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Reset gridview

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GridView

This is a migrated thread and some comments may be shown as answers.

7 Answers, 1 is accepted

answered on 01 Feb 2011, 01:34 AM

Hello,

Here is a sample for you that resets the list and rebinds the grid. If you have any questions, please let me know

Designer File

namespace RadGridView_ResetSource_C

{

partial class Form1

{

/// <summary>

/// Required designer variable.

/// </summary>

private System.ComponentModel.IContainer components;

/// <summary>

/// Clean up any resources being used.

/// </summary>

/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>

protected override void Dispose(bool disposing)

{

if (disposing && (components != null))

{

components.Dispose();

}

base.Dispose(disposing);

}

#region Windows Form Designer generated code

/// <summary>

/// Required method for Designer support - do not modify

/// the contents of this method with the code editor.

/// </summary>

private void InitializeComponent()

{

this.radButton1 = new Telerik.WinControls.UI.RadButton();

this.radGridView1 = new Telerik.WinControls.UI.RadGridView();

((System.ComponentModel.ISupportInitialize)(this.radButton1)).BeginInit();

((System.ComponentModel.ISupportInitialize)(this.radGridView1)).BeginInit();

this.SuspendLayout();

//

// radButton1

//

this.radButton1.Location = new System.Drawing.Point(245, 311);

this.radButton1.Name = "radButton1";

this.radButton1.Size = new System.Drawing.Size(130, 24);

this.radButton1.TabIndex = 0;

this.radButton1.Text = "Reset";

this.radButton1.Click += new System.EventHandler(this.radButton1_Click);

//

// radGridView1

//

this.radGridView1.Location = new System.Drawing.Point(13, 13);

this.radGridView1.Name = "radGridView1";

this.radGridView1.Size = new System.Drawing.Size(362, 292);

this.radGridView1.TabIndex = 1;

this.radGridView1.Text = "radGridView1";

//

// Form1

//

this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);

this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;

this.ClientSize = new System.Drawing.Size(387, 347);

this.Controls.Add(this.radGridView1);

this.Controls.Add(this.radButton1);

this.Name = "Form1";

this.Text = "Form1";

this.Load += new System.EventHandler(this.Form1_Load);

((System.ComponentModel.ISupportInitialize)(this.radButton1)).EndInit();

((System.ComponentModel.ISupportInitialize)(this.radGridView1)).EndInit();

this.ResumeLayout(false);

}

#endregion

private Telerik.WinControls.UI.RadButton radButton1;

private Telerik.WinControls.UI.RadGridView radGridView1;

}

form1.cs

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using Telerik.WinControls.UI;

namespace RadGridView_ResetSource_C

{

public partial class Form1 : Form

{

BindingSource m_GridBindingSource = new BindingSource();

List<MyObject> m_MyList = new List<MyObject>();

private List<MyObject> m_Original = new List<MyObject>();

public Form1()

{

InitializeComponent();

}

private void Form1_Load(object sender, EventArgs e)

{

// Add colomns

this.radGridView1.AutoGenerateColumns = false;

this.radGridView1.Columns.Add(new GridViewComboBoxColumn("MyString1"));

this.radGridView1.Columns.Add(new GridViewComboBoxColumn("MyString2"));

// Binding Source For Column 1

BindingSource source1 = new BindingSource();

List<String> s1List = new List<String>();

String s1a = "First (S1)";

String s2a = "Second (S1)";

String s3a = "Third (S1)";

s1List.Add(s1a);

s1List.Add(s2a);

s1List.Add(s3a);

source1.DataSource = s1List;

// Binding Source for Column 2

BindingSource source2 = new BindingSource();

List<String> s2List = new List<String>();

String s1b = "First (S2)";

String s2b = "Second (S2)";

String s3b = "Third (S2)";

s2List.Add(s1b);

s2List.Add(s2b);

s2List.Add(s3b);

source2.DataSource = s2List;

// Set Column Data Sources

((GridViewComboBoxColumn)this.radGridView1.Columns["MyString1"]).DataSource = source1;

((GridViewComboBoxColumn)this.radGridView1.Columns["MyString2"]).DataSource = source2;

// Set Grid DataSource

PopulateList();

m_GridBindingSource.DataSource = m_MyList;

this.radGridView1.DataSource = m_GridBindingSource;

this.radGridView1.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill;

}

private void PopulateList()

{

m_MyList.Clear();

m_MyList.Add(new MyObject("First (S1)", "First (S2)"));

m_MyList.Add(new MyObject("Third (S1)", "Third (S2)"));

}

private void radButton1_Click(object sender, EventArgs e)

{

this.radGridView1.BeginUpdate();

this.radGridView1.DataSource = null;

PopulateList();

this.radGridView1.DataSource = m_GridBindingSource;

this.radGridView1.EndUpdate();

}

public class MyObject

{

public MyObject()

{

}

public MyObject(string myString1, string myString2)

{

_myString1 = myString1;

_myString2 = myString2;

}

private string _myString1;

public string MyString1

{

get { return _myString1; }

set { _myString1 = value; }

}

private string _myString2;

public string MyString2

{

get { return _myString2; }

set { _myString2 = value; }

}

Hope that helps
Richard