Export RadGridView to Bitmap full Size

Telerik > Windows Forms > Export RadGridView to Bitmap

Sometimes is useful to export Telerik Rad Grid to image to its full size without regard of scroll bars.




Example:

Private Function GetImage(grd As Telerik.WinControls.UI.RadGridView)

        grd.Visible = False
        grd.Dock = DockStyle.None
        Dim w = 0
        For Each col In grd.Columns
            w = w + col.Width
        Next
        grd.Width = w
        If grd.Rows.Count > 0 Then
            grd.Height = (grd.Rows.Count * grd.Rows(0).Height)
        Else
            grd.Height = 150
        End If

        Dim bitmap As New Bitmap(grd.Bounds.Width, grd.Bounds.Height)

        grd.DrawToBitmap(bitmap, grd.Bounds)
        grd.Dock = DockStyle.Fill
        grd.Visible = True

        Return bitmap
End Function

Alter SQL Server Examples

SQL Server > DDL > Alter

Alter Table

Modifies a table definition by altering, adding, or dropping columns and constraints.

Examples:

• Add new column to a table

    ALTER TABLE dbo.TABLE_NAME ADD FIELD_NAME nvarchar(MAX) NULL

• Add computed column

ALTER LOGIN

Changes the properties of a SQL Server login account. Examples:    1.Change user password       ALTER LOGIN sa WITH PASSWORD = 'your_password';    2.Enable user       ALTER LOGIN sa ENABLE;

CREATE TABLE SQL Server

SQL Server > SQL Statements > CREATE TABLE

CREATE TABLE statement creates a table in a database.

Syntax

CREATE TABLE table_name
(
   column_name data_type(size),
   ...
);

Example

CREATE TABLE [dbo].[Table1](

       [ID] [bigint] IDENTITY(1,1) NOT NULL,
       [Name] [nvarchar](50) NOT NULL,
       [Password] [nvarchar](50) NOT NULL,
 CONSTRAINT [PK_users1] PRIMARY KEY CLUSTERED
(
       [ID] ASC
)
) ON [PRIMARY]
GO

Putting Quotation Marks in a String C#

C# > String > Quote

const string quote = "\"";
string str = "Topic: " + quote + "Putting Quotation Marks in a String" + quote;

Disable Spin Editor GridViewDecimalColumn RadGridView

Telerik > Windows Forms > > RadGridView > Disable Spin Editor


GridSpinEditor represents a spin editor in RadGridView.

Example: How to disable GridSpinEditor in RadGridView

  Private Sub RadGrid_CellEditorInitialized(sender As Object, e As Telerik.WinControls.UI.GridViewCellEventArgs) Handles Me.CellEditorInitialized

        Dim spinEditor As GridSpinEditor = TryCast(Me.ActiveEditor, GridSpinEditor)
        If spinEditor IsNot Nothing Then
            Dim element As GridSpinEditorElement = spinEditor.EditorElement
            element.ShowUpDownButtons = False
            element.InterceptArrowKeys = False
            element.EnableMouseWheel = False
        End If
    End Sub

Arrow keys not trigger VB NET

VB.NET > Form > Methods > ProcessCmdKey

ProcessCmdKey method processes a command key.

Example:
Use ProcessCmdKey to catch arrow keys (arrow keys not trigger VB NET in form events)

Solution:

   

Protected Overrides Function ProcessCmdKey(ByRef msg As Message, ByVal keydata As Keys) As Boolean

        If keydata = Keys.Right Or keydata = Keys.Left Or keydata = Keys.Up Or keydata = Keys.Down Then
            OnKeyDown(New KeyEventArgs(keydata))
            ProcessCmdKey = True
        Else
            ProcessCmdKey = MyBase.ProcessCmdKey(msg, keydata)
        End If
    End Function

Private Sub RunForm_KeyDown(sender As System.Object, e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown

        If e.KeyCode = Keys.Right Then
        End If
End Sub

 

Numeric Column DataGridView c#

C# > DataGridView > Numeric Column

EditingControlShowing event occurs when a control for editing a cell is showing.

Example

         private void dataGridView1_EditingControlShowing(object sender,                  DataGridViewEditingControlShowingEventArgs e)

        {

            e.Control.KeyPress -= new KeyPressEventHandler(NumColumn_KeyPress);

            if (dataGridView1.CurrentCell.ColumnIndex == 2 || dataGridView1.CurrentCell.ColumnIndex == 3) // numeric columns

            {

                TextBox tb = e.Control as TextBox;

                if (tb != null)

                {

                    tb.KeyPress += new KeyPressEventHandler(NumColumn_KeyPress);

                }

            }

        }

        private void NumColumn_KeyPress(object sender, KeyPressEventArgs e)

        {

            if (!char.IsControl(e.KeyChar)

                && !char.IsDigit(e.KeyChar) && !char.IsPunctuation(e.KeyChar) )

            {

                e.Handled = true;

            }

        }