C# Discussion Boards - CodeProject

Re: disable datagrid column width adjustment at runtime

6-Mar-07 17:20

I want to set the width of the column by hardcoding it and don't want to allow it to resize at runtime.
i.e. don't allow user to resize the column width.
How can i do this?
I have tried this code
public void SetColWidth(DataGridTableStyle ts1,int colNum,int width)
// {
// try
// {
// ts1.GridColumnStyles[colNum].Width = width;
//
// ts1.DataGrid.Refresh();
// }
// catch{}
//
// }
private void button1_Click(object sender, System.EventArgs e)
{
// DataGridTableStyle ts1 = dataGrid1.TableStyles["dtTest"];
//
// SetColWidth(ts1, 1,10);
}

but its not working !Can anybody have any idea!
I have to do this in:
language-C# Windows application
version-.net 1.1 or 2003

Keshav V. Kamat6-Mar-07 19:21

Re: disable datagrid column width adjustment at runtime

6-Mar-07 19:21

Hi Bhavana,

It is very simple.

Right click the data grid. go to properties.
Go to the last selection criteria --->Misc-> Columns.

you must have added your columns and column headers over here.
If not then you can add them over here.

For every column, for resizable criteria choose false. It is true by default.

I hope it works Smile | :)

Keshav Kamat Smile | :)

India

salon6-Mar-07 19:28

Re: disable datagrid column width adjustment at runtime

6-Mar-07 19:28

i m not getting u !
I m not able to see
Go to the last selection criteria --->Misc-> Columns.
Can u please explain me in bit detail?
Please remember mine is VS.NET1.1
C# Windows application

Keshav V. Kamat6-Mar-07 19:33

Re: disable datagrid column width adjustment at runtime

6-Mar-07 19:33

Well, I am working on 2005 version.

Still, try to choose the property of the data grid which allows you to add columns.
There should be a property called as columns, where you can add the collections.
If you find it, then for every column that you add, you can set resizable to false.

Please see if you can do it.

Keshav Kamat Smile | :)

India

salon6-Mar-07 19:41

Re: disable datagrid column width adjustment at runtime

6-Mar-07 19:41

that's the problem !
there is no such property !
we have to code this and i have tried
http://www.syncfusion.com/FAQ/WindowsForms/FAQ_c44c.aspx#q792q
and
<a http://www.syncfusion.com/FAQ/WindowsForms/FAQ_c44c.aspx#q872q
but its not working

Keshav V. Kamat6-Mar-07 19:44

Re: disable datagrid column width adjustment at runtime

6-Mar-07 19:44

I am working on it.

Will let you knw shortly.

Keshav Kamat Smile | :)

India

salon6-Mar-07 19:49

Re: disable datagrid column width adjustment at runtime

6-Mar-07 19:49

if u are working i will let u know my problem !
may it will make a bit easier!
see in the second URL there is a class MyDataGrid which is inherited from DataGrid
which have two protected override funtions OnMouseMove and OnMouseDown which were not working then i realize that may the events should be registered and i tried this syntax to register
this.dataGrid1.MouseMove += new System.Windows.Forms.MouseEventHandler(this.OnMouseMove);
this.dataGrid1.MouseDown += new System.Windows.Forms.MouseEventHandler(this.OnMouseDown);
where i got errors like
Method 'System.Windows.Forms.Control.OnMouseDown(System.Windows.Forms.MouseEventArgs)' does not match delegate 'void System.Windows.Forms.MouseEventHandler(object, System.Windows.Forms.MouseEventArgs )'

Method 'System.Windows.Forms.Control.OnMouseMove(System.Windows.Forms.MouseEventArgs)' does not match delegate 'void System.Windows.Forms.MouseEventHandler(object, System.Windows.Forms.MouseEventArgs )'
Unsure | :~

Keshav V. Kamat6-Mar-07 20:08

Re: disable datagrid column width adjustment at runtime

6-Mar-07 20:08

something like this should work while initializing the component

this.dataGridView1.Columns[0].Resizable.Equals(false);

However, I dont know how far this will work in 2003.

