|
Thanks for your reply.i had tried over that but i coudnt get any idea over there will u be clarify how to achieve that?
rgrds
Kanna
|
|
|
|
|
Hi,
Im using a datagridview which reacts on the enter key as on the tab
key. In other words, it moves to the next column instead of moving to
the next row. This works great for normal DataGridViewTextBoxCells. I
use derived classes from DataGridViewTextBoxCell,
DataGridViewTextBoxColumn and DataGridViewTextBoxEditingControl to
make that dream become reality. This works great 
But now the tragedy...I have two DataGridViewComboBoxColumns in my
datagridview and unfortunatly it seems as if they behave a little
bitchy. If I enter such a DataGridViewComboBoxColumn and change into
the EditMode (by keystroke) and if I now want to leave it by pressing
the enter key it moves to the next row instead of moving to the next
column which is totally driving me insane.
Has anyone a solution how to fix that up? I thought I could build a
derived class for the DataGridViewComboBoxEditingControl to make that
work but havent found out how it actually works so far..any
suggestions would be greatly appreciated
best regards
Christoph
|
|
|
|
|
Hi,
How can I convert a report (.MAR) which was created in Microsoft Access to HTML in .Net?
I should be able to view a report which was created in Microsoft Access in Internet Explorer without having Microsoft Access to be installed on client's machine.
Note: My Access report contains some bar graphs etc other than text.
Thanks.
-- modified at 6:05 Tuesday 8th May, 2007
Subrahmanyam K
|
|
|
|
|
hi
i have a richText box that and a long text in it, i want to change color of my custom words in RichTextBox, but how to do ?
i don't want any class or dll or ... i want to know it's algorithm.
thanks
|
|
|
|
|
Have a look at SelectionColor of richtextbox
|
|
|
|
|
|
I am printing my Datatable to excel but I noticed when it reaches a certain number of rows it causes an exception.
Is there a limit to the number of DataTable rows that can be exported to a worksheet? If so, is there a way around this?
I am using Microsoft.Office.Interop.Excel.
Thanks in advance!
I am a SysAdmin, I battle my own daemons.
|
|
|
|
|
There is no such limit i guess, even if exists it is close to 65k i guess!
What is your row count?
Gautham
|
|
|
|
|
Sometimes more than 100K rows. If there is such a limit, I'm thinking of breaking up the resultset (DataTable) in multiple worksheets.
I am a SysAdmin, I battle my own daemons.
|
|
|
|
|
If that is acceptable by the end user then i would say it as a good solution
Gautham
|
|
|
|
|
How to check if the form is already open, so that it cannot be duplicatly openned
|
|
|
|
|
do it with the form load event that like this:
if (Process.GetProcessesByName(yourprocessname).Length >=1){
MessageBox.show("already opened!");
return;
}
|
|
|
|
|
I think he meant some form he has in his application, not the application itself
|
|
|
|
|
if that is like you said, that needs to use Mutex.
|
|
|
|
|
|
Thanks but my problem i want to close form1 before opening form2
|
|
|
|
|
Use singleton design pattern and it'll solve your problem
for example u want form1 to be checked if it's already opened
take a object of form1 with in your form1 class
make the constructor private of your form1 class
make a public static method
with in that method check if the object is null or not if null assign a new instance of your form1 and if not null then return the already initialized instance
|
|
|
|
|
Best way to solve this is to to make your class constructor private and put static method that returns reference to only instance of your class
Code example:
<br />
class Example<br />
{<br />
private static Example THIS = null;<br />
<br />
public static Example CREATE_FORM()<br />
{<br />
if (THIS == null)<br />
THIS = new Example();<br />
<br />
return THIS;<br />
}<br />
<br />
private Example()<br />
{<br />
}<br />
}<br />
|
|
|
|
|
if( myForm != null && !myForm.Disposing && myForm.IsHandleCreated)
return;
else
myForm.Show();
|
|
|
|
|
hi i am currently using c# visual studio 2005 window application
and i would like to make an event handler which would execute when a string variable data changes
i though it may be possible when i came accross form1.desinger.cs and saw the codes like:
private void InitializeComponent()<br />
{<br />
this.textBox1 = new System.Windows.Forms.TextBox();<br />
this.button1 = new System.Windows.Forms.Button();<br />
this.SuspendLayout();<br />
this.textBox1.Location = new System.Drawing.Point(89, 127);<br />
this.textBox1.Name = "textBox1";<br />
this.textBox1.Size = new System.Drawing.Size(100, 20);<br />
this.textBox1.TabIndex = 0;<br />
this.textBox1.TextChanged += new System.EventHandler(this.textBox1_TextChanged);<br />
this.button1.Location = new System.Drawing.Point(203, 198);<br />
this.button1.Name = "button1";<br />
this.button1.Size = new System.Drawing.Size(75, 23);<br />
this.button1.TabIndex = 1;<br />
this.button1.Text = "button1";<br />
this.button1.UseVisualStyleBackColor = true;<br />
this.button1.Click += new System.EventHandler(this.button1_Click);<br />
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);<br />
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;<br />
this.ClientSize = new System.Drawing.Size(292, 266);<br />
this.Controls.Add(this.button1);<br />
this.Controls.Add(this.textBox1);<br />
this.Name = "Form1";<br />
this.Text = "auction";<br />
this.Load += new System.EventHandler(this.Form1_Load);<br />
this.ResumeLayout(false);<br />
this.PerformLayout();
|
|
|
|
|
One way to achieve what you are looking for would be to create a Property for the string variable and raise the event yourself in the setter..
|
|
|
|
|
how can i do that?
what are the steps involve?
|
|
|
|
|
you should be able to figure that out. but this should get you started (warning this is uncompiled, untested:
public delegate void MyStringChangedDelegate(string newVal);<br />
public event MyStringChangedDelegate MyStringChanged;<br />
<br />
<br />
string myString; <br />
public String MyString<br />
{<br />
get<br />
{<br />
return myString;<br />
}<br />
set<br />
{<br />
myString = value;<br />
if(MyStringChanged!=null)<br />
MyStringChanged(value);<br />
}<br />
}
|
|
|
|
|
hi everybody,
i m creating a browser in 2005 .net using c#.i came across the problem.i want to open a new form on closing event of old form. New form has field userid n password,only after verifying valid user both form should be closed.if user is not valid then old form should not be closed.
if any idea then send me some clue if possible please send me source code in c#.
|
|
|
|
|
Show the new form in the onclosing event of the first one. After validating it close the new form and the old form will be closed too. If you want to cancel closing of old form have a look at the second argument of the onclosing event
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
