I have a string "test1" and my comboBox contains test1, test2, and test3. How do I set the selected item to "test1"? That is, how do I match my string to one of the comboBox items?
I was thinking of the line below, but this doesn't work.
comboBox1.SelectedText = "test1";
If the items in your ComboBox are strings, you can try:
comboBox1.SelectedItem = "test1";
ListItem li = DropDownList.Items.FindByValue("13001");
DropDownList.SelectedIndex = ddlCostCenter.Items.IndexOf(li);
For your case you can use
DropDownList.Items.FindByText("Text");
All methods, tricks, and lines of code setting ComboBox item will not work until the ComboBox has a parent.
Have you tried the Text property? It works for me.
ComboBox1.Text = "test1";
The SelectedText property is for the selected portion of the editable text in the textbox part of the combo box.
Assuming that your combobox isn't databound you would need to find the object's index in the "items" collection on your form and then set the "selectedindex" property to the appropriate index.
comboBox1.SelectedIndex = comboBox1.Items.IndexOf("test1");
Keep in mind that the IndexOf function may throw an argumentexception if the item isn't found.
ComboBox1.SelectedIndex= ComboBox1.FindString("Matching String");
Try this in windows Form.
This should do the trick:
Combox1.SelectedIndex = Combox1.FindStringExact("test1")
Assuming that your combobox isn't databound you would need to find the object's index in the "items" collection on your form and then set the "selectedindex" property to the appropriate index.
comboBox1.SelectedIndex = comboBox1.Items.IndexOf("test1");
Keep in mind that the IndexOf function may throw an argumentexception if the item isn't found.
You can say comboBox1.Text = comboBox1.Items[0].ToString();
You don't have that property in the ComboBox. You have SelectedItem or SelectedIndex. If you have the objects you used to fill the combo box then you can use SelectedItem.
If not you can get the collection of items (property Items) and iterate that until you get the value you want and use that with the other properties.
hope it helps.
I have created a Function which will return the Index of the Value
public static int SelectByValue(ComboBox comboBox, string value)
{
int i = 0;
for (i = 0; i <= comboBox.Items.Count - 1; i++)
{
DataRowView cb;
cb = (DataRowView)comboBox.Items[i];
if (cb.Row.ItemArray[0].ToString() == value)// Change the 0 index if your want to Select by Text as 1 Index
{
return i;
}
}
return -1;
}
For me this worked only:
foreach (ComboBoxItem cbi in someComboBox.Items)
{
if (cbi.Content as String == "sometextIntheComboBox")
{
someComboBox.SelectedItem = cbi;
break;
}
}
MOD: and if You have your own objects as items set up in the combobox, then substitute the ComboBoxItem with one of them like:
foreach (Debitor d in debitorCombo.Items)
{
if (d.Name == "Chuck Norris")
{
debitorCombo.SelectedItem = d;
break;
}
}
Assuming that your combobox isn't databound you would need to find the object's index in the "items" collection on your form and then set the "selectedindex" property to the appropriate index.
comboBox1.SelectedIndex = comboBox1.Items.IndexOf("test1");
Keep in mind that the IndexOf function may throw an argumentexception if the item isn't found.
ComboBox1.SelectedIndex= ComboBox1.FindString("Matching String");
Try this in windows Form.
This should do the trick:
Combox1.SelectedIndex = Combox1.FindStringExact("test1")
If the items in your ComboBox are strings, you can try:
comboBox1.SelectedItem = "test1";
SelectedText is to get or set the actual text in the string editor for the selected item in the combobox as documented here . This goes uneditable if you set:
comboBox1.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
Use:
comboBox1.SelectedItem = "test1";
or:
comboBox1.SelectedIndex = comboBox1.Items.IndexOf("test1");
Supposing test1, test2, test3 belong to comboBox1 collection following statement will work.
comboBox1.SelectedIndex = 0;
You don't have that property in the ComboBox. You have SelectedItem or SelectedIndex. If you have the objects you used to fill the combo box then you can use SelectedItem.
If not you can get the collection of items (property Items) and iterate that until you get the value you want and use that with the other properties.
hope it helps.
It should work
Yourcomboboxname.setselecteditem("yourstring");
And if you want to set database string use this
Comboboxname.setselecteditem(ps.get string("databasestring"));
All methods, tricks, and lines of code setting ComboBox item will not work until the ComboBox has a parent.
