Dynamically generated dynamic RadioButtonsList
I'm working on an interesting survey form and I'm trying to break the boredom by making the process more complicated. I have a radobuttonlists group that I want to dynamically create from a name string and a value string. The values are not a problem. This has created all the radio amateurs that I cannot understand.
For example, I could keep doing this:
string[] level = {"Expert", "Proficient", "Limited Experience", "No Experience"};
this.rblCSharp.Items.Clear();
for (int i = 0; i < level.GetLength(0); i++) {
this.rblCSharp.Items.Add(level[i]);
}
this.rblCSharp.RepeatDirection = RepeatDirection.Horizontal;
this.rblVbNet.Items.Clear();
for (int i = 0; i < level.GetLength(0); i++)
{
this.rblVbNet.Items.Add(level[i]);
}
this.rblVbNet.RepeatDirection = RepeatDirection.Horizontal;
... but I do not want. I want to do something more:
string[] level = {"Expert", "Proficient", "Limited Experience", "No Experience"};
string[] language = { "CSharp", "VbNet", "VbClassic", "Crystal", "Ssrs", "Sql2005", "UiWeb" };
for (int j = 0; j < language.GetLength(0); j++) {
this.rbl[j].Items.Clear();
for (int i = 0; i < level.GetLength(0); i++) {
this.rbl[j].Items.Add(level[i]);
}
this.rbl[j].RepeatDirection = RepeatDirection.Horizontal;
}
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You need a way to reference the language-specific RadioButtonList controls. You have a string array, so one way would be to use FindControl, but that would not be my preference.
Another way:
var languageControls = new List<RadioButtonList> { rblCSharp, rblVbNet, rblVbClassic, rblCrystal, rblSsrs, rblSql2005, rblUiWeb };
foreach(var rbl in languageControls)
{
rbl.Items.Clear();
// this could be a foreach instead, but I kept your original code
for (int i = 0; i < level.GetLength(0); i++)
{
rbl.Items.Add(level[i]);
}
rbl.RepeatDirection = RepeatDirection.Horizontal;
}
FindControl approach (this only makes sense if you dynamically created and added the RadioButtonList controls and were not available in markup and through IntelliSense)
string[] level = {"Expert", "Proficient", "Limited Experience", "No Experience"};
string[] language = { "CSharp", "VbNet", "VbClassic", "Crystal", "Ssrs", "Sql2005", "UiWeb" };
foreach (string lang in language)
{
RadioButtonList rbl = (RadioButtonList)FindControl("rbl" + lang);
if (rbl == null)
continue; // keep going through the rest, or throw exception
rbl.Items.Clear();
// this could be a foreach instead, but I kept your original code
for (int i = 0; i < level.GetLength(0); i++)
{
rbl.Items.Add(level[i]);
}
rbl.RepeatDirection = RepeatDirection.Horizontal;
}
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