Keshav Kamat
India

salon6-Mar-07 20:28

Re: disable datagrid column width adjustment at runtime

6-Mar-07 20:28

hey u are telling me about 2005 version but mine is 2003:->

sam#6-Mar-07 19:55

Re: disable datagrid column width adjustment at runtime

6-Mar-07 19:55

create an event handler for every DataGrid Column and its default width there

myDataGridColumn.WidthChanged+=new EventHandler(myDataGridColumn_WidthChanged);<br />
<br />
private void myDataGridColumn_WidthChanged(object sender, EventArgs e)<br />
		{<br />
                   myDataGridColumn.Width=50;<br />
		}

salon6-Mar-07 20:00

Re: disable datagrid column width adjustment at runtime

6-Mar-07 20:00

error
'System.Windows.Forms.DataGrid' does not contain a definition for 'WidthChanged'

sam#6-Mar-07 20:03

Re: disable datagrid column width adjustment at runtime

6-Mar-07 20:03

event is not present for data grid its for the DataGride Columns(Which are present in GridColumnStyle)

salon6-Mar-07 20:04

Re: disable datagrid column width adjustment at runtime

6-Mar-07 20:04

ya !
i know !
so do u have any idea what should i have to do?

sam#6-Mar-07 20:12

Re: disable datagrid column width adjustment at runtime

6-Mar-07 20:12

go in Property od data grid and then click in TableStyle Then Go to GridColumnStyle. There see the name of your Columns and create event for every Columns as I said

salon6-Mar-07 20:21

Re: disable datagrid column width adjustment at runtime

6-Mar-07 20:21

i have done like this earlier!
but after setting the width when we run the program initially the widht is same as we coded but when mouse moves to the column header it allows user to cahnge the widht and i want to disallow this for user!
i.e. to fix the column width at coding time and disable resizable functioanlity for user.

sam#6-Mar-07 20:32

Re: disable datagrid column width adjustment at runtime

6-Mar-07 20:32

dear you must be doing wrong. please reade carefully what i suggested you.

salon6-Mar-07 21:03

Re: disable datagrid column width adjustment at runtime

6-Mar-07 21:03

not getting!
can u explain in detail?

sam#6-Mar-07 21:18

Re: disable datagrid column width adjustment at runtime

6-Mar-07 21:18

give me a pm on think2sameer@yahoo.com

Keshav V. Kamat6-Mar-07 20:30

Re: disable datagrid column width adjustment at runtime

6-Mar-07 20:30

Hello Bhavana,

perhaps this should work.

Search for, where the controls are being initialized. Below the initialization of the datagrid control, each column is being initialized.
for each column, or the column that you require, paste this code

this.Column1.Resizable = System.Windows.Forms.DataGridViewTriState.False;

Please tell me if it works. hopefully, it should.

Keshav Kamat Smile | :)

India

salon6-Mar-07 20:37

Re: disable datagrid column width adjustment at runtime

6-Mar-07 20:37

hey!
since i m using a datatable as datasource for my datagrid and no database connectivity.
the initialize components have the initialization of components,dataGrid and form only and no column initialization there.
i m making datagrid whose datasource is datatable and putting the row elements manually. and i know datagridview(2005) have above properties but datagrid(2003) doesn't ahve these properties. Sniff | :^)

Keshav V. Kamat6-Mar-07 21:15

Re: disable datagrid column width adjustment at runtime

6-Mar-07 21:15

Ok. When you load the contents of a database table into the datagrid, get the count of the columns present, and after that for all the columns, you can make sure that the columns cannot be resized.

After loading the database table into the datagrid,

//this will get the count of the columns in the datagrid
DataGridColumnCount=dataGridView1.Columns.Count;

then in a for loop,
set the resizable property of each table to false.
// you are making sure that no column can be resized.

DataGridView1.Columns[i].Resizable=
System.Windows.Forms.DataGridViewTriState.False;

Keshav Kamat Smile | :)

India

salon6-Mar-07 22:02