asked on Determine if user enters a integer or a double value into a cell of a grid.
Dear Experts,
I use a grid from DevExpress on my form. What I would like is a methode to check
if a user enters an integer-value (f.e: 8) or a double value (f.e: 8,8) into the cells
of column called colValue (fieldname = "Value").
I wrote it in psuedo-code:
if the column fieldname = Value
if (IsMGDL == false || value is a interger-value)
then devide (/) the value with 18
if (IsMGDL == true|| value is a double-value)
then x the value with 18
I have begun to do this myself and this is al I got:
Who can help me?
Greetings,
Peter Kiers
I use a grid from DevExpress on my form. What I would like is a methode to check
if a user enters an integer-value (f.e: 8) or a double value (f.e: 8,8) into the cells
of column called colValue (fieldname = "Value").
I wrote it in psuedo-code:
if the column fieldname = Value
if (IsMGDL == false || value is a interger-value)
then devide (/) the value with 18
if (IsMGDL == true|| value is a double-value)
then x the value with 18
I have begun to do this myself and this is al I got:
private void gridView1_CustomColumnDisplayText(object sender, DevExpress.XtraGrid.Views.Base.CustomColumnDisplayTextEventArgs e)
{
if (e.Column.FieldName == "Value")
{
if (Properties.Settings.Default.IsMGDL==false)
{
e.DisplayText = (value / 18).ToString();
}
else if (Properties.Settings.Default.IsMGDL==true)
{
e.DisplayText = (value * 18).ToString();
}
}
}
}
Who can help me?
Greetings,
Peter Kiers
.NET Programming
Last Comment
Peter Kiers
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SOLUTION
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ASKER
I have thought about this and came up with another solution:
I want a function that checks if a value entered in a cell has a comma (,) or
period (.) in it. If not then give false else true.
And use this function in my gridView1_CustomColumnDisp
Peter
I want a function that checks if a value entered in a cell has a comma (,) or
period (.) in it. If not then give false else true.
And use this function in my gridView1_CustomColumnDisp
Peter
You could write your own method for such a task. For example, you could create an enum to represent the appropriate "types" and parse the value from within the method. Here is a rudimentary example. It may work for your environment, but you may need to tweak it as well.
using System;
using System.Globalization;
using System.Threading;
namespace _27631360
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine(GetValueType("8").ToString());
Console.WriteLine(GetValueType("8.00").ToString());
Console.WriteLine(GetValueType(" 8").ToString());
Console.WriteLine(GetValueType("8 ").ToString());
Console.WriteLine(GetValueType(" 8 ").ToString());
Console.WriteLine(GetValueType(" .8").ToString());
Console.WriteLine(GetValueType("8,000").ToString());
Console.WriteLine(GetValueType("8,000.00").ToString());
Console.WriteLine(GetValueType("8a.00").ToString());
Console.ReadKey();
}
static NumericType GetValueType(string value)
{
NumericType result = NumericType.Integer;
NumberFormatInfo numFormat = Thread.CurrentThread.CurrentCulture.NumberFormat;
value = value.Trim();
for (int i = 0; i < value.Length; i++)
{
if (value[i] == numFormat.CurrencyDecimalSeparator[0])
{
if (result == NumericType.Double)
{
return NumericType.NonNumeric;
}
else
{
result = NumericType.Double;
}
}
else if (value[i] == numFormat.CurrencyGroupSeparator[0])
{
continue;
}
else if (!char.IsNumber(value[i]))
{
return NumericType.NonNumeric;
}
}
return result;
}
}
public enum NumericType
{
NonNumeric,
Integer,
Double
}
}
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ASKER
I have this:
public static bool CheckType(string strToTransform)
{
decimal result;
if (!decimal.TryParse(strToTr
{
// return false
}
if (strToTransform.Contains("
{
//return true
}
if (strToTransform.Contains("
{
//return true
}
return ????
}
Can someone help me with this.
Peter
public static bool CheckType(string strToTransform)
{
decimal result;
if (!decimal.TryParse(strToTr
{
// return false
}
if (strToTransform.Contains("
{
//return true
}
if (strToTransform.Contains("
{
//return true
}
return ????
}
Can someone help me with this.
Peter
ASKER
I was to soon with posting Kaufmed gave me the right solution.
Peter
Peter
And another approach would be to check if a value has a comma or a period in it.
Peter