в 15:31, 26 мая 2010

2010-05-26T15:31:53Z

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2010-05-26T12:15:19Z

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==ErrorProvider: number must be in a range==

<source lang="csharp">using System;
using System.Collections.Generic;
using System.ruponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void numberBox_Validating(object sender, CancelEventArgs e)
{
try
{
int numberEntered = int.Parse(numberBox.Text);
if (numberEntered < 1 || numberEntered > 10)
{
e.Cancel = true;
errorProvider1.SetError(numberBox, "You must enter a number between 1 and 10");
}
}
catch (FormatException)
{
e.Cancel = true;
errorProvider1.SetError(numberBox, "You need to enter a whole number");
}
}
private void numberBox_Validated(object sender, EventArgs e)
{
MessageBox.Show("Well done, you managed to enter a valid number");
}
private void okButton_Click(object sender, EventArgs e)
{
this.Close();
}
private void numberBox_TextChanged(object sender, EventArgs e)
{
MessageBox.Show("text changed");
}
}
partial class Form1
{
private void InitializeComponent()
{
System.ruponentModel.Container components = new System.ruponentModel.Container();
this.numberBox = new System.Windows.Forms.TextBox();
this.label1 = new System.Windows.Forms.Label();
this.okButton = new System.Windows.Forms.Button();
this.errorProvider1 = new System.Windows.Forms.ErrorProvider(components);
((System.ruponentModel.ISupportInitialize)(this.errorProvider1)).BeginInit();
this.SuspendLayout();
//
// numberBox
//
this.numberBox.Location = new System.Drawing.Point(190, 12);
this.numberBox.Name = "numberBox";
this.numberBox.Size = new System.Drawing.Size(44, 20);
this.numberBox.TabIndex = 0;
this.numberBox.Validated += new System.EventHandler(this.numberBox_Validated);
this.numberBox.Validating += new System.ruponentModel.CancelEventHandler(this.numberBox_Validating);
this.numberBox.TextChanged += new System.EventHandler(this.numberBox_TextChanged);
//
// label1
//
this.label1.AutoSize = true;
this.label1.Location = new System.Drawing.Point(12, 15);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(164, 13);
this.label1.TabIndex = 1;
this.label1.Text = "Enter a number between 1 and 10";
//
// okButton
//
this.okButton.Location = new System.Drawing.Point(251, 9);
this.okButton.Name = "okButton";
this.okButton.Size = new System.Drawing.Size(75, 23);
this.okButton.TabIndex = 2;
this.okButton.Text = "OK";
this.okButton.Click += new System.EventHandler(this.okButton_Click);
//
// errorProvider1
//
this.errorProvider1.ContainerControl = this;
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(340, 47);
this.Controls.Add(this.okButton);
this.Controls.Add(this.label1);
this.Controls.Add(this.numberBox);
this.Name = "Form1";
this.Text = "Form1";
((System.ruponentModel.ISupportInitialize)(this.errorProvider1)).EndInit();
this.ResumeLayout(false);
this.PerformLayout();
}
private System.Windows.Forms.TextBox numberBox;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Button okButton;
private System.Windows.Forms.ErrorProvider errorProvider1;
}
public class ErrorProviderTextBox
{
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.Run(new Form1());
}
}</source>

==ErrorProvider: Text length==

<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>

==Get ErrorMessage from ErrorProvider==

<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>

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в 15:31, 26 мая 2010

Admin: 1 версия