Forms.Button Button1;
private System.Windows.Forms.ErrorProvider errProvider;
private System.Windows.Forms.Label Label3;
private System.Windows.Forms.TextBox txtEmail;
private System.ruponentModel.IContainer components = null;
}

</source>

==ErrorProvider.SetError==

<source lang="csharp">
using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
public class ErrorForm : System.Windows.Forms.Form
{
private System.ruponentModel.Container components = null;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Button btnValidate;
private System.Windows.Forms.ErrorProvider errorProvider1;
private System.Windows.Forms.TextBox txtInput;
public ErrorForm()
{
InitializeComponent();
}
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
private void InitializeComponent()
{
this.errorProvider1 = new System.Windows.Forms.ErrorProvider();
this.label1 = new System.Windows.Forms.Label();
this.txtInput = new System.Windows.Forms.TextBox();
this.btnValidate = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// errorProvider1
//
this.errorProvider1.BlinkRate = 500;
this.errorProvider1.BlinkStyle = System.Windows.Forms.ErrorBlinkStyle.AlwaysBlink;
this.errorProvider1.ContainerControl = this;
//
// label1
//
this.label1.Font = new System.Drawing.Font("Arial Black", 12F);
this.label1.Location = new System.Drawing.Point(8, 8);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(376, 56);
this.label1.TabIndex = 2;
this.label1.Text = "The following text box only allows 5 characters. Try to enter more...";
//
// txtInput
//
this.txtInput.Location = new System.Drawing.Point(144, 80);
this.txtInput.Name = "txtInput";
this.txtInput.Size = new System.Drawing.Size(120, 20);
this.txtInput.TabIndex = 0;
this.txtInput.Text = "";
this.txtInput.Validating += new System.ruponentModel.CancelEventHandler(this.txtInput_Validating);
//
// btnValidate
//
this.btnValidate.Location = new System.Drawing.Point(16, 72);
this.btnValidate.Name = "btnValidate";
this.btnValidate.Size = new System.Drawing.Size(112, 32);
this.btnValidate.TabIndex = 1;
this.btnValidate.Text = "OK";
//
// ErrorForm
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(400, 125);
this.Controls.Add(this.label1);
this.Controls.Add(this.btnValidate);
this.Controls.Add(this.txtInput);
this.Name = "ErrorForm";
this.Text = "Error Trapper";
this.ResumeLayout(false);
}
[STAThread]
static void Main()
{
Application.Run(new ErrorForm());
}
private void txtInput_Validating(object sender, System.ruponentModel.CancelEventArgs e)
{
// Check if the text length is greater than 5.
if(txtInput.Text.Length > 5)
{
errorProvider1.SetError( txtInput, "Can"t be greater than 5!");
}
else
errorProvider1.SetError(txtInput, "");
}
}

</source>

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Csharp/C Sharp by API/System.Windows.Forms/ErrorProvider - История изменений

в 15:31, 26 мая 2010

Admin: 1 версия