I've used an extension method:
public static void SelectItemByValue(this ComboBox cbo, string value)
{
for(int i=0; i < cbo.Items.Count; i++)
{
var prop = cbo.Items[i].GetType().GetProperty(cbo.ValueMember);
if (prop!=null && prop.GetValue(cbo.Items[i], null).ToString() == value)
{
cbo.SelectedIndex = i;
break;
}
}
}
Then just consume the method:
ddl.SelectItemByValue(value);
comboBox1.SelectedItem.Text = "test1";
ListItem li = DropDownList.Items.FindByValue("13001");
DropDownList.SelectedIndex = ddlCostCenter.Items.IndexOf(li);
For your case you can use
DropDownList.Items.FindByText("Text");
combo.Items.FindByValue("1").Selected = true;
this works for me.....
comboBox.DataSource.To<DataTable>().Select(" valueMember = '" + valueToBeSelected + "'")[0]["DislplayMember"];
If the items in your ComboBox are strings, you can try:
comboBox1.SelectedItem = "test1";
Supposing test1, test2, test3 belong to comboBox1 collection following statement will work.
comboBox1.SelectedIndex = 0;
_cmbTemplates.SelectedText = "test1"
or maybe
_cmbTemplates.SelectedItem= _cmbTemplates.Items.Equals("test1");
You can say comboBox1.Text = comboBox1.Items[0].ToString();
I've used an extension method:
public static void SelectItemByValue(this ComboBox cbo, string value)
{
for(int i=0; i < cbo.Items.Count; i++)
{
var prop = cbo.Items[i].GetType().GetProperty(cbo.ValueMember);
if (prop!=null && prop.GetValue(cbo.Items[i], null).ToString() == value)
{
cbo.SelectedIndex = i;
break;
}
}
}
Then just consume the method:
ddl.SelectItemByValue(value);
_cmbTemplates.SelectedText = "test1"
or maybe
_cmbTemplates.SelectedItem= _cmbTemplates.Items.Equals("test1");
this works for me.....
comboBox.DataSource.To<DataTable>().Select(" valueMember = '" + valueToBeSelected + "'")[0]["DislplayMember"];
If the items in your ComboBox are strings, you can try:
comboBox1.SelectedItem = "test1";
_cmbTemplates.SelectedText = "test1"
or maybe
_cmbTemplates.SelectedItem= _cmbTemplates.Items.Equals("test1");
This solution is based on MSDN with some modifications I made.
It finds exact or PART of string and sets it.
private int lastMatch = 0;
private void textBoxSearch_TextChanged(object sender, EventArgs e)
{
// Set our intial index variable to -1.
int x = 0;
string match = textBoxSearch.Text;
// If the search string is empty set to begining of textBox
if (textBoxSearch.Text.Length != 0)
{
bool found = true;
while (found)
{
if (comboBoxSelect.Items.Count == x)
{
comboBoxSelect.SelectedIndex = lastMatch;
found = false;
}
else
{
comboBoxSelect.SelectedIndex = x;
match = comboBoxSelect.SelectedValue.ToString();
if (match.Contains(textBoxSearch.Text))
{
lastMatch = x;
found = false;
}
x++;
}
}
}
else
comboBoxSelect.SelectedIndex = 0;
}
I hope I helped!
I used KeyValuePair for ComboBox data bind and I wanted to find item by value so this worked in my case:
comboBox.SelectedItem = comboBox.Items.Cast<KeyValuePair<string,string>>().First(item=> item.Value == "value to match");
Have you tried the Text property? It works for me.
ComboBox1.Text = "test1";
The SelectedText property is for the selected portion of the editable text in the textbox part of the combo box.
I have created a Function which will return the Index of the Value
public static int SelectByValue(ComboBox comboBox, string value)
{
int i = 0;
for (i = 0; i <= comboBox.Items.Count - 1; i++)
{
DataRowView cb;
cb = (DataRowView)comboBox.Items[i];
if (cb.Row.ItemArray[0].ToString() == value)// Change the 0 index if your want to Select by Text as 1 Index
{
return i;
}
}
return -1;
}
I've filled my ComboBox with een DataTable filled from a database. Then I've set the DisplayMember and the ValueMember. And I use this code to set the selected item.
foreach (DataRowView Row in ComboBox1.Items)
{
if (Row["ColumnName"].ToString() == "Value") ComboBox1.SelectedItem = Row;
}
Supposing test1, test2, test3 belong to comboBox1 collection following statement will work.
comboBox1.SelectedIndex = 0;
Find mySecondObject (of type MyObject) in combobox (containing a list of MyObjects) and select the item:
foreach (MyObject item in comboBox.Items)
{
if (item.NameOrID == mySecondObject.NameOrID)
{
comboBox.SelectedItem = item;
break;
}
}
SelectedText is to get or set the actual text in the string editor for the selected item in the combobox as documented here . This goes uneditable if you set:
comboBox1.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
Use:
comboBox1.SelectedItem = "test1";
or:
comboBox1.SelectedIndex = comboBox1.Items.IndexOf("test1");
Have you tried the Text property? It works for me.
ComboBox1.Text = "test1";
The SelectedText property is for the selected portion of the editable text in the textbox part of the combo box.
Assuming that your combobox isn't databound you would need to find the object's index in the "items" collection on your form and then set the "selectedindex" property to the appropriate index.
comboBox1.SelectedIndex = comboBox1.Items.IndexOf("test1");
Keep in mind that the IndexOf function may throw an argumentexception if the item isn't found.
I used KeyValuePair for ComboBox data bind and I wanted to find item by value so this worked in my case:
comboBox.SelectedItem = comboBox.Items.Cast<KeyValuePair<string,string>>().First(item=> item.Value == "value to match");
It should work
Yourcomboboxname.setselecteditem("yourstring");
And if you want to set database string use this
Comboboxname.setselecteditem(ps.get string("databasestring"));
For me this worked only:
foreach (ComboBoxItem cbi in someComboBox.Items)
{
if (cbi.Content as String == "sometextIntheComboBox")
{
someComboBox.SelectedItem = cbi;
break;
}
}
MOD: and if You have your own objects as items set up in the combobox, then substitute the ComboBoxItem with one of them like:
foreach (Debitor d in debitorCombo.Items)
{
if (d.Name == "Chuck Norris")
{
debitorCombo.SelectedItem = d;
break;
}
}
Please try this way, it works for me:
Combobox1.items[Combobox1.selectedIndex] = "replaced text";
This solution is based on MSDN with some modifications I made.
It finds exact or PART of string and sets it.
private int lastMatch = 0;
private void textBoxSearch_TextChanged(object sender, EventArgs e)
{
// Set our intial index variable to -1.
int x = 0;
string match = textBoxSearch.Text;
// If the search string is empty set to begining of textBox
if (textBoxSearch.Text.Length != 0)
{
bool found = true;
while (found)
{
if (comboBoxSelect.Items.Count == x)
{
comboBoxSelect.SelectedIndex = lastMatch;
found = false;
}
else
{
comboBoxSelect.SelectedIndex = x;
match = comboBoxSelect.SelectedValue.ToString();
if (match.Contains(textBoxSearch.Text))
{
lastMatch = x;
found = false;
}
x++;
}
}
}
else
comboBoxSelect.SelectedIndex = 0;
}
I hope I helped!
You don't have that property in the ComboBox. You have SelectedItem or SelectedIndex. If you have the objects you used to fill the combo box then you can use SelectedItem.
If not you can get the collection of items (property Items) and iterate that until you get the value you want and use that with the other properties.
hope it helps.
But if I see such a code as a code reviewer, I would recommend to reconsider all the method algorithm.
Have you tried the Text property? It works for me.
ComboBox1.Text = "test1";
The SelectedText property is for the selected portion of the editable text in the textbox part of the combo box.
_cmbTemplates.SelectedText = "test1"
or maybe
_cmbTemplates.SelectedItem= _cmbTemplates.Items.Equals("test1");
SelectedText is to get or set the actual text in the string editor for the selected item in the combobox as documented here . This goes uneditable if you set:
comboBox1.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
Use:
comboBox1.SelectedItem = "test1";
or:
comboBox1.SelectedIndex = comboBox1.Items.IndexOf("test1");
You don't have that property in the ComboBox. You have SelectedItem or SelectedIndex. If you have the objects you used to fill the combo box then you can use SelectedItem.
If not you can get the collection of items (property Items) and iterate that until you get the value you want and use that with the other properties.
hope it helps.
This should do the trick:
Combox1.SelectedIndex = Combox1.FindStringExact("test1")
Supposing test1, test2, test3 belong to comboBox1 collection following statement will work.
comboBox1.SelectedIndex = 0;
combo.Items.FindByValue("1").Selected = true;
Find mySecondObject (of type MyObject) in combobox (containing a list of MyObjects) and select the item:
foreach (MyObject item in comboBox.Items)
{
if (item.NameOrID == mySecondObject.NameOrID)
{
comboBox.SelectedItem = item;
break;
}
}
I've filled my ComboBox with een DataTable filled from a database. Then I've set the DisplayMember and the ValueMember. And I use this code to set the selected item.
foreach (DataRowView Row in ComboBox1.Items)
{
if (Row["ColumnName"].ToString() == "Value") ComboBox1.SelectedItem = Row;
}
Please try this way, it works for me:
Combobox1.items[Combobox1.selectedIndex] = "replaced text";
But if I see such a code as a code reviewer, I would recommend to reconsider all the method algorithm.
SelectedText is to get or set the actual text in the string editor for the selected item in the combobox as documented here . This goes uneditable if you set:
comboBox1.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
Use:
comboBox1.SelectedItem = "test1";
or:
comboBox1.SelectedIndex = comboBox1.Items.IndexOf("test1");
Source: Stackoverflow